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d226b1df361988f885c298737d6019c863a25f26
Analyze and fix the following issue in the Linux kernel code: selftests: fib_tests: mute cleanup error message
Problem Details: In the end of the test, there will be an error message induced by the `ip netns del ns1` command in cleanup() Tests passed: 201 Tests failed: 0 Cannot remove namespace file "/run/netns/ns1": No such file or directory This can even be reproduced with just `./fib_tests.sh -h` as we're calling c...
```diff diff --git a/tools/testing/selftests/net/fib_tests.sh b/tools/testing/selftests/net/fib_tests.sh index 7da8ec838c63..35d89dfa6f11 100755 --- a/tools/testing/selftests/net/fib_tests.sh +++ b/tools/testing/selftests/net/fib_tests.sh @@ -68,7 +68,7 @@ setup() cleanup() { $IP link del dev dummy0 &> /dev/null - ...
afbed3f74830163f9559579dee382cac3cff82da
Analyze and fix the following issue in the Linux kernel code: net/mlx5e: do as little as possible in napi poll when budget is 0
Problem Details: NAPI gets called with budget of 0 from netpoll, which has interrupts disabled. We should try to free some space on Tx rings and nothing else. Specifically do not try to handle XDP TX or try to refill Rx buffers - we can't use the page pool from IRQ context. Don't check if IRQs moved, either, that make...
```diff diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c index a50bfda18e96..fbb2d963fb7e 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c @@ -161,20 +161,22 @@ int mlx5e_napi_poll(str...
74836ec828fe17b63f2006fdbf53311d691396bf
Analyze and fix the following issue in the Linux kernel code: tls: rx: strp: don't use GFP_KERNEL in softirq context
Problem Details: When receive buffer is small, or the TCP rx queue looks too complicated to bother using it directly - we allocate a new skb and copy data into it. We already use sk->sk_allocation... but nothing actually sets it to GFP_ATOMIC on the ->sk_data_ready() path. Users of HW offload are far more likely to e...
```diff diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c index 635b8bf6b937..6e6a7c37d685 100644 --- a/net/tls/tls_sw.c +++ b/net/tls/tls_sw.c @@ -2304,10 +2304,14 @@ static void tls_data_ready(struct sock *sk) struct tls_context *tls_ctx = tls_get_ctx(sk); struct tls_sw_context_rx *ctx = tls_sw_ctx_rx(tls_ctx); ...
eca9bfafee3a0487e59c59201ae14c7594ba940a
Analyze and fix the following issue in the Linux kernel code: tls: rx: strp: preserve decryption status of skbs when needed
Problem Details: When receive buffer is small we try to copy out the data from TCP into a skb maintained by TLS to prevent connection from stalling. Unfortunately if a single record is made up of a mix of decrypted and non-decrypted skbs combining them into a single skb leads to loss of decryption status, resulting in ...
```diff diff --git a/include/net/tls.h b/include/net/tls.h index 6056ce5a2aa5..596595c4b1af 100644 --- a/include/net/tls.h +++ b/include/net/tls.h @@ -126,6 +126,7 @@ struct tls_strparser { u32 mark : 8; u32 stopped : 1; u32 copy_mode : 1; + u32 mixed_decrypted : 1; u32 msg_ready : 1; struct strp_msg stm; d...
8b0c0dc9fbbd01e58a573a41c38885f9e4c17696
Analyze and fix the following issue in the Linux kernel code: tls: rx: strp: fix determining record length in copy mode
Problem Details: We call tls_rx_msg_size(skb) before doing skb->len += chunk. So the tls_rx_msg_size() code will see old skb->len, most likely leading to an over-read. Worst case we will over read an entire record, next iteration will try to trim the skb but may end up turning frag len negative or discarding the subse...
```diff diff --git a/net/tls/tls_strp.c b/net/tls/tls_strp.c index 2b6fa9855999..e2e48217e7ac 100644 --- a/net/tls/tls_strp.c +++ b/net/tls/tls_strp.c @@ -210,19 +210,28 @@ static int tls_strp_copyin(read_descriptor_t *desc, struct sk_buff *in_skb, skb_frag_size(frag), chunk)); - sz = tls_rx_msg_si...
14c4be92ebb3e36e392aa9dd8f314038a9f96f3c
Analyze and fix the following issue in the Linux kernel code: tls: rx: strp: force mixed decrypted records into copy mode
Problem Details: If a record is partially decrypted we'll have to CoW it, anyway, so go into copy mode and allocate a writable skb right away. This will make subsequent fix simpler because we won't have to teach tls_strp_msg_make_copy() how to copy skbs while preserving decrypt status. Tested-by: Shai Amiram <samiram...
```diff diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 738776ab8838..0b40417457cd 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -1587,6 +1587,16 @@ static inline void skb_copy_hash(struct sk_buff *to, const struct sk_buff *from) to->l4_hash = from->l4_hash; }; +static inli...
210620ae44a83f25220450bbfcc22e6fe986b25f
Analyze and fix the following issue in the Linux kernel code: tls: rx: strp: set the skb->len of detached / CoW'ed skbs
Problem Details: alloc_skb_with_frags() fills in page frag sizes but does not set skb->len and skb->data_len. Set those correctly otherwise device offload will most likely generate an empty skb and hit the BUG() at the end of __skb_nsg(). Fixes: 84c61fe1a75b ("tls: rx: do not use the standard strparser") Tested-by: Sh...
```diff diff --git a/net/tls/tls_strp.c b/net/tls/tls_strp.c index 955ac3e0bf4d..24016c865e00 100644 --- a/net/tls/tls_strp.c +++ b/net/tls/tls_strp.c @@ -56,6 +56,8 @@ static struct sk_buff *tls_strp_msg_make_copy(struct tls_strparser *strp) offset += skb_frag_size(frag); } + skb->len = strp->stm.full_len; + sk...
b3a03b540e3cf62a255213d084d76d71c02793d5
Analyze and fix the following issue in the Linux kernel code: tls: rx: device: fix checking decryption status
Problem Details: skb->len covers the entire skb, including the frag_list. In fact we're guaranteed that rxm->full_len <= skb->len, so since the change under Fixes we were not checking decrypt status of any skb but the first. Note that the skb_pagelen() added here may feel a bit costly, but it's removed by subsequent f...
```diff diff --git a/net/tls/tls_device.c b/net/tls/tls_device.c index a7cc4f9faac2..3b87c7b04ac8 100644 --- a/net/tls/tls_device.c +++ b/net/tls/tls_device.c @@ -1012,7 +1012,7 @@ int tls_device_decrypted(struct sock *sk, struct tls_context *tls_ctx) struct sk_buff *skb_iter; int left; - left = rxm->full_len - s...
45b1a1227a7aaa99254551c513406c7aa904e968
Analyze and fix the following issue in the Linux kernel code: mptcp: introduces more address related mibs
Problem Details: Currently we don't track explicitly a few events related to address management suboption handling; this patch adds new mibs for ADD_ADDR and RM_ADDR options tx and for missed tx events due to internal storage exhaustion. The self-tests must be updated to properly handle different mibs with the same/sh...
```diff diff --git a/net/mptcp/mib.c b/net/mptcp/mib.c index 0dac2863c6e1..a0990c365a2e 100644 --- a/net/mptcp/mib.c +++ b/net/mptcp/mib.c @@ -34,7 +34,11 @@ static const struct snmp_mib mptcp_snmp_list[] = { SNMP_MIB_ITEM("NoDSSInWindow", MPTCP_MIB_NODSSWINDOW), SNMP_MIB_ITEM("DuplicateData", MPTCP_MIB_DUPDATA), ...
7e01c7f7046efc2c7c192c3619db43292b98e997
Analyze and fix the following issue in the Linux kernel code: net: cdc_ncm: Deal with too low values of dwNtbOutMaxSize
Problem Details: Currently in cdc_ncm_check_tx_max(), if dwNtbOutMaxSize is lower than the calculated "min" value, but greater than zero, the logic sets tx_max to dwNtbOutMaxSize. This is then used to allocate a new SKB in cdc_ncm_fill_tx_frame() where all the data is handled. For small values of dwNtbOutMaxSize the m...
```diff diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c index 6ce8f4f0c70e..db05622f1f70 100644 --- a/drivers/net/usb/cdc_ncm.c +++ b/drivers/net/usb/cdc_ncm.c @@ -181,9 +181,12 @@ static u32 cdc_ncm_check_tx_max(struct usbnet *dev, u32 new_tx) else min = ctx->max_datagram_size + ctx->max_ndp_si...
6ac392815628f317fcfdca1a39df00b9cc4ebc8b
Analyze and fix the following issue in the Linux kernel code: fs: allow to mount beneath top mount
Problem Details: Various distributions are adding or are in the process of adding support for system extensions and in the future configuration extensions through various tools. A more detailed explanation on system and configuration extensions can be found on the manpage which is listed below at [1]. System extension...
```diff diff --git a/fs/namespace.c b/fs/namespace.c index f91a60e6039d..382edc76aee7 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -926,6 +926,33 @@ void mnt_set_mountpoint(struct mount *mnt, hlist_add_head(&child_mnt->mnt_mp_list, &mp->m_list); } +/** + * mnt_set_mountpoint_beneath - mount a mount beneath ...
3e49c1e4a6152b6ad758a28ecce8fb470f46f6ed
Analyze and fix the following issue in the Linux kernel code: block: BFQ: Add several invariant checks
Problem Details: If anything goes wrong with the counters that track the number of requests, I/O locks up. Make such scenarios easier to debug by adding invariant checks for the request counters. Additionally, check that BFQ queues are empty before these are freed. Cc: Jan Kara <jack@suse.cz> Cc: Yu Kuai <yukuai3@huaw...
```diff diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c index 3164e3177965..c5727afad159 100644 --- a/block/bfq-iosched.c +++ b/block/bfq-iosched.c @@ -5403,6 +5403,9 @@ void bfq_put_queue(struct bfq_queue *bfqq) if (bfqq->bfqd->last_completed_rq_bfqq == bfqq) bfqq->bfqd->last_completed_rq_bfqq = NULL; + ...
a036e698c231ba884daa37196be3ac6c6dce1d75
Analyze and fix the following issue in the Linux kernel code: block: mq-deadline: Fix handling of at-head zoned writes
Problem Details: Before dispatching a zoned write from the FIFO list, check whether there are any zoned writes in the RB-tree with a lower LBA for the same zone. This patch ensures that zoned writes happen in order even if at_head is set for some writes for a zone and not for others. Reviewed-by: Christoph Hellwig <hc...
```diff diff --git a/block/mq-deadline.c b/block/mq-deadline.c index e90879869c90..6aa5daf7ae32 100644 --- a/block/mq-deadline.c +++ b/block/mq-deadline.c @@ -346,7 +346,7 @@ static struct request * deadline_fifo_request(struct deadline_data *dd, struct dd_per_prio *per_prio, enum dd_data_dir data_dir) { - s...
