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cc1eeaa335f2d71e8bddf268e3e60d3a3c3a08bc
Analyze and fix the following issue in the Linux kernel code: accel/habanalabs: Fix some kernel-doc comments
Problem Details: Make the description of @regs_range_array and @regs_range_array_size to @user_regs_range_array and @user_regs_range_array_size to silence the warnings: drivers/accel/habanalabs/common/security.c:506: warning: Function parameter or member 'user_regs_range_array' not described in 'hl_init_pb_ranges_sin...
```diff diff --git a/drivers/accel/habanalabs/common/security.c b/drivers/accel/habanalabs/common/security.c index 297e6e44fd0c..dc23ff57c91a 100644 --- a/drivers/accel/habanalabs/common/security.c +++ b/drivers/accel/habanalabs/common/security.c @@ -495,8 +495,8 @@ free_glbl_sec: * @instance_offset: offset between i...
7d212963366e8113d1a8548a35eb9cd5df110dca
Analyze and fix the following issue in the Linux kernel code: accel/habanalabs: fix a static warning - 'dubious: x & !y'
Problem Details: Use a straight forward approach to get a conditional result. Signed-off-by: Koby Elbaz <kelbaz@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
```diff diff --git a/drivers/accel/habanalabs/gaudi2/gaudi2.c b/drivers/accel/habanalabs/gaudi2/gaudi2.c index 058741698d71..240fecfab608 100644 --- a/drivers/accel/habanalabs/gaudi2/gaudi2.c +++ b/drivers/accel/habanalabs/gaudi2/gaudi2.c @@ -4527,7 +4527,7 @@ static int gaudi2_set_tpc_engine_mode(struct hl_device *hde...
4cebb42412248d28df6de01420cfac5654428d41
Analyze and fix the following issue in the Linux kernel code: platform/x86: think-lmi: Correct NVME password handling
Problem Details: NVME passwords identifier have been standardised across the Lenovo systems and now use udrp and adrp (user and admin level) instead of unvp and mnvp. This should apparently be backwards compatible. Fixes: 640a5fa50a42 ("platform/x86: think-lmi: Opcode support") Signed-off-by: Mark Pearson <mpearson-l...
```diff diff --git a/drivers/platform/x86/think-lmi.c b/drivers/platform/x86/think-lmi.c index e3be99b44ce0..71bbe169c77e 100644 --- a/drivers/platform/x86/think-lmi.c +++ b/drivers/platform/x86/think-lmi.c @@ -461,9 +461,9 @@ static ssize_t new_password_store(struct kobject *kobj, sprintf(pwd_type, "mhdp%d", sett...
97eef5983372d7aee6549d644d788fd0c10d2b6e
Analyze and fix the following issue in the Linux kernel code: platform/x86: think-lmi: Correct System password interface
Problem Details: The system password identification was incorrect. This means that if the password was enabled it wouldn't be detected correctly; and setting it would not work. Also updated code to use TLMI_SMP_PWD instead of TLMI_SYS_PWD to be in sync with Lenovo documentation. Fixes: 640a5fa50a42 ("platform/x86: thi...
```diff diff --git a/drivers/platform/x86/think-lmi.c b/drivers/platform/x86/think-lmi.c index 80a5c989db03..f6d1931540f1 100644 --- a/drivers/platform/x86/think-lmi.c +++ b/drivers/platform/x86/think-lmi.c @@ -172,7 +172,7 @@ MODULE_PARM_DESC(debug_support, "Enable debug command support"); #define TLMI_POP_PWD (1 << ...
c41e0121a1221894a1a9c4666156db9e1def4d6c
Analyze and fix the following issue in the Linux kernel code: platform/x86: think-lmi: mutex protection around multiple WMI calls
Problem Details: When an attribute is being changed if the Admin account is enabled, or if a password is being updated then multiple WMI calls are needed. Add mutex protection to ensure no race conditions are introduced. Fixes: b49f72e7f96d ("platform/x86: think-lmi: Certificate authentication support") Signed-off-by:...
```diff diff --git a/drivers/platform/x86/think-lmi.c b/drivers/platform/x86/think-lmi.c index 1138f770149d..6cf77bc26b05 100644 --- a/drivers/platform/x86/think-lmi.c +++ b/drivers/platform/x86/think-lmi.c @@ -14,6 +14,7 @@ #include <linux/acpi.h> #include <linux/errno.h> #include <linux/fs.h> +#include <linux/mute...
416a87c972b978d71ab828442d1d48e3bd194855
Analyze and fix the following issue in the Linux kernel code: platform/x86:intel/pmc: Remove Meteor Lake S platform support
Problem Details: commit c5ad454a12c6 ("platform/x86: intel/pmc/core: Add Meteor Lake support to pmc core driver") was supposed to add support for Meter Lake P/M and mistakenly added support for Meteor Lake S instead. Meteor Lake P/M support was added later and MTL-S support needs to be removed since its currently assig...
```diff diff --git a/drivers/platform/x86/intel/pmc/core.c b/drivers/platform/x86/intel/pmc/core.c index da6e7206d38b..b8711330e411 100644 --- a/drivers/platform/x86/intel/pmc/core.c +++ b/drivers/platform/x86/intel/pmc/core.c @@ -1039,7 +1039,6 @@ static const struct x86_cpu_id intel_pmc_core_ids[] = { X86_MATCH_INT...
139332e2fce621f759af8c86052417e3307b239f
Analyze and fix the following issue in the Linux kernel code: platform/x86/amd: pmc: Update metrics table info for Pink Sardine
Problem Details: Starting from Pink Sardine, number of IP blocks were added to the SoC and the PMFW has the ability to give debug stats on each the IP blocks after a S0ix cycle within part of the SMU metrics table. To differentiate this change, the 's2d_msg_id' is also changed. Add these new capabilities to the driver...
```diff diff --git a/drivers/platform/x86/amd/pmc.c b/drivers/platform/x86/amd/pmc.c index c2f03cdc9ca9..f7bda8a64c95 100644 --- a/drivers/platform/x86/amd/pmc.c +++ b/drivers/platform/x86/amd/pmc.c @@ -45,7 +45,6 @@ #define AMD_PMC_STB_DUMMY_PC 0xC6000007 /* STB S2D(Spill to DRAM) has different message port offse...
1eb4ef12591348c440ac9d6efcf7521e73cf2b10
Analyze and fix the following issue in the Linux kernel code: bnxt_en: Implement .set_port / .unset_port UDP tunnel callbacks
Problem Details: As per the new udp tunnel framework, drivers which need to know the details of a port entry (i.e. port type) when it gets deleted should use the .set_port / .unset_port callbacks. Implementing the current .udp_tunnel_sync callback would mean that the deleted tunnel port entry would be all zeros. This...
```diff diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index bb0332210674..b499bc9c4e06 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -13036,26 +13036,37 @@ static void bnxt_cfg_ntp_filters(struct bnxt *bp) ...
319a7827df9784048abe072afe6b4fb4501d8de4
Analyze and fix the following issue in the Linux kernel code: bnxt_en: Prevent kernel panic when receiving unexpected PHC_UPDATE event
Problem Details: The firmware can send PHC_RTC_UPDATE async event on a PF that may not have PTP registered. In such a case, there will be a null pointer deference for bp->ptp_cfg when we try to handle the event. Fix it by not registering for this event with the firmware if !bp->ptp_cfg. Also, check that bp->ptp_cfg is...
```diff diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 546eb5d22b7a..bb0332210674 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -2365,6 +2365,9 @@ static int bnxt_async_event_process(struct bnxt *bp, ...