3ddbe2a7e0d4a155a805f69c906c9beed30d4cc4
Analyze and fix the following issue in the Linux kernel code: block: Fix the type of the second bdev_op_is_zoned_write() argument
Problem Details: Change the type of the second argument of bdev_op_is_zoned_write() from blk_opf_t into enum req_op because this function expects an operation without flags as second argument. Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: Pankaj Raghav <p.raghav@samsung.com> Reviewed-by: Ch...
```diff diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index b441e633f4dd..db24cf98ccfb 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -1282,7 +1282,7 @@ static inline unsigned int bdev_zone_no(struct block_device *bdev, sector_t sec) } static inline bool bdev_op_is_zoned_write(st...
45b46b6f157169b452772430566772506e25687a
Analyze and fix the following issue in the Linux kernel code: block: mq-deadline: Add a word in a source code comment
Problem Details: Add the missing word "and". Cc: Damien Le Moal <dlemoal@kernel.org> Suggested-by: Damien Le Moal <dlemoal@kernel.org> Fixes: 945ffb60c11d ("mq-deadline: add blk-mq adaptation of the deadline IO scheduler") Signed-off-by: Bart Van Assche <bvanassche@acm.org> Tested-by: Damien Le Moal <dlemoal@kernel.or...
```diff diff --git a/block/mq-deadline.c b/block/mq-deadline.c index 5839a027e0f0..cea1b084c69e 100644 --- a/block/mq-deadline.c +++ b/block/mq-deadline.c @@ -443,7 +443,7 @@ static struct request *__dd_dispatch_request(struct deadline_data *dd, */ rq = deadline_next_request(dd, per_prio, dd->last_dir); if (rq &...
dd6216bb16e83e349d5d987227328031b0b0d30d
Analyze and fix the following issue in the Linux kernel code: blk-mq: make sure elevator callbacks aren't called for passthrough request
Problem Details: In case of q->elevator, passthrough request can still be marked as RQF_ELV, so some elevator callbacks will be called for them. Fix this by splitting RQF_SCHED_TAGS, which is set for all requests that are issued on a queue that uses an I/O scheduler, and RQF_USE_SCHED for non-flush, non-passthrough re...
```diff diff --git a/block/blk-mq-debugfs.c b/block/blk-mq-debugfs.c index ae1b3080b62b..22e39b9a77ec 100644 --- a/block/blk-mq-debugfs.c +++ b/block/blk-mq-debugfs.c @@ -249,6 +249,8 @@ static const char *const rqf_name[] = { RQF_NAME(MIXED_MERGE), RQF_NAME(MQ_INFLIGHT), RQF_NAME(DONTPREP), + RQF_NAME(SCHED_TAGS...
d97217e7f024bbe9aa62aea070771234c2879358
Analyze and fix the following issue in the Linux kernel code: blk-mq: don't queue plugged passthrough requests into scheduler
Problem Details: Passthrough requests should never be queued to the I/O scheduler, as scheduling these opaque requests doesn't make sense, and I/O schedulers might require req->bio to be always valid. We never let passthrough requests insert into the scheduler before commit 1c2d2fff6dc0 ("block: wire-up support for pa...
```diff diff --git a/block/blk-mq.c b/block/blk-mq.c index f6dad0886a2f..8b7e4daaa5b7 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -2711,6 +2711,7 @@ static void blk_mq_dispatch_plug_list(struct blk_plug *plug, bool from_sched) struct request *requeue_list = NULL; struct request **requeue_lastp = &requeue_li...
98ffe02529117095fad0399ce16235d66b8b5f8d
Analyze and fix the following issue in the Linux kernel code: counter: 104-quad-8: Migrate to the regmap API
Problem Details: The regmap API supports IO port accessors so we can take advantage of regmap abstractions rather than handling access to the device registers directly in the driver. With regmap we get boundary checks, read-write permissions, operation synchronization locks, and more for free. Most important of all, ra...
```diff diff --git a/drivers/counter/104-quad-8.c b/drivers/counter/104-quad-8.c index d6ede651cc5e..ed1f57511955 100644 --- a/drivers/counter/104-quad-8.c +++ b/drivers/counter/104-quad-8.c @@ -9,7 +9,7 @@ #include <linux/bits.h> #include <linux/counter.h> #include <linux/device.h> -#include <linux/errno.h> +#inclu...
2d5153526f929838b0912ded26862840f72745f4
Analyze and fix the following issue in the Linux kernel code: dax: fix missing-prototype warnings
Problem Details: dev_dax_probe declaration for this function was removed with the only caller outside of device.c. Mark it static to avoid a W=1 warning: drivers/dax/device.c:399:5: error: no previous prototype for 'dev_dax_probe' Similarly, run_dax() causes a warning, but this one is because the declaration needs to ...
```diff diff --git a/drivers/dax/bus.h b/drivers/dax/bus.h index 8cd79ab34292..43f490e9ce65 100644 --- a/drivers/dax/bus.h +++ b/drivers/dax/bus.h @@ -49,13 +49,6 @@ void dax_driver_unregister(struct dax_device_driver *dax_drv); void kill_dev_dax(struct dev_dax *dev_dax); bool static_dev_dax(struct dev_dax *dev_dax);...
e764f12208b99ac7892c4e3f6bf88d71ca71036f
Analyze and fix the following issue in the Linux kernel code: cxl: Move cxl_await_media_ready() to before capacity info retrieval
Problem Details: Move cxl_await_media_ready() to cxl_pci probe before driver starts issuing IDENTIFY and retrieving memory device information to ensure that the device is ready to provide the information. Allow cxl_pci_probe() to succeed even if media is not ready. Cache the media failure in cxlds and don't ask the dev...
```diff diff --git a/drivers/cxl/core/mbox.c b/drivers/cxl/core/mbox.c index 23b9ff920d7e..2c8dc7e2b84d 100644 --- a/drivers/cxl/core/mbox.c +++ b/drivers/cxl/core/mbox.c @@ -1028,7 +1028,7 @@ static int cxl_mem_get_partition_info(struct cxl_dev_state *cxlds) * cxl_dev_state_identify() - Send the IDENTIFY command to ...
ce17ad0d54985e2595a3e615fda31df61808a08c
Analyze and fix the following issue in the Linux kernel code: cxl: Wait Memory_Info_Valid before access memory related info
Problem Details: The Memory_Info_Valid bit (CXL 3.0 8.1.3.8.2) indicates that the CXL Range Size High and Size Low registers are valid. The bit must be set within 1 second of reset deassertion to the device. Check valid bit before we check the Memory_Active bit when waiting for cxl_await_media_ready() to ensure that th...
```diff diff --git a/drivers/cxl/core/pci.c b/drivers/cxl/core/pci.c index c35c002b65dd..67f4ab6daa34 100644 --- a/drivers/cxl/core/pci.c +++ b/drivers/cxl/core/pci.c @@ -101,23 +101,57 @@ int devm_cxl_port_enumerate_dports(struct cxl_port *port) } EXPORT_SYMBOL_NS_GPL(devm_cxl_port_enumerate_dports, CXL); -/* - * ...
9930702cfebb24acf6c000b55541239095447e47
Analyze and fix the following issue in the Linux kernel code: ipmi_watchdog: Fix read syscall not responding to signals during sleep
Problem Details: Read syscall cannot response to sigals when data_to_read remains at 0 and the while loop cannot break. Check signal_pending in the loop. Reported-by: Zhen Ni <zhen.ni@easystack.cn> Message-Id: <20230517085412.367022-1-zhen.ni@easystack.cn> Signed-off-by: Corey Minyard <minyard@acm.org>
```diff diff --git a/drivers/char/ipmi/ipmi_watchdog.c b/drivers/char/ipmi/ipmi_watchdog.c index 0d4a8dcacfd4..9a459257489f 100644 --- a/drivers/char/ipmi/ipmi_watchdog.c +++ b/drivers/char/ipmi/ipmi_watchdog.c @@ -802,7 +802,7 @@ static ssize_t ipmi_read(struct file *file, init_waitqueue_entry(&wait, current); ...
456d8aa37d0f56fc9e985e812496e861dcd6f2f2
Analyze and fix the following issue in the Linux kernel code: PCI/ASPM: Disable ASPM on MFD function removal to avoid use-after-free
Problem Details: Struct pcie_link_state->downstream is a pointer to the pci_dev of function 0. Previously we retained that pointer when removing function 0, and subsequent ASPM policy changes dereferenced it, resulting in a use-after-free warning from KASAN, e.g.: # echo 1 > /sys/bus/pci/devices/0000:03:00.0/remove...
```diff diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c index 66d7514ca111..db32335039d6 100644 --- a/drivers/pci/pcie/aspm.c +++ b/drivers/pci/pcie/aspm.c @@ -1010,21 +1010,24 @@ void pcie_aspm_exit_link_state(struct pci_dev *pdev) down_read(&pci_bus_sem); mutex_lock(&aspm_lock); - /* - * All PCI...
eb0764b822b9b26880b28ccb9100b2983e01bc17
Analyze and fix the following issue in the Linux kernel code: cxl/port: Enable the HDM decoder capability for switch ports
Problem Details: Derick noticed, when testing hot plug, that hot-add behaves nominally after a removal. However, if the hot-add is done without a prior removal, CXL.mem accesses fail. It turns out that the original implementation of the port driver and region programming wrongly assumed that platform-firmware always en...
```diff diff --git a/drivers/cxl/core/pci.c b/drivers/cxl/core/pci.c index f332fe7af92b..c35c002b65dd 100644 --- a/drivers/cxl/core/pci.c +++ b/drivers/cxl/core/pci.c @@ -241,17 +241,36 @@ static void disable_hdm(void *_cxlhdm) hdm + CXL_HDM_DECODER_CTRL_OFFSET); } -static int devm_cxl_enable_hdm(struct dev...
f219050af06d83f436945880fc9c04db3bb2860f
Analyze and fix the following issue in the Linux kernel code: Input: libps2 - do not discard non-ack bytes when controlling LEDs
Problem Details: Upon receiving a PS/2 command the device and controller are supposed to stop sending normal data (scancodes or movement packets) and instead immediately start delivering ACK/NAK and command response. Unfortunately often EC has an output buffer which may contain latched data by the time the EC receives ...
```diff diff --git a/drivers/input/serio/libps2.c b/drivers/input/serio/libps2.c index 7c5fc853072a..6d78a1fe00c1 100644 --- a/drivers/input/serio/libps2.c +++ b/drivers/input/serio/libps2.c @@ -21,7 +21,10 @@ #define PS2_CMD_SETSCALE11 0x00e6 #define PS2_CMD_SETRES 0x10e8 +#define PS2_CMD_EX_SETLEDS 0x20eb +#defi...
7d674f9150c361e5b992551b46516d41eede3722
Analyze and fix the following issue in the Linux kernel code: Input: libps2 - fix aborting PS/2 commands
Problem Details: When aborting PS/2 command the kernel should [re]set all flags before waking up waiters, otherwise waiting thread may read obsolete values of flags. Reported-by: Raul Rangel <rrangel@chromium.org> Reviewed-by: Raul E Rangel <rrangel@chromium.org> Link: https://lore.kernel.org/r/20230511185252.386941-6...
```diff diff --git a/drivers/input/serio/libps2.c b/drivers/input/serio/libps2.c index 14b70a78875d..09eb605364bb 100644 --- a/drivers/input/serio/libps2.c +++ b/drivers/input/serio/libps2.c @@ -478,15 +478,22 @@ bool ps2_handle_response(struct ps2dev *ps2dev, u8 data) } EXPORT_SYMBOL(ps2_handle_response); +/* + * ...
1db0fd245b6016c21097b5ae01aeb447484de951
Analyze and fix the following issue in the Linux kernel code: Input: libps2 - fix NAK handling
Problem Details: Do not try to process "resend" or "reject" responses from the device as normal response data for a command. Reviewed-by: Raul E Rangel <rrangel@chromium.org> Link: https://lore.kernel.org/r/20230511185252.386941-5-dmitry.torokhov@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
```diff diff --git a/drivers/input/serio/libps2.c b/drivers/input/serio/libps2.c index d09450eca9a7..14b70a78875d 100644 --- a/drivers/input/serio/libps2.c +++ b/drivers/input/serio/libps2.c @@ -445,7 +445,7 @@ bool ps2_handle_ack(struct ps2dev *ps2dev, u8 data) ps2dev->flags &= ~PS2_FLAG_ACK; wake_up(&ps2dev->wait...
f91280f35895d6dcb53f504968fafd1da0b00397
Analyze and fix the following issue in the Linux kernel code: ACPI: x86: Add ACPI_QUIRK_UART1_SKIP for Lenovo Yoga Book yb1-x90f/l
Problem Details: The Lenovo Yoga Book yb1-x90f/l 2-in-1 which ships with Android as Factory OS has (another) bug in its DSDT where the UART resource for the BTH0 ACPI device contains "\\_SB.PCIO.URT1" as path to the UART. Note that is with a letter 'O' instead of the number '0' which is wrong. This causes Linux to in...
```diff diff --git a/drivers/acpi/x86/utils.c b/drivers/acpi/x86/utils.c index 4cfee2da0675..c2b925f8cd4e 100644 --- a/drivers/acpi/x86/utils.c +++ b/drivers/acpi/x86/utils.c @@ -259,10 +259,11 @@ bool force_storage_d3(void) * drivers/platform/x86/x86-android-tablets.c kernel module. */ #define ACPI_QUIRK_SKIP_I2C...
14c3555f055dd0819381148bf5b569cc5ba9ddfb
Analyze and fix the following issue in the Linux kernel code: arm64: kvm: avoid overflow in integer division
Problem Details: The newly added kvm_mmu_split_nr_page_tables() function uses DIV_ROUND_DOWN_ULL() to divide 64-bit addresses, but this requires a 32-bit divisior, and PUD_SIZE may exceed that when 64KB pages are used: arch/arm64/kvm/mmu.c: In function 'kvm_mmu_split_nr_page_tables': include/linux/math.h:42:64: error:...
```diff diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c index 3386bd28d267..6db9ef288ec3 100644 --- a/arch/arm64/kvm/mmu.c +++ b/arch/arm64/kvm/mmu.c @@ -92,8 +92,8 @@ static int kvm_mmu_split_nr_page_tables(u64 range) int n = 0; if (KVM_PGTABLE_MIN_BLOCK_LEVEL < 2) - n += DIV_ROUND_UP_ULL(range, PUD_SI...
ed99135f7621459ef873991115372ba1afe88a04
Analyze and fix the following issue in the Linux kernel code: selinux: keep context struct members in sync
Problem Details: Commit 53f3517ae087 ("selinux: do not leave dangling pointer behind") reset the `str` field of the `context` struct in an OOM error branch. In this struct the fields `str` and `len` are coupled and should be kept in sync. Set the length to zero according to the string be set to NULL. Fixes: 53f3517ae...
```diff diff --git a/security/selinux/ss/context.h b/security/selinux/ss/context.h index 44179977f434..aed704b8c642 100644 --- a/security/selinux/ss/context.h +++ b/security/selinux/ss/context.h @@ -168,6 +168,7 @@ static inline int context_cpy(struct context *dst, const struct context *src) if (rc) { kfree(dst->s...
615ed9ece01814a94fb544226cb3f4e03f06851d
Analyze and fix the following issue in the Linux kernel code: drm/i915/mtl: Fix expected reg value for Thunderbolt PLL disabling
Problem Details: While disabling Thunderbolt PLL, we request PLL to be stopped and wait for ACK bit to be cleared. The expected value should be '0' instead of '~XELPDP_TBT_CLOCK_ACK' or otherwise we incorrectly receive dmesg warn "PHY PLL not unlocked in 10us". Signed-off-by: Mika Kahola <mika.kahola@intel.com> Review...
```diff diff --git a/drivers/gpu/drm/i915/display/intel_cx0_phy.c b/drivers/gpu/drm/i915/display/intel_cx0_phy.c index ef0615cdc8a0..c0755ac796ee 100644 --- a/drivers/gpu/drm/i915/display/intel_cx0_phy.c +++ b/drivers/gpu/drm/i915/display/intel_cx0_phy.c @@ -2861,9 +2861,7 @@ static void intel_mtl_tbt_pll_disable(struc...
632c60ecd25dbacee54d5581fe3aeb834b57010a
Analyze and fix the following issue in the Linux kernel code: clk: imx: scu: use _safe list iterator to avoid a use after free
Problem Details: This loop is freeing "clk" so it needs to use list_for_each_entry_safe(). Otherwise it dereferences a freed variable to get the next item on the loop. Fixes: 77d8f3068c63 ("clk: imx: scu: add two cells binding support") Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Reviewed-by: Abel Vesa <ab...
```diff diff --git a/drivers/clk/imx/clk-scu.c b/drivers/clk/imx/clk-scu.c index 1e6870f3671f..db307890e4c1 100644 --- a/drivers/clk/imx/clk-scu.c +++ b/drivers/clk/imx/clk-scu.c @@ -707,11 +707,11 @@ struct clk_hw *imx_clk_scu_alloc_dev(const char *name, void imx_clk_scu_unregister(void) { - struct imx_scu_clk_nod...
5c2664cc09f94ba11c61908d5c7dac1c35d6dee8
Analyze and fix the following issue in the Linux kernel code: ALSA: emu10k1: fix terminating synthesizer voices
Problem Details: Make terminate_voice() actually do at all what it's supposed to do: instantly and completely shut down the note. The bogus behavior was mostly harmless, as usually the voice is freed right afterwards, which implicitly terminates it anyway. Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>...
```diff diff --git a/sound/pci/emu10k1/emu10k1_callback.c b/sound/pci/emu10k1/emu10k1_callback.c index aab8d64fd708..dcd7be2d281b 100644 --- a/sound/pci/emu10k1/emu10k1_callback.c +++ b/sound/pci/emu10k1/emu10k1_callback.c @@ -136,8 +136,13 @@ terminate_voice(struct snd_emux_voice *vp) if (snd_BUG_ON(!vp)) return;...
df335e9a8bcb58be3b7388cff556f06eeb3d024f
Analyze and fix the following issue in the Linux kernel code: ALSA: emu10k1: fix synthesizer sample playback position and caching
Problem Details: Compensate for the cache delay, and actually populate the cache. Without these, the playback would start with garbage (which would be (mostly?) masqueraded by the attack phase). Unlike for the PCM voices, this doesn't try to compensate for the interpolator read-ahead, because it's pointless to be supe...
```diff diff --git a/sound/pci/emu10k1/emu10k1_callback.c b/sound/pci/emu10k1/emu10k1_callback.c index 06440b97b5d7..aab8d64fd708 100644 --- a/sound/pci/emu10k1/emu10k1_callback.c +++ b/sound/pci/emu10k1/emu10k1_callback.c @@ -253,7 +253,7 @@ lookup_voices(struct snd_emux *emu, struct snd_emu10k1 *hw, /* check if sa...
ac5902f84bb546c64aea02c439c2579cbf40318f
Analyze and fix the following issue in the Linux kernel code: ublk: fix AB-BA lockdep warning
Problem Details: When handling UBLK_IO_FETCH_REQ, ctx->uring_lock is grabbed first, then ub->mutex is acquired. When handling UBLK_CMD_STOP_DEV or UBLK_CMD_DEL_DEV, ub->mutex is grabbed first, then calling io_uring_cmd_done() for canceling uring command, in which ctx->uring_lock may be required. Real deadlock only ha...
```diff diff --git a/drivers/block/ublk_drv.c b/drivers/block/ublk_drv.c index c7ed5d69e9ee..33d3298a0da1 100644 --- a/drivers/block/ublk_drv.c +++ b/drivers/block/ublk_drv.c @@ -1120,6 +1120,11 @@ static inline bool ublk_queue_ready(struct ublk_queue *ubq) return ubq->nr_io_ready == ubq->q_depth; } +static void u...
6d600229df1ed06f46ba68ac706d9f44ba8c5fb4
Analyze and fix the following issue in the Linux kernel code: drm/amd/display: enable dpia validate
Problem Details: Use dpia_validate_usb4_bw() function Fixes: a8b537605e22 ("drm/amd/display: Add function pointer for validate bw usb4") Reviewed-by: Roman Li <roman.li@amd.com> Reviewed-by: Meenakshikumar Somasundaram <meenakshikumar.somasundaram@amd.com> Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-o...
```diff diff --git a/drivers/gpu/drm/amd/display/dc/link/link_validation.c b/drivers/gpu/drm/amd/display/dc/link/link_validation.c index d4b7da526f0a..e8b2fc4002a5 100644 --- a/drivers/gpu/drm/amd/display/dc/link/link_validation.c +++ b/drivers/gpu/drm/amd/display/dc/link/link_validation.c @@ -359,5 +359,8 @@ bool link...
bf4823267a817f7c155876a125b94336d7113e77
Analyze and fix the following issue in the Linux kernel code: drm/amd/pm: fix possible power mode mismatch between driver and PMFW
Problem Details: PMFW may boots the ASIC with a different power mode from the system's real one. Notify PMFW explicitly the power mode the system in. This is needed only when ACDC switch via gpio is not supported. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Kenneth Feng <kenneth.feng@amd.com> Signed-off-...
```diff diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c index 5633c5797e85..2ddf5198e5c4 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c +++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c @@ -733,6 +733,24 @@ static int smu_late_init(void *handle) return ret; ...
8173cab3368a13cdc3cad0bd5cf14e9399b0f501
Analyze and fix the following issue in the Linux kernel code: drm/amdgpu/gfx10: Disable gfxoff before disabling powergating.