83474a9b252ab23e6003865c2775024344cb9c09
Analyze and fix the following issue in the Linux kernel code: bnxt_en: Skip firmware fatal error recovery if chip is not accessible
Problem Details: Driver starts firmware fatal error recovery by detecting heartbeat failure or fw reset count register changing. But these checks are not reliable if the device is not accessible. This can happen while DPC (Downstream Port containment) is in progress. Skip firmware fatal recovery if pci_device_is_pres...
```diff diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index b3fa840cb71f..546eb5d22b7a 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -11602,6 +11602,7 @@ static void bnxt_tx_timeout(struct net_device *dev, u...
1a9e4f501bc6ff1b6ecb60df54fbf2b54db43bfe
Analyze and fix the following issue in the Linux kernel code: bnxt_en: Query default VLAN before VNIC setup on a VF
Problem Details: We need to call bnxt_hwrm_func_qcfg() on a VF to query the default VLAN that may be setup by the PF. If a default VLAN is enabled, the VF cannot support VLAN acceleration on the receive side and the VNIC must be setup to strip out the default VLAN tag. If a default VLAN is not enabled, the VF can sup...
```diff diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 45739b4a84a2..b3fa840cb71f 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -8813,6 +8813,9 @@ static int bnxt_init_chip(struct bnxt *bp, bool irq_re_...
1d997801c7cc6a7f542e46d5a6bf16f893ad3fe9
Analyze and fix the following issue in the Linux kernel code: bnxt_en: Don't issue AP reset during ethtool's reset operation
Problem Details: Only older NIC controller's firmware uses the PROC AP reset type. Firmware on 5731X/5741X and newer chips does not support this reset type. When bnxt_reset() issues a series of resets, this PROC AP reset may actually fail on these newer chips because the firmware is not ready to accept this unsupporte...
```diff diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c index 2dd8ee4a6f75..8fd5071d8b09 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c @@ -3831,7 +3831,7 @@ static int bnxt_reset(s...
095d5dc0c1d9f3284e3c575ccf4c0e8b04b548f8
Analyze and fix the following issue in the Linux kernel code: bnxt_en: Fix bnxt_hwrm_update_rss_hash_cfg()
Problem Details: We must specify the vnic id of the vnic in the input structure of this firmware message. Otherwise we will get an error from the firmware. Fixes: 98a4322b70e8 ("bnxt_en: update RSS config using difference algorithm") Reviewed-by: Kalesh Anakkur Purayil <kalesh-anakkur.purayil@broadcom.com> Reviewed-b...
```diff diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 1f04cd4cfab9..45739b4a84a2 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -5350,6 +5350,7 @@ static void bnxt_hwrm_update_rss_hash_cfg(struct bnxt *...
e3f2778b1b6ced649bffdc7cbb05b80bb92f2108
Analyze and fix the following issue in the Linux kernel code: ARM: dts: stm32: Fix audio routing on STM32MP15xx DHCOM PDK2
Problem Details: The audio routing flow is not correct, the flow should be from source (second element in the pair) to sink (first element in the pair). The flow now is from "HP_OUT" to "Playback", where "Playback" is source and "HP_OUT" is sink, i.e. the direction is swapped and there is no direct link between the two...
```diff diff --git a/arch/arm/boot/dts/stm32mp15xx-dhcom-pdk2.dtsi b/arch/arm/boot/dts/stm32mp15xx-dhcom-pdk2.dtsi index 4709677151aa..46b87a27d8b3 100644 --- a/arch/arm/boot/dts/stm32mp15xx-dhcom-pdk2.dtsi +++ b/arch/arm/boot/dts/stm32mp15xx-dhcom-pdk2.dtsi @@ -137,10 +137,13 @@ sound { compatible = "audio-grap...
a325956fa7048906e26a4535ac2e87e111788fe8
Analyze and fix the following issue in the Linux kernel code: arm64: dts: rockchip: Fix compatible for Bluetooth on rk3566-anbernic
Problem Details: The realtek Bluetooth module uses the same driver as the realtek,rtl8822cs-bt and the realtek,rtl8723bs-bt, however by selecting the 8723bs advanced power saving features are disabled that appear to interfere with normal operation of the bluetooth module. This change switches the compatible string to d...