Problem Details: Otherwise we get a full system lock (looks like a FW mess). Copied the order from the GFX9 powergating code. Fixes: 366468ff6c34 ("drm/amdgpu: Allow GfxOff on Vangogh as default") Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2545 Signed-off-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl> Tes...
```diff diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c index f5b5ce1051a2..1ec076517c96 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c @@ -8152,8 +8152,14 @@ static int gfx_v10_0_set_powergating_state(void *handle, case IP...
401f022cc5a2f0c521767d82c352d83aed944834
Analyze and fix the following issue in the Linux kernel code: dmaengine: ste_dma40: fix typo in enum documentation
Problem Details: s/40_command/d40_command to fix the below warning reported: drivers/dma/ste_dma40.c:151: warning: expecting prototype for enum 40_command. Prototype was for enum d40_command instead Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Vinod Koul <vkoul@kernel.org> Link: https://lore.k...
```diff diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index 56c839241a53..2246a604256e 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -136,7 +136,7 @@ static const struct stedma40_chan_cfg dma40_memcpy_conf_log = { }; /** - * enum 40_command - The different commands and/or st...
ef1e1c41a11d37069029bc0563c2fa6915d9880b
Analyze and fix the following issue in the Linux kernel code: dmaengine: ste_dma40: use correct print specfier for resource_size_t
Problem Details: We should use %pR for printing resource_size_t, so update that fixing the warning: drivers/dma/ste_dma40.c:3556:25: warning: format specifies type 'unsigned int' but the argument has type 'resource_size_t' (aka 'unsigned long long') [-Wformat] Reported-by: kernel test robot <lkp@intel.com> Fixes: 5a1...
```diff diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index c30d00a78eed..56c839241a53 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -3542,8 +3542,8 @@ static int __init d40_probe(struct platform_device *pdev) } base->lcpa_size = resource_size(&res_lcpa); base->phy_lcpa = ...
6797400ef4abb4359c225a207c1f3ca28591f51c
Analyze and fix the following issue in the Linux kernel code: ALSA: emu10k1: fix handling of half-loop interrupts
Problem Details: We'd try to iterate the voices twice without resetting the pointer. This went unnoticed, because the code isn't actually in use. Amends commit 27ae958cf6 ("emu10k1 driver - add multichannel device hw:x,3 [2-8/8]"). Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de> Link: https://lore.kerne...
```diff diff --git a/sound/pci/emu10k1/irq.c b/sound/pci/emu10k1/irq.c index 7dc803aaa850..a813ef8c2f8d 100644 --- a/sound/pci/emu10k1/irq.c +++ b/sound/pci/emu10k1/irq.c @@ -47,12 +47,13 @@ irqreturn_t snd_emu10k1_interrupt(int irq, void *dev_id) status &= ~(IPR_VOLINCR|IPR_VOLDECR|IPR_MUTE); } if (status & ...
0be0a62fd08414e3cd67c8fb898b2bb9e74eb225
Analyze and fix the following issue in the Linux kernel code: ALSA: emu10k1: fix PCM playback buffer size constraints
Problem Details: The period_bytes_min parameter and the buffer_bytes minimum constraint made no sense at all, as they didn't reflect any hardware limitation. Instead, apply a frame-based period_size minimum constraint, which is derived from the cache size (it would be actually possible to go below that, but it would re...
```diff diff --git a/sound/pci/emu10k1/emupcm.c b/sound/pci/emu10k1/emupcm.c index 89f7e85034b6..9045359bb461 100644 --- a/sound/pci/emu10k1/emupcm.c +++ b/sound/pci/emu10k1/emupcm.c @@ -444,9 +444,8 @@ static const struct snd_pcm_hardware snd_emu10k1_efx_playback = .rate_max = 48000, .channels_min = NUM_EFX_PLAY...
120e1aa2f2e60b55f9d20c2fe1c6144739e00dc4
Analyze and fix the following issue in the Linux kernel code: spi: hisi-kunpeng: Fix error checking
Problem Details: The function debugfs_create_dir returns ERR_PTR if an error occurs, and the appropriate way to verify for errors is to use the inline function IS_ERR. The patch will substitute the null-comparison with IS_ERR. Suggested-by: Ivan Orlov <ivan.orlov0322@gmail.com Signed-off-by: Yeqi Fu <asuk4.q@gmail.com...
```diff diff --git a/drivers/spi/spi-hisi-kunpeng.c b/drivers/spi/spi-hisi-kunpeng.c index 524eadbef87b..2b4b3d2a22b8 100644 --- a/drivers/spi/spi-hisi-kunpeng.c +++ b/drivers/spi/spi-hisi-kunpeng.c @@ -169,7 +169,7 @@ static int hisi_spi_debugfs_init(struct hisi_spi *hs) master = container_of(hs->dev, struct spi_con...
a511637502b1caa135046d0f8fdabd55a31af8ef
Analyze and fix the following issue in the Linux kernel code: regulator: mt6359: add read check for PMIC MT6359
Problem Details: Add hardware version read check for PMIC MT6359 Signed-off-by: Sen Chu <sen.chu@mediatek.com Fixes: 4cfc96547512 ("regulator: mt6359: Add support for MT6359P regulator") Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com Link: https://lore.kernel.org/r/20230518040646.8730...
```diff diff --git a/drivers/regulator/mt6359-regulator.c b/drivers/regulator/mt6359-regulator.c index 1849566784ab..3eb86ec21d08 100644 --- a/drivers/regulator/mt6359-regulator.c +++ b/drivers/regulator/mt6359-regulator.c @@ -951,9 +951,12 @@ static int mt6359_regulator_probe(struct platform_device *pdev) struct reg...
8f8eaa1b023580f7dce7fe8d73539b093edea65b
Analyze and fix the following issue in the Linux kernel code: fbdev: Move framebuffer I/O helpers into <asm/fb.h>
Problem Details: Implement framebuffer I/O helpers, such as fb_read*() and fb_write*(), in the architecture's <asm/fb.h> header file or the generic one. The common case has been the use of regular I/O functions, such as __raw_readb() or memset_io(). A few architectures used plain system- memory reads and writes. Sparc...
```diff diff --git a/arch/ia64/include/asm/fb.h b/arch/ia64/include/asm/fb.h index 0208f64a0da0..bcf982043a5c 100644 --- a/arch/ia64/include/asm/fb.h +++ b/arch/ia64/include/asm/fb.h @@ -2,7 +2,9 @@ #ifndef _ASM_FB_H_ #define _ASM_FB_H_ +#include <linux/compiler.h> #include <linux/efi.h> +#include <linux/string.h>...
8ff1541da3908b504cb53e5384d5deae2b9c6e1a
Analyze and fix the following issue in the Linux kernel code: fbdev: Include <linux/fb.h> instead of <asm/fb.h>
Problem Details: Replace include statements for <asm/fb.h> with <linux/fb.h>. Fixes the coding style: if a header is available in asm/ and linux/, it is preferable to include the header from linux/. This only affects a few source files, most of which already include <linux/fb.h>. Suggested-by: Sam Ravnborg <sam@ravnbo...
```diff diff --git a/arch/parisc/video/fbdev.c b/arch/parisc/video/fbdev.c index 4a0ae08fc75b..137561d98246 100644 --- a/arch/parisc/video/fbdev.c +++ b/arch/parisc/video/fbdev.c @@ -5,10 +5,9 @@ * Copyright (C) 2001-2002 Thomas Bogendoerfer <tsbogend@alpha.franken.de> */ +#include <linux/fb.h> #include <linux/m...
2df418ff8be6c5e96bf92d74ce341342dc9080fe
Analyze and fix the following issue in the Linux kernel code: fbdev/matrox: Remove trailing whitespaces
Problem Details: Fix coding style. No functional changes. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Reviewed-by: Sui Jingfeng <suijingfeng@loongson.cn> Tested-by: Sui Jingfeng <suijingfeng@loongson.cn> Link: https://pa...
```diff diff --git a/drivers/video/fbdev/matrox/matroxfb_accel.c b/drivers/video/fbdev/matrox/matroxfb_accel.c index 9cb0685feddd..ce51227798a1 100644 --- a/drivers/video/fbdev/matrox/matroxfb_accel.c +++ b/drivers/video/fbdev/matrox/matroxfb_accel.c @@ -88,7 +88,7 @@ static inline void matrox_cfb4_pal(u_int32_t* pa...
bb47f218fd015b8530364271463f6cbc4d15b814
Analyze and fix the following issue in the Linux kernel code: fbdev/hitfb: Cast I/O offset to address
Problem Details: Cast I/O offsets to pointers to use them with I/O functions. The I/O functions expect pointers of type 'volatile void __iomem *', but the offsets are plain integers. Build warnings are ../drivers/video/fbdev/hitfb.c: In function 'hitfb_accel_wait': ../arch/x86/include/asm/hd64461.h:18:33: warning:...
```diff diff --git a/drivers/video/fbdev/hitfb.c b/drivers/video/fbdev/hitfb.c index 3033f5056976..7737923b7a0a 100644 --- a/drivers/video/fbdev/hitfb.c +++ b/drivers/video/fbdev/hitfb.c @@ -42,17 +42,33 @@ static struct fb_fix_screeninfo hitfb_fix = { .accel = FB_ACCEL_NONE, }; +static volatile void __iomem *hit...
b9f9a485fb0eb80b0e2b90410b28cbb9b0e85687
Analyze and fix the following issue in the Linux kernel code: netfilter: nft_exthdr: add boolean DCCP option matching
Problem Details: The xt_dccp iptables module supports the matching of DCCP packets based on the presence or absence of DCCP options. Extend nft_exthdr to add this functionality to nftables. Link: https://bugzilla.netfilter.org/show_bug.cgi?id=930 Signed-off-by: Jeremy Sowden <jeremy@azazel.net> Signed-off-by: Florian...
```diff diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h index c4d4d8e42dc8..e059dc2644df 100644 --- a/include/uapi/linux/netfilter/nf_tables.h +++ b/include/uapi/linux/netfilter/nf_tables.h @@ -859,12 +859,14 @@ enum nft_exthdr_flags { * @NFT_EXTHDR_OP_TCP: match again...
5b1cd21f0f05757e724e18a599b391689f8565fc
Analyze and fix the following issue in the Linux kernel code: ALSA: emu10k1: fix PCM playback cache and interrupt handling
Problem Details: The cache causes a fixed delay regardless of stream parameters. Consequently, all that "cache invalidate size" calculation stuff was garbage (which can be traced right back to Creative's OSS driver). This also removes the definitions of registers CD1..CDF, because they are accessed only relative to CD...