```diff diff --git a/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rgxx3.dtsi b/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rgxx3.dtsi index 69f332738d24..a2c31d53b45b 100644 --- a/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rgxx3.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rgxx3.dtsi @@ -721,7 +721,7 @@ ...
093d9b240a1fa261ff8aeb7c7cc484dedacfda53
Analyze and fix the following issue in the Linux kernel code: percpu: Fix self-assignment of __old in raw_cpu_generic_try_cmpxchg()
Problem Details: After commit c5c0ba953b8c ("percpu: Add {raw,this}_cpu_try_cmpxchg()"), clang built ARCH=arm and ARCH=arm64 kernels with CONFIG_INIT_STACK_NONE started panicking on boot in alloc_vmap_area(): [ 0.000000] kernel BUG at mm/vmalloc.c:1638! [ 0.000000] Internal error: Oops - BUG: 00000000f200080...
```diff diff --git a/include/asm-generic/percpu.h b/include/asm-generic/percpu.h index 68c410e85cd7..94cbd50cc870 100644 --- a/include/asm-generic/percpu.h +++ b/include/asm-generic/percpu.h @@ -101,9 +101,9 @@ do { \ #define raw_cpu_generic_try_cmpxchg(pcp, ovalp, nval) \ ({ \ typeof(pcp) *__p = ...
713274f1f2c896d37017efee333fd44149710119
Analyze and fix the following issue in the Linux kernel code: bpf: Fix verifier id tracking of scalars on spill
Problem Details: The following scenario describes a bug in the verifier where it incorrectly concludes about equivalent scalar IDs which could lead to verifier bypass in privileged mode: 1. Prepare a 32-bit rogue number. 2. Put the rogue number into the upper half of a 64-bit register, and roll a random (unknown to...
```diff diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index 5871aa78d01a..0dd8adc7a159 100644 --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -3868,6 +3868,9 @@ static int check_stack_write_fixed_off(struct bpf_verifier_env *env, return err; } save_register_state(state, spi, reg, size...
f645d22b93d5599fe47ce587ee36931290ba5778
Analyze and fix the following issue in the Linux kernel code: drm/i915/gvt: remove unused variable gma_bottom in command parser
Problem Details: Remove unused variable gma_bottom in scan_workload() and scan_wa_ctx(). commit be1da7070aea ("drm/i915/gvt: vGPU command scanner") introduces gma_bottom in several functions to calculate the size of the command buffer. However, some of them are set but actually unused. When compiling the code with ccf...
```diff diff --git a/drivers/gpu/drm/i915/gvt/cmd_parser.c b/drivers/gpu/drm/i915/gvt/cmd_parser.c index 3c4ae1da0d41..05f9348b7a9d 100644 --- a/drivers/gpu/drm/i915/gvt/cmd_parser.c +++ b/drivers/gpu/drm/i915/gvt/cmd_parser.c @@ -2833,7 +2833,7 @@ static int command_scan(struct parser_exec_state *s, static int scan...
7f3c782b3914e510b646a77aedc3adeac2e4a63b
Analyze and fix the following issue in the Linux kernel code: eeprom: at24: also select REGMAP
Problem Details: Selecting only REGMAP_I2C can leave REGMAP unset, causing build errors, so also select REGMAP to prevent the build errors. ../drivers/misc/eeprom/at24.c:540:42: warning: 'struct regmap_config' declared inside parameter list will not be visible outside of this definition or declaration 540 | ...
```diff diff --git a/drivers/misc/eeprom/Kconfig b/drivers/misc/eeprom/Kconfig index f0a7531f354c..2d240bfa819f 100644 --- a/drivers/misc/eeprom/Kconfig +++ b/drivers/misc/eeprom/Kconfig @@ -6,6 +6,7 @@ config EEPROM_AT24 depends on I2C && SYSFS select NVMEM select NVMEM_SYSFS + select REGMAP select REGMAP_I2C ...