```diff diff --git a/include/sound/emu10k1.h b/include/sound/emu10k1.h index 2d64f07e3883..ee662a1b0dc7 100644 --- a/include/sound/emu10k1.h +++ b/include/sound/emu10k1.h @@ -116,6 +116,10 @@ #define IPR_MIDITRANSBUFEMPTY 0x00000100 /* MIDI UART transmit buffer empty */ #define IPR_MIDIRECVBUFEMPTY 0x00000080 /* MID...
1e5323bd7725c1e3a5bd65af210ea7d54ccdbd00
Analyze and fix the following issue in the Linux kernel code: Revert "ALSA: emu10k1 - delay the PCM interrupts (add pcm_irq_delay parameter)"
Problem Details: This workaround fails to address the underlying problem, which is actually wholly self-made. Subsequent patches will fix it. This reverts commit 56385a12d9bb9e173751f74b6c430742018cafc0. Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de> Link: https://lore.kernel.org/r/20230517174256.36570...
```diff diff --git a/include/sound/emu10k1.h b/include/sound/emu10k1.h index 5ad2144fa530..2d64f07e3883 100644 --- a/include/sound/emu10k1.h +++ b/include/sound/emu10k1.h @@ -1670,7 +1670,6 @@ struct snd_emu10k1 { unsigned int address_mode; /* address mode */ unsigned long dma_mask; /* PCI DMA mask */ bool iom...
89dcd87ce534a3a7f267cfd58505803006f51301
Analyze and fix the following issue in the Linux kernel code: bridge: always declare tunnel functions
Problem Details: When CONFIG_BRIDGE_VLAN_FILTERING is disabled, two functions are still defined but have no prototype or caller. This causes a W=1 warning for the missing prototypes: net/bridge/br_netlink_tunnel.c:29:6: error: no previous prototype for 'vlan_tunid_inrange' [-Werror=missing-prototypes] net/bridge/br_ne...
```diff diff --git a/net/bridge/br_private_tunnel.h b/net/bridge/br_private_tunnel.h index 2b053289f016..efb096025151 100644 --- a/net/bridge/br_private_tunnel.h +++ b/net/bridge/br_private_tunnel.h @@ -27,6 +27,10 @@ int br_process_vlan_tunnel_info(const struct net_bridge *br, int br_get_vlan_tunnel_info_size(struct ...
6363845005202148b8409ec3082e80845c19d309
Analyze and fix the following issue in the Linux kernel code: workqueue: Report work funcs that trigger automatic CPU_INTENSIVE mechanism
Problem Details: Workqueue now automatically marks per-cpu work items that hog CPU for too long as CPU_INTENSIVE, which excludes them from concurrency management and prevents stalling other concurrency-managed work items. If a work function keeps running over the thershold, it likely needs to be switched to use an unbo...
```diff diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 1f2185cf2f0a..3ed7dda4c994 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -6938,6 +6938,11 @@ them from noticeably delay...
616db8779b1e3f93075df691432cccc5ef3c3ba0
Analyze and fix the following issue in the Linux kernel code: workqueue: Automatically mark CPU-hogging work items CPU_INTENSIVE
Problem Details: If a per-cpu work item hogs the CPU, it can prevent other work items from starting through concurrency management. A per-cpu workqueue which intends to host such CPU-hogging work items can choose to not participate in concurrency management by setting %WQ_CPU_INTENSIVE; however, this can be error-prone...
```diff diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 9e5bab29685f..1f2185cf2f0a 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -6931,6 +6931,13 @@ it can be updated at runti...
6fb45762691d12d9812c41d20b2f5db1412047ae
Analyze and fix the following issue in the Linux kernel code: arm64: dts: qcom: ipq9574: Update the size of GICC & GICV regions
Problem Details: Update the size of GICC and GICV regions to 8kB as the GICC_DIR & GICV_DIR registers lie in the second 4kB region. Also, add target CPU encoding. Fixes: 97cb36ff52a1 ("arm64: dts: qcom: Add ipq9574 SoC and AL02 board support") Signed-off-by: Devi Priya <quic_devipriy@quicinc.com> Signed-off-by: Bjorn ...
```diff diff --git a/arch/arm64/boot/dts/qcom/ipq9574.dtsi b/arch/arm64/boot/dts/qcom/ipq9574.dtsi index b65d94887e1a..40a266106c80 100644 --- a/arch/arm64/boot/dts/qcom/ipq9574.dtsi +++ b/arch/arm64/boot/dts/qcom/ipq9574.dtsi @@ -197,14 +197,14 @@ intc: interrupt-controller@b000000 { compatible = "qcom,msm-qgic...
a14da6144d16ef27e3022835fa282a3740b8ad7b
Analyze and fix the following issue in the Linux kernel code: arm64: dts: qcom: sm6375-pdx225: Fix remoteproc firmware paths
Problem Details: They were previously missing the SoC name. Fix it. Fixes: a2ad207c412b ("arm64: dts: qcom: sm6375-pdx225: Enable ADSP & CDSP") Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20230517-topic-murray-fwname-v1-1...
```diff diff --git a/arch/arm64/boot/dts/qcom/sm6375-sony-xperia-murray-pdx225.dts b/arch/arm64/boot/dts/qcom/sm6375-sony-xperia-murray-pdx225.dts index 8220e6f44117..b2f1bb1d58e9 100644 --- a/arch/arm64/boot/dts/qcom/sm6375-sony-xperia-murray-pdx225.dts +++ b/arch/arm64/boot/dts/qcom/sm6375-sony-xperia-murray-pdx225.d...
925a80af6106a55fa6bcfedc5bd2f02b0b835495
Analyze and fix the following issue in the Linux kernel code: ARM: dts: qcom: add missing cache properties
Problem Details: Add required cache-unified properties to fix warnings like: qcom-ipq4019-ap.dk01.1-c1.dtb: l2-cache: 'cache-unified' is a required property Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org> Signed-off-by: Bjorn Andersson <ander...
```diff diff --git a/arch/arm/boot/dts/qcom-apq8064.dtsi b/arch/arm/boot/dts/qcom-apq8064.dtsi index 672b246afbba..d2289205ff81 100644 --- a/arch/arm/boot/dts/qcom-apq8064.dtsi +++ b/arch/arm/boot/dts/qcom-apq8064.dtsi @@ -83,6 +83,7 @@ L2: l2-cache { compatible = "cache"; cache-level = <2>; + cache-unifie...
9c6e72fb2058dc06da9d278c4bff94430677d48a
Analyze and fix the following issue in the Linux kernel code: arm64: dts: qcom: add missing cache properties
Problem Details: Add required cache-level and cache-unified properties to fix warnings like: qdu1000-idp.dtb: l3-cache: 'cache-unified' is a required property qdu1000-idp.dtb: l2-cache: 'cache-level' is a required property Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Konrad Dyb...
```diff diff --git a/arch/arm64/boot/dts/qcom/ipq5332.dtsi b/arch/arm64/boot/dts/qcom/ipq5332.dtsi index 12e0e179e139..af4d97143bcf 100644 --- a/arch/arm64/boot/dts/qcom/ipq5332.dtsi +++ b/arch/arm64/boot/dts/qcom/ipq5332.dtsi @@ -73,6 +73,7 @@ L2_0: l2-cache { compatible = "cache"; cache-level = <2>; + ca...
f34fbb71ce9eb0936c0b56fe8b3866d76618c433
Analyze and fix the following issue in the Linux kernel code: arm64: dts: qcom: fix indentation
Problem Details: Correct indentation to use only tabs. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20230416101134.95686-1-krzysztof.kozlowski@linaro.org
```diff diff --git a/arch/arm64/boot/dts/qcom/msm8996.dtsi b/arch/arm64/boot/dts/qcom/msm8996.dtsi index 2b35cb3f5292..2c5780008c84 100644 --- a/arch/arm64/boot/dts/qcom/msm8996.dtsi +++ b/arch/arm64/boot/dts/qcom/msm8996.dtsi @@ -53,8 +53,8 @@ #cooling-cells = <2>; next-level-cache = <&L2_0>; L2_0: l2-cach...
fae7d907a75eaad4bfb17e7990e357938c5b1351
Analyze and fix the following issue in the Linux kernel code: arm64: dts: qcom: sm8250-xiaomi-elish-csot: fix panel compatible
Problem Details: The bindings expect "novatek,nt36523" fallback in the panel compatible: sm8250-xiaomi-elish-csot.dtb: panel@0: compatible: ['xiaomi,elish-csot-nt36523'] is too short Fixes: 8a786036c7b6 ("arm64: dts: qcom: sm8250-xiaomi-elish-csot: Add Xiaomi Mi Pad 5 Pro CSOT variant") Signed-off-by: Krzysztof Koz...
```diff diff --git a/arch/arm64/boot/dts/qcom/sm8250-xiaomi-elish-csot.dts b/arch/arm64/boot/dts/qcom/sm8250-xiaomi-elish-csot.dts index a4d5341495cf..4cffe9c703df 100644 --- a/arch/arm64/boot/dts/qcom/sm8250-xiaomi-elish-csot.dts +++ b/arch/arm64/boot/dts/qcom/sm8250-xiaomi-elish-csot.dts @@ -13,6 +13,6 @@ }; &dis...
0c7433dd81b5e771ef222f340fef03501131761b
Analyze and fix the following issue in the Linux kernel code: arm64: dts: qcom: sm8250-xiaomi-elish-boe: fix panel compatible
Problem Details: The bindings expect "novatek,nt36523" fallback in the panel compatible: sm8250-xiaomi-elish-boe.dtb: panel@0: compatible: ['xiaomi,elish-boe-nt36523'] is too shor Fixes: 51c4c2bd6f31 ("arm64: dts: qcom: sm8250-xiaomi-elish-boe: Add mdss and dsi panel") Signed-off-by: Krzysztof Kozlowski <krzysztof....
```diff diff --git a/arch/arm64/boot/dts/qcom/sm8250-xiaomi-elish-boe.dts b/arch/arm64/boot/dts/qcom/sm8250-xiaomi-elish-boe.dts index 8b2ae39950ff..de6101ddebe7 100644 --- a/arch/arm64/boot/dts/qcom/sm8250-xiaomi-elish-boe.dts +++ b/arch/arm64/boot/dts/qcom/sm8250-xiaomi-elish-boe.dts @@ -13,6 +13,6 @@ }; &display...
2b967894f80aac2c7421eb545c32ed995f8d9877
Analyze and fix the following issue in the Linux kernel code: arm64: dts: qcom: sa8775p: mark the UFS controller as dma-coherent
Problem Details: The UFS controller is cache coherent, so mark it as such in the dtsi. Fixes: be543efeee17 ("arm64: dts: qcom: sa8775p: add UFS nodes") Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Suggested-by: Manivannan Sadhasivam <mani@kernel.org> Reviewed-by: Manivannan Sadhasivam <mani@kern...
```diff diff --git a/arch/arm64/boot/dts/qcom/sa8775p.dtsi b/arch/arm64/boot/dts/qcom/sa8775p.dtsi index a71b745f7a34..07aeb8a8e97b 100644 --- a/arch/arm64/boot/dts/qcom/sa8775p.dtsi +++ b/arch/arm64/boot/dts/qcom/sa8775p.dtsi @@ -605,6 +605,7 @@ power-domains = <&gcc UFS_PHY_GDSC>; required-opps = <&rpmhpd_opp...
6f22587c915c34a4ee02c314cfdb708b11b5eafb
Analyze and fix the following issue in the Linux kernel code: drm/i915/guc/slpc: Disable rps_boost debugfs
Problem Details: rps_boost debugfs shows host turbo related info. This is not valid when SLPC is enabled. guc_slpc_info already shows the number of boosts. Add num_waiters there as well and disable rps_boost when SLPC is enabled. v2: Replace Bug with Link to resolve checkpatch warning Link: https://gitlab.freedesktop...
```diff diff --git a/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c b/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c index 80dbbef86b1d..357e2f865727 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c +++ b/drivers/gpu/drm/i915/gt/intel_gt_pm_debugfs.c @@ -539,7 +539,10 @@ static bool rps_eval(void *data) { st...
158fb07ba6e77a21f46c3e9c5be44ebd8c4dd2cc
Analyze and fix the following issue in the Linux kernel code: MAINTAINERS: repair pattern in DIALOG SEMICONDUCTOR DRIVERS
Problem Details: Commit 361104b05684c ("dt-bindings: mfd: Convert da9063 to yaml") converts da9063.txt to dlg,da9063.yaml and adds a new file pattern in MAINTAINERS. Unfortunately, the file pattern matches da90*.yaml, but the yaml file is prefixed with dlg,da90. Hence, ./scripts/get_maintainer.pl --self-test=patterns...
```diff diff --git a/MAINTAINERS b/MAINTAINERS index 7e0b87d5aa2e..21d66f969602 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -6019,7 +6019,7 @@ W: http://www.dialog-semiconductor.com/products F: Documentation/devicetree/bindings/input/da90??-onkey.txt F: Documentation/devicetree/bindings/input/dlg,da72??.txt F: Doc...
9b5a04ac3ad9898c4745cba46ea26de74ba56a8e
Analyze and fix the following issue in the Linux kernel code: nilfs2: fix use-after-free bug of nilfs_root in nilfs_evict_inode()
Problem Details: During unmount process of nilfs2, nothing holds nilfs_root structure after nilfs2 detaches its writer in nilfs_detach_log_writer(). However, since nilfs_evict_inode() uses nilfs_root for some cleanup operations, it may cause use-after-free read if inodes are left in "garbage_list" and released by nilf...
```diff diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c index 1310d2d5feb3..a8ce522ac747 100644 --- a/fs/nilfs2/inode.c +++ b/fs/nilfs2/inode.c @@ -917,6 +917,7 @@ void nilfs_evict_inode(struct inode *inode) struct nilfs_transaction_info ti; struct super_block *sb = inode->i_sb; struct nilfs_inode_info *ii = N...
04fc7816089c5a32c29a04ec94b998e219dfb946
Analyze and fix the following issue in the Linux kernel code: mm: fix zswap writeback race condition
Problem Details: The zswap writeback mechanism can cause a race condition resulting in memory corruption, where a swapped out page gets swapped in with data that was written to a different page. The race unfolds like this: 1. a page with data A and swap offset X is stored in zswap 2. page A is removed off the LRU by z...
```diff diff --git a/mm/zswap.c b/mm/zswap.c index e1e621d0b6a0..59da2a415fbb 100644 --- a/mm/zswap.c +++ b/mm/zswap.c @@ -1020,6 +1020,22 @@ static int zswap_writeback_entry(struct zpool *pool, unsigned long handle) goto fail; case ZSWAP_SWAPCACHE_NEW: /* page is locked */ + /* + * Having a local reference t...
7581495ac82d6cb073609284c7f7186a48021d1e
Analyze and fix the following issue in the Linux kernel code: mm: kfence: fix false positives on big endian
Problem Details: Since commit 1ba3cbf3ec3b ("mm: kfence: improve the performance of __kfence_alloc() and __kfence_free()"), kfence reports failures in random places at boot on big endian machines. The problem is that the new KFENCE_CANARY_PATTERN_U64 encodes the address of each byte in its value, so it needs to be byt...
```diff diff --git a/mm/kfence/kfence.h b/mm/kfence/kfence.h index 2aafc46a4aaf..392fb273e7bd 100644 --- a/mm/kfence/kfence.h +++ b/mm/kfence/kfence.h @@ -29,7 +29,7 @@ * canary of every 8 bytes is the same. 64-bit memory can be filled and checked * at a time instead of byte by byte to improve performance. */ -#d...
d461aac924b937bcb4fd0ca1242b3ef6868ecddd
Analyze and fix the following issue in the Linux kernel code: zsmalloc: move LRU update from zs_map_object() to zs_malloc()
Problem Details: Under memory pressure, we sometimes observe the following crash: [ 5694.832838] ------------[ cut here ]------------ [ 5694.842093] list_del corruption, ffff888014b6a448->next is LIST_POISON1 (dead000000000100) [ 5694.858677] WARNING: CPU: 33 PID: 418824 at lib/list_debug.c:47 __list_del_entry_valid+0...
```diff diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c index 44ddaf5d601e..02f7f414aade 100644 --- a/mm/zsmalloc.c +++ b/mm/zsmalloc.c @@ -1331,31 +1331,6 @@ void *zs_map_object(struct zs_pool *pool, unsigned long handle, obj_to_location(obj, &page, &obj_idx); zspage = get_zspage(page); -#ifdef CONFIG_ZPOOL - /* - *...
26e239b37ebdfd189a2e6f94d3407e70313348bc
Analyze and fix the following issue in the Linux kernel code: mm: shrinkers: fix race condition on debugfs cleanup
Problem Details: When something registers and unregisters many shrinkers, such as: for x in $(seq 10000); do unshare -Ui true; done Sometimes the following error is printed to the kernel log: debugfs: Directory '...' with parent 'shrinker' already present! This occurs since commit badc28d4924b ("mm: shrinkers...
```diff diff --git a/include/linux/shrinker.h b/include/linux/shrinker.h index 7bde8e1c228a..224293b2dd06 100644 --- a/include/linux/shrinker.h +++ b/include/linux/shrinker.h @@ -107,7 +107,10 @@ extern void synchronize_shrinkers(void); #ifdef CONFIG_SHRINKER_DEBUG extern int shrinker_debugfs_add(struct shrinker *s...
0257d9908d38c0b1669af4bb1bc4dbca1f273fe6
Analyze and fix the following issue in the Linux kernel code: maple_tree: make maple state reusable after mas_empty_area()
Problem Details: Make mas->min and mas->max point to a node range instead of a leaf entry range. This allows mas to still be usable after mas_empty_area() returns. Users would get unexpected results from other operations on the maple state after calling the affected function. For example, x86 MAP_32BIT mmap() acts as...
```diff diff --git a/lib/maple_tree.c b/lib/maple_tree.c index 110a36479dce..8ebc43d4cc8c 100644 --- a/lib/maple_tree.c +++ b/lib/maple_tree.c @@ -5317,15 +5317,9 @@ int mas_empty_area(struct ma_state *mas, unsigned long min, mt = mte_node_type(mas->node); pivots = ma_pivots(mas_mn(mas), mt); - if (offset) - mas...
571a2a50a8fc546145ffd3bf673547e9fe128ed2
Analyze and fix the following issue in the Linux kernel code: rethook, fprobe: do not trace rethook related functions
Problem Details: These functions are already marked as NOKPROBE to prevent recursion and we have the same reason to blacklist them if rethook is used with fprobe, since they are beyond the recursion-free region ftrace can guard. Link: https://lore.kernel.org/all/20230517034510.15639-5-zegao@tencent.com/ Fixes: f3a112...
```diff diff --git a/arch/riscv/kernel/probes/Makefile b/arch/riscv/kernel/probes/Makefile index c40139e9ca47..8265ff497977 100644 --- a/arch/riscv/kernel/probes/Makefile +++ b/arch/riscv/kernel/probes/Makefile @@ -4,3 +4,5 @@ obj-$(CONFIG_RETHOOK) += rethook.o rethook_trampoline.o obj-$(CONFIG_KPROBES_ON_FTRACE) += ...
2752741080f84f9b2fc93fa92735315d10a415bf
Analyze and fix the following issue in the Linux kernel code: fprobe: add recursion detection in fprobe_exit_handler
Problem Details: fprobe_hander and fprobe_kprobe_handler has guarded ftrace recursion detection but fprobe_exit_handler has not, which possibly introduce recursive calls if the fprobe exit callback calls any traceable functions. Checking in fprobe_hander or fprobe_kprobe_handler is not enough and misses this case. So ...
```diff diff --git a/kernel/trace/fprobe.c b/kernel/trace/fprobe.c index 7a692c02f787..18d36842faf5 100644 --- a/kernel/trace/fprobe.c +++ b/kernel/trace/fprobe.c @@ -17,6 +17,7 @@ struct fprobe_rethook_node { struct rethook_node node; unsigned long entry_ip; + unsigned long entry_parent_ip; char data[]; }; @...
3cc4e2c5fbae84e5033723fb7e350bc6c164e3a2
Analyze and fix the following issue in the Linux kernel code: fprobe: make fprobe_kprobe_handler recursion free
Problem Details: Current implementation calls kprobe related functions before doing ftrace recursion check in fprobe_kprobe_handler, which opens door to kernel crash due to stack recursion if preempt_count_{add, sub} is traceable in kprobe_busy_{begin, end}. Things goes like this without this patch quoted from Steven:...
```diff diff --git a/kernel/trace/fprobe.c b/kernel/trace/fprobe.c index 293184227394..7a692c02f787 100644 --- a/kernel/trace/fprobe.c +++ b/kernel/trace/fprobe.c @@ -20,30 +20,22 @@ struct fprobe_rethook_node { char data[]; }; -static void fprobe_handler(unsigned long ip, unsigned long parent_ip, - struct ft...
be243bacfb25f5219f2396d787408e8cf1301dd1
Analyze and fix the following issue in the Linux kernel code: rethook: use preempt_{disable, enable}_notrace in rethook_trampoline_handler
Problem Details: This patch replaces preempt_{disable, enable} with its corresponding notrace version in rethook_trampoline_handler so no worries about stack recursion or overflow introduced by preempt_count_{add, sub} under fprobe + rethook context. Link: https://lore.kernel.org/all/20230517034510.15639-2-zegao@tence...
```diff diff --git a/kernel/trace/rethook.c b/kernel/trace/rethook.c index 32c3dfdb4d6a..60f6cb2b486b 100644 --- a/kernel/trace/rethook.c +++ b/kernel/trace/rethook.c @@ -288,7 +288,7 @@ unsigned long rethook_trampoline_handler(struct pt_regs *regs, * These loops must be protected from rethook_free_rcu() because tho...