409e873ea3c1fd3079909718bbeb06ac1ec7f38b
Analyze and fix the following issue in the Linux kernel code: ceph: fix use-after-free bug for inodes when flushing capsnaps
Problem Details: There is a race between capsnaps flush and removing the inode from 'mdsc->snap_flush_list' list: == Thread A == == Thread B == ceph_queue_cap_snap() -> allocate 'capsnapA' ->ihold('&ci->vfs_inode') ->add 'capsnapA' to 'ci->i_cap_snaps' ->add 'ci' to 'mdsc->snap_flush_list' ...
```diff diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c index 789be30d6ee2..2321e5ddb664 100644 --- a/fs/ceph/caps.c +++ b/fs/ceph/caps.c @@ -1627,6 +1627,7 @@ void ceph_flush_snaps(struct ceph_inode_info *ci, struct inode *inode = &ci->netfs.inode; struct ceph_mds_client *mdsc = ceph_inode_to_client(inode)->mdsc; s...
a3efabee5878b8d7b1863debb78cb7129d07a346
Analyze and fix the following issue in the Linux kernel code: accel/ivpu: Fix sporadic VPU boot failure
Problem Details: Wait for AON bit in HOST_SS_CPR_RST_CLR to return 0 before starting VPUIP power up sequence, otherwise the VPU device may sporadically fail to boot. An error in power up sequence is propagated to the runtime power management - the device will be in an error state until the VPU driver is reloaded. Fix...
```diff diff --git a/drivers/accel/ivpu/ivpu_hw_mtl.c b/drivers/accel/ivpu/ivpu_hw_mtl.c index 156dae676967..fef35422c6f0 100644 --- a/drivers/accel/ivpu/ivpu_hw_mtl.c +++ b/drivers/accel/ivpu/ivpu_hw_mtl.c @@ -197,6 +197,11 @@ static void ivpu_pll_init_frequency_ratios(struct ivpu_device *vdev) hw->pll.pn_ratio = cl...
b563e47957af4ff71736c5cc4120a59b055ab583
Analyze and fix the following issue in the Linux kernel code: accel/ivpu: Do not use mutex_lock_interruptible
Problem Details: If we get signal when waiting for the mmu->lock we do not invalidate current MMU configuration that might result in undefined behavior. Additionally there is little or no benefit on break waiting for ipc->lock. In current code base, we keep this lock for short periods. Fixes: 263b2ba5fc93 ("accel/ivp...
```diff diff --git a/drivers/accel/ivpu/ivpu_ipc.c b/drivers/accel/ivpu/ivpu_ipc.c index 3adcfa80fc0e..fa0af59e39ab 100644 --- a/drivers/accel/ivpu/ivpu_ipc.c +++ b/drivers/accel/ivpu/ivpu_ipc.c @@ -183,9 +183,7 @@ ivpu_ipc_send(struct ivpu_device *vdev, struct ivpu_ipc_consumer *cons, struct v struct ivpu_ipc_info *...
9f7e3611f6c828fcb6001c39d8e7a523a4f31525
Analyze and fix the following issue in the Linux kernel code: accel/ivpu: Do not trigger extra VPU reset if the VPU is idle
Problem Details: Turning off the PLL and entering D0i3 will reset the VPU so an explicit IP reset is redundant. But if the VPU is active, it may interfere with PLL disabling and to avoid that, we have to issue an additional IP reset to silence the VPU before turning off the PLL. Fixes: a8fed6d1e0b9 ("accel/ivpu: Fix p...
```diff diff --git a/drivers/accel/ivpu/ivpu_hw_mtl.c b/drivers/accel/ivpu/ivpu_hw_mtl.c index 382ec127be8e..156dae676967 100644 --- a/drivers/accel/ivpu/ivpu_hw_mtl.c +++ b/drivers/accel/ivpu/ivpu_hw_mtl.c @@ -754,9 +754,8 @@ static int ivpu_hw_mtl_power_down(struct ivpu_device *vdev) { int ret = 0; - if (ivpu_hw...