9fe0731bc345230e8ce125056b9407c63960f74e
Analyze and fix the following issue in the Linux kernel code: ALSA: emu10k1: remove runtime 64-bit divisions
Problem Details: 32-bit platforms don't like these. As we're actually dealing with constants, factor out the calculations and pass them in as additional arguments. To keep the call sites clean, wrap the actual functions in macros which generate the arguments. Fixes: bb5ceb43b7bf ("ALSA: emu10k1: fix non-zero mixer con...
```diff diff --git a/sound/pci/emu10k1/emufx.c b/sound/pci/emu10k1/emufx.c index f64b2b4eb348..e9855d37fa5c 100644 --- a/sound/pci/emu10k1/emufx.c +++ b/sound/pci/emu10k1/emufx.c @@ -1144,9 +1144,11 @@ static int snd_emu10k1_ipcm_peek(struct snd_emu10k1 *emu, #define SND_EMU10K1_PLAYBACK_CHANNELS 8 #define SND_EMU10K...
56518a603fd2bf74762d176ac980572db84a3e14
Analyze and fix the following issue in the Linux kernel code: RDMA/hns: Modify the value of long message loopback slice
Problem Details: Long message loopback slice is used for achieving traffic balance between QPs. It prevents the problem that QPs with large traffic occupying the hardware pipeline for a long time and QPs with small traffic cannot be scheduled. Currently, its maximum value is set to 16K, which means only after a QP sen...
```diff diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c index 3a1c90406ed9..d4c6b9bc0a4e 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -4583,11 +4583,9 @@ static int modify_qp_init_to_rtr(struct ib_qp *ibq...
7f3969b14f356dd65fa95b3528eb05c32e68bc06
Analyze and fix the following issue in the Linux kernel code: RDMA/hns: Fix base address table allocation
Problem Details: For hns, the specification of an entry like resource (E.g. WQE/CQE/EQE) depends on BT page size, buf page size and hopnum. For user mode, the buf page size depends on UMEM. Therefore, the actual specification is controlled by BT page size and hopnum. The current BT page size and hopnum are obtained fr...
```diff diff --git a/drivers/infiniband/hw/hns/hns_roce_mr.c b/drivers/infiniband/hw/hns/hns_roce_mr.c index 37a5cf62f88b..14376490ac22 100644 --- a/drivers/infiniband/hw/hns/hns_roce_mr.c +++ b/drivers/infiniband/hw/hns/hns_roce_mr.c @@ -33,6 +33,7 @@ #include <linux/vmalloc.h> #include <rdma/ib_umem.h> +#include ...
58caa2a51ad4fd21763696cc6c4defc9fc1b4b4f
Analyze and fix the following issue in the Linux kernel code: RDMA/hns: Fix timeout attr in query qp for HIP08
Problem Details: On HIP08, the queried timeout attr is different from the timeout attr configured by the user. It is found by rdma-core testcase test_rdmacm_async_traffic: ====================================================================== FAIL: test_rdmacm_async_traffic (tests.test_rdmacm.CMTestCase) ------------...
```diff diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c index 84f1167de1d9..3a1c90406ed9 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -5012,7 +5012,6 @@ static int hns_roce_v2_set_abs_fields(struct ib_qp ...
69d6b37695c1f2320cfa330e1e1636d50dd5040a
Analyze and fix the following issue in the Linux kernel code: ACPI: x86: Add skip i2c clients quirk for Nextbook Ares 8A
Problem Details: The Nextbook Ares 8A is a x86 ACPI tablet which ships with Android x86 as factory OS. Its DSDT contains a bunch of I2C devices which are not actually there (the Android x86 kernel fork ignores I2C devices described in the DSDT). On this specific model this just not cause resource conflicts, one of the...
```diff diff --git a/drivers/acpi/x86/utils.c b/drivers/acpi/x86/utils.c index 9c2d6f35f88a..4cfee2da0675 100644 --- a/drivers/acpi/x86/utils.c +++ b/drivers/acpi/x86/utils.c @@ -365,7 +365,7 @@ static const struct dmi_system_id acpi_quirk_skip_dmi_ids[] = { ACPI_QUIRK_SKIP_ACPI_AC_AND_BATTERY), }, { - /* Ne...
36a6418bb125944838b91a33eddca4064a5eb610
Analyze and fix the following issue in the Linux kernel code: Revert "ARM: dts: stm32: add CAN support on stm32f746"
Problem Details: This reverts commit 0920ccdf41e3078a4dd2567eb905ea154bc826e6. The commit 0920ccdf41e3 ("ARM: dts: stm32: add CAN support on stm32f746") depends on the patch "dt-bindings: mfd: stm32f7: add binding definition for CAN3" [1], which is not in net/main, yet. This results in a parsing error of "stm32f746.dt...
```diff diff --git a/arch/arm/boot/dts/stm32f746.dtsi b/arch/arm/boot/dts/stm32f746.dtsi index 973698bc9ef4..dc868e6da40e 100644 --- a/arch/arm/boot/dts/stm32f746.dtsi +++ b/arch/arm/boot/dts/stm32f746.dtsi @@ -257,23 +257,6 @@ status = "disabled"; }; - can3: can@40003400 { - compatible = "st,stm32f4-bxcan"...
59a556aebc43dded08535fe97d94ca3f657915e4
Analyze and fix the following issue in the Linux kernel code: SMB3: drop reference to cfile before sending oplock break
Problem Details: In cifs_oplock_break function we drop reference to a cfile at the end of function, due to which close command goes on wire after lease break acknowledgment even if file is already closed by application but we had deferred the handle close. If other client with limited file shareaccess waiting on lease ...
```diff diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 414685c5d530..5f8fd20951af 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -424,8 +424,8 @@ struct smb_version_operations { /* check for STATUS_NETWORK_SESSION_EXPIRED */ bool (*is_session_expired)(char *); /* send oplock break respons...
47592fa8eb03742048b096b4696ec133384c45eb
Analyze and fix the following issue in the Linux kernel code: SMB3: Close all deferred handles of inode in case of handle lease break
Problem Details: Oplock break may occur for different file handle than the deferred handle. Check for inode deferred closes list, if it's not empty then close all the deferred handles of inode because we should not cache handles if we dont have handle lease. Eg: If openfilelist has one deferred file handle and another...
```diff diff --git a/fs/cifs/file.c b/fs/cifs/file.c index c5fcefdfd797..e7868e47c61c 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -4882,8 +4882,6 @@ void cifs_oplock_break(struct work_struct *work) struct TCP_Server_Info *server = tcon->ses->server; int rc = 0; bool purge_cache = false; - struct cifs_defe...
ce0b15d11ad837fbacc5356941712218e38a0a83
Analyze and fix the following issue in the Linux kernel code: x86/mm: Avoid incomplete Global INVLPG flushes
Problem Details: The INVLPG instruction is used to invalidate TLB entries for a specified virtual address. When PCIDs are enabled, INVLPG is supposed to invalidate TLB entries for the specified address for both the current PCID *and* Global entries. (Note: Only kernel mappings set Global=1.) Unfortunately, some INVL...
```diff diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index 3cdac0f0055d..8192452d1d2d 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -9,6 +9,7 @@ #include <linux/sched/task.h> #include <asm/set_memory.h> +#include <asm/cpu_device_id.h> #include <asm/e820/api.h> #include <asm/init.h> #include...
e36ca2fad6bb4ef0603bdb5556578e9082fe0056
Analyze and fix the following issue in the Linux kernel code: iommu/arm-smmu-qcom: Fix missing adreno_smmu's
Problem Details: When the special handling of qcom,adreno-smmu was moved into qcom_smmu_create(), it was overlooked that we didn't have all the required entries in qcom_smmu_impl_of_match. So we stopped getting adreno_smmu_priv on sc7180, breaking per-process pgtables. Fixes: 30b912a03d91 ("iommu/arm-smmu-qcom: Move ...
```diff diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c index d1b296b95c86..ec743a9ec67a 100644 --- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c @@ -503,6 +503,7 @@ static const struct of_device_id __maybe_unused qcom_...
f47d6140b7a4c858d82d263e7577ff6fb5279a9c
Analyze and fix the following issue in the Linux kernel code: drm/bridge: tc358767: Switch to devm MIPI-DSI helpers
Problem Details: DSI device registering and attaching needs to be undone upon deregistration. This fixes module unload/load. Fixes: bbfd3190b656 ("drm/bridge: tc358767: Add DSI-to-DPI mode support") Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com> Reviewed-by: Robert Foss <rfoss@kernel.org> Signed-off-...
```diff diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c index 91f7cb56a654..d6349af4f1b6 100644 --- a/drivers/gpu/drm/bridge/tc358767.c +++ b/drivers/gpu/drm/bridge/tc358767.c @@ -1890,7 +1890,7 @@ static int tc_mipi_dsi_host_attach(struct tc_data *tc) if (dsi_lanes < 0) return d...
1fc710f06aa8f33abab4fdded9463eefdff7d390
Analyze and fix the following issue in the Linux kernel code: ALSA: emu10k1: make E-MU I/O routing init data-driven
Problem Details: ... and move it to the mixer init, as it's logically part of it. As a side effect, this fixes the initial values of the input destination mixer controls, which would have previously remained at "Silent" despite different defaults. This didn't really matter, though, as ALSA state restoration would hide...
```diff diff --git a/sound/pci/emu10k1/emu10k1_main.c b/sound/pci/emu10k1/emu10k1_main.c index 793ae8797172..6a3476de74e6 100644 --- a/sound/pci/emu10k1/emu10k1_main.c +++ b/sound/pci/emu10k1/emu10k1_main.c @@ -796,7 +796,6 @@ static void emu1010_firmware_work(struct work_struct *work) */ static int snd_emu10k1_emu1...
cc766807a208bfa06c204be784ec099fb25c87a4
Analyze and fix the following issue in the Linux kernel code: ALSA: emu10k1: fix return value of snd_emu1010_dac_pads_put()
Problem Details: It returned zero even if the value had changed. Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de> Link: https://lore.kernel.org/r/20230516093612.3536508-6-oswald.buddenhagen@gmx.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
```diff diff --git a/sound/pci/emu10k1/emumixer.c b/sound/pci/emu10k1/emumixer.c index c5ebec52c8cf..ef05d4f3316c 100644 --- a/sound/pci/emu10k1/emumixer.c +++ b/sound/pci/emu10k1/emumixer.c @@ -559,18 +559,21 @@ static int snd_emu1010_dac_pads_put(struct snd_kcontrol *kcontrol, struct snd_ct struct snd_emu10k1 *emu ...
35a60d1edff4dec9a31862a3515676cd0fafe4e4
Analyze and fix the following issue in the Linux kernel code: ALSA: emu10k1: rewire {en,dis}abling interrupts for PCM playback
Problem Details: We now enable ints even before triggering, and disable them only after stopping - otherwise there is a race condition we may plausibly run into when we pause/resume near the end of the buffer. Updating the epcm->running flag is moved the same way, as it affects the *_pointer() functions, which are cal...
```diff diff --git a/sound/pci/emu10k1/emupcm.c b/sound/pci/emu10k1/emupcm.c index 2b6f5d2bbb3e..7b0ab4e02cfd 100644 --- a/sound/pci/emu10k1/emupcm.c +++ b/sound/pci/emu10k1/emupcm.c @@ -605,7 +605,9 @@ static void snd_emu10k1_playback_prepare_voice(struct snd_emu10k1 *emu, struct s snd_emu10k1_ptr_write(emu, CVCF, v...
24cdfcb4ccbb75d85d70460a69f3105fda33d385
Analyze and fix the following issue in the Linux kernel code: ALSA: compat_ioctl: use correct snd_ctl_elem_type_t type
Problem Details: SNDRV_CTL_ELEM_TYPE_* are type of snd_ctl_elem_type_t, we have to __force cast them to int when comparing them with int to fix the following sparse warnings. sound/core/control_compat.c:203:14: sparse: warning: restricted snd_ctl_elem_type_t degrades to integer sound/core/control_compat.c:205:14: spar...
```diff diff --git a/sound/core/control_compat.c b/sound/core/control_compat.c index d8a86d1a99d6..9cae5d74335c 100644 --- a/sound/core/control_compat.c +++ b/sound/core/control_compat.c @@ -197,7 +197,7 @@ static int get_ctl_type(struct snd_card *card, struct snd_ctl_elem_id *id, return err; } -static int get_ele...
ccecefa4f89971e34745abbffdaf4d2c3fb2f457
Analyze and fix the following issue in the Linux kernel code: ALSA: cs46xx: mark snd_cs46xx_download_image as static
Problem Details: snd_cs46xx_download_image() was originally called from dsp_spos.c, but is now local to cs46xx_lib.c. Mark it as 'static' to avoid a warning about it lacking a declaration, and '__maybe_unused' to avoid a warning about it being unused when CONFIG_SND_CS46XX_NEW_DSP is disabled: sound/pci/cs46xx/cs46xx_...
```diff diff --git a/sound/pci/cs46xx/cs46xx_lib.c b/sound/pci/cs46xx/cs46xx_lib.c index 62f45847b351..7d882b33d45e 100644 --- a/sound/pci/cs46xx/cs46xx_lib.c +++ b/sound/pci/cs46xx/cs46xx_lib.c @@ -531,7 +531,7 @@ static int load_firmware(struct snd_cs46xx *chip) return err; } -int snd_cs46xx_download_image(struc...
effcf62416240e5ec0eded0ea2644c48d2c7c9f1
Analyze and fix the following issue in the Linux kernel code: selftests/bpf: Make bpf_dynptr_is_rdonly() prototyype consistent with kernel
Problem Details: Currently kernel kfunc bpf_dynptr_is_rdonly() has prototype ... __bpf_kfunc bool bpf_dynptr_is_rdonly(struct bpf_dynptr_kern *ptr) ... while selftests bpf_kfuncs.h has: extern int bpf_dynptr_is_rdonly(const struct bpf_dynptr *ptr) __ksym; Such a mismatch might cause problems although currently ...
```diff diff --git a/tools/testing/selftests/bpf/bpf_kfuncs.h b/tools/testing/selftests/bpf/bpf_kfuncs.h index 821c25b7d0df..642dda0e758a 100644 --- a/tools/testing/selftests/bpf/bpf_kfuncs.h +++ b/tools/testing/selftests/bpf/bpf_kfuncs.h @@ -37,7 +37,7 @@ extern void *bpf_dynptr_slice_rdwr(const struct bpf_dynptr *ptr...
12852f8e0f70d9a5263e2834c5483268b08b5e9c
Analyze and fix the following issue in the Linux kernel code: selftests/bpf: Fix dynptr/test_dynptr_is_null
Problem Details: With latest llvm17, dynptr/test_dynptr_is_null subtest failed in my testing VM. The failure log looks like below: All error logs: tester_init:PASS:tester_log_buf 0 nsec process_subtest:PASS:obj_open_mem 0 nsec process_subtest:PASS:Can't alloc specs array 0 nsec verify_success:PASS:dynptr_suc...
```diff diff --git a/tools/testing/selftests/bpf/bpf_kfuncs.h b/tools/testing/selftests/bpf/bpf_kfuncs.h index f3c41f8902a0..821c25b7d0df 100644 --- a/tools/testing/selftests/bpf/bpf_kfuncs.h +++ b/tools/testing/selftests/bpf/bpf_kfuncs.h @@ -36,7 +36,7 @@ extern void *bpf_dynptr_slice_rdwr(const struct bpf_dynptr *ptr...
2eb94dd56a4a4e3fe286def3e2ba207804a37345
Analyze and fix the following issue in the Linux kernel code: nvme: do not let the user delete a ctrl before a complete initialization
Problem Details: If a userspace application performes a "delete_controller" command early during the ctrl initialization, the delete operation may race against the init code and the kernel will crash. nvme nvme5: Connect command failed: host path error nvme nvme5: failed to connect queue: 0 ret=880 PF: supervisor writ...
```diff diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index 6c1e7d6709e0..22e9e90aa671 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -3574,6 +3574,9 @@ static ssize_t nvme_sysfs_delete(struct device *dev, { struct nvme_ctrl *ctrl = dev_get_drvdata(dev); + if (!test_bit(...
f04a32b2c5b539e3c097cb5c7c1df12a8f4a0cf0
Analyze and fix the following issue in the Linux kernel code: selftests/bpf: Do not use sign-file as testcase
Problem Details: The sign-file utility (from scripts/) is used in prog_tests/verify_pkcs7_sig.c, but the utility should not be called as a test. Executing this utility produces the following error: selftests: /linux/tools/testing/selftests/bpf: urandom_read ok 16 selftests: /linux/tools/testing/selftests/bpf: uran...
```diff diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index c49e5403ad0e..cd2426cca3d0 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -88,8 +88,7 @@ TEST_GEN_PROGS_EXTENDED = test_sock_addr test_skb_cgroup_id_user \ xskxceiver...
3a7bb21b6f49b4d1695d4ba8ff31e9619cbcebe3
Analyze and fix the following issue in the Linux kernel code: fs: don't call posix_acl_listxattr in generic_listxattr
Problem Details: Commit f2620f166e2a caused the kernel to start emitting POSIX ACL xattrs for NFSv4 inodes, which it doesn't support. The only other user of generic_listxattr is HFS (classic) and it doesn't support POSIX ACLs either. Fixes: f2620f166e2a xattr: simplify listxattr helpers Reported-by: Ondrej Valousek <o...
```diff diff --git a/fs/xattr.c b/fs/xattr.c index fcf67d80d7f9..e7bbb7f57557 100644 --- a/fs/xattr.c +++ b/fs/xattr.c @@ -985,9 +985,16 @@ int xattr_list_one(char **buffer, ssize_t *remaining_size, const char *name) return 0; } -/* +/** + * generic_listxattr - run through a dentry's xattr list() operations + * @d...
f15afbd34d8fadbd375f1212e97837e32bc170cc
Analyze and fix the following issue in the Linux kernel code: fs: fix undefined behavior in bit shift for SB_NOUSER
Problem Details: Shifting signed 32-bit value by 31 bits is undefined, so changing significant bit to unsigned. It was spotted by UBSAN. So let's just fix this by using the BIT() helper for all SB_* flags. Fixes: e462ec50cb5f ("VFS: Differentiate mount flags (MS_*) from internal superblock flags") Signed-off-by: Hao ...
```diff diff --git a/include/linux/fs.h b/include/linux/fs.h index 21a981680856..133f0640fb24 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1076,29 +1076,29 @@ extern int send_sigurg(struct fown_struct *fown); * sb->s_flags. Note that these mirror the equivalent MS_* flags where * represented in bot...
2862a2fdfae875888e3c1c3634e3422e01d98147
Analyze and fix the following issue in the Linux kernel code: s390/qdio: fix do_sqbs() inline assembly constraint
Problem Details: Use "a" constraint instead of "d" constraint to pass the state parameter to the do_sqbs() inline assembly. This prevents that general purpose register zero is used for the state parameter. If the compiler would select general purpose register zero this would be problematic for the used instruction in ...
```diff diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h index 5ea6249d8180..641f0dbb65a9 100644 --- a/drivers/s390/cio/qdio.h +++ b/drivers/s390/cio/qdio.h @@ -95,7 +95,7 @@ static inline int do_sqbs(u64 token, unsigned char state, int queue, " lgr 1,%[token]\n" " .insn rsy,0xeb000000008a,%[qs],%[c...
86634ba3dfc789497805da3d5774fcc1953cbe41
Analyze and fix the following issue in the Linux kernel code: drm/i915: tweak language in fastset pipe config compare logging
Problem Details: The "fastset mismatch" debug logging has been slightly confusing, leading people to believe some error happened. Change it to the more informative "fastset requirement not met", and add a final message about this leading to full modeset. Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by:...
```diff diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index b3bac5dae20f..09320e14d75c 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -4865,7 +4865,7 @@ pipe_config_infoframe_mismatch(struct drm_i...
61ae320a29b0540c16931816299eb86bf2b66c08
Analyze and fix the following issue in the Linux kernel code: netfilter: nft_set_rbtree: fix null deref on element insertion
Problem Details: There is no guarantee that rb_prev() will not return NULL in nft_rbtree_gc_elem(): general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f] nft_add_set_elem+0x14b0/0x2990 nf_ta...
```diff diff --git a/net/netfilter/nft_set_rbtree.c b/net/netfilter/nft_set_rbtree.c index 19ea4d3c3553..2f114aa10f1a 100644 --- a/net/netfilter/nft_set_rbtree.c +++ b/net/netfilter/nft_set_rbtree.c @@ -221,7 +221,7 @@ static int nft_rbtree_gc_elem(const struct nft_set *__set, { struct nft_set *set = (struct nft_set...
e3c361b8acd636f5fe80c02849ca175201edf10c
Analyze and fix the following issue in the Linux kernel code: netfilter: nf_tables: fix nft_trans type confusion
Problem Details: nft_trans_FOO objects all share a common nft_trans base structure, but trailing fields depend on the real object size. Access is only safe after trans->msg_type check. Check for rule type first. Found by code inspection. Fixes: 1a94e38d254b ("netfilter: nf_tables: add NFTA_RULE_ID attribute") Signed...
```diff diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c index 59fb8320ab4d..dc5675962de4 100644 --- a/net/netfilter/nf_tables_api.c +++ b/net/netfilter/nf_tables_api.c @@ -3865,12 +3865,10 @@ static struct nft_rule *nft_rule_lookup_byid(const struct net *net, struct nft_trans *trans; li...