103d2ea13923cae3df232072d921fe0772a0a0fd
Analyze and fix the following issue in the Linux kernel code: accel/ivpu: Rename and cleanup MMU600 page tables
Problem Details: Simplify and unify naming convention in MMU600 page tables configuration. All DMA addresses in page tables directly accessed by VPU are called with _dma sufix and all CPU pointers to those page tables have _ptr sufix. Base pointers used to do a page walk on the CPU have corresponding names: pud_ptr...
```diff diff --git a/drivers/accel/ivpu/ivpu_mmu_context.c b/drivers/accel/ivpu/ivpu_mmu_context.c index 79820ed2b8f1..6c7a53651075 100644 --- a/drivers/accel/ivpu/ivpu_mmu_context.c +++ b/drivers/accel/ivpu/ivpu_mmu_context.c @@ -39,123 +39,125 @@ static int ivpu_mmu_pgtable_init(struct ivpu_device *vdev, struct ivpu...
a9f31047baca57d47440c879cf259b86f900260c
Analyze and fix the following issue in the Linux kernel code: net: bcmgenet: Fix EEE implementation
Problem Details: We had a number of short comings: - EEE must be re-evaluated whenever the state machine detects a link change as wight be switching from a link partner with EEE enabled/disabled - tx_lpi_enabled controls whether EEE should be enabled/disabled for the transmit path, which applies to the TBUF blo...
```diff diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c index eca0c92c0c84..2b5761ad2f92 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c @@ -1272,7 +1272,8 @@ static void bcmgenet_get_ethtool_st...
f0d751973f739feb3742d4e5f4c0914e8b84e7c7
Analyze and fix the following issue in the Linux kernel code: eth: ixgbe: fix the wake condition
Problem Details: Flip the netif_carrier_ok() condition in queue wake logic. When I moved it to inside __netif_txq_completed_wake() I missed negating it. This made the condition ineffective and could probably lead to crashes. Fixes: 301f227fc860 ("net: piggy back on the memory barrier in bql when waking queues") Revie...
```diff diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 5d83c887a3fc..1726297f2e0d 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -1256,7 +1256,7 @@ static bool ixgbe_clean_tx_irq(struct i...
649c3fed36730a53447d8f479c14e431363563b6
Analyze and fix the following issue in the Linux kernel code: eth: bnxt: fix the wake condition
Problem Details: The down condition should be the negation of the wake condition, IOW when I moved it from: if (cond && wake()) to if (__netif_txq_completed_wake(cond)) Cond should have been negated. Flip it now. This bug leads to occasional crashes with netconsole. It may also lead to queue never waking up in cas...
```diff diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index dcd9367f05af..1f04cd4cfab9 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -692,7 +692,7 @@ next_tx_int: __netif_txq_completed_wake(txq, nr_pkts,...
7c5d4801ecf0564c860033d89726b99723c55146
Analyze and fix the following issue in the Linux kernel code: lib: cpu_rmap: Fix potential use-after-free in irq_cpu_rmap_release()
Problem Details: irq_cpu_rmap_release() calls cpu_rmap_put(), which may free the rmap. So we need to clear the pointer to our glue structure in rmap before doing that, not after. Fixes: 4e0473f1060a ("lib: cpu_rmap: Avoid use after free on rmap->obj array entries") Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Re...
```diff diff --git a/lib/cpu_rmap.c b/lib/cpu_rmap.c index 73c1636b927b..4c348670da31 100644 --- a/lib/cpu_rmap.c +++ b/lib/cpu_rmap.c @@ -280,8 +280,8 @@ static void irq_cpu_rmap_release(struct kref *ref) struct irq_glue *glue = container_of(ref, struct irq_glue, notify.kref); - cpu_rmap_put(glue->rmap); glue...
98d7c7544a3a9f2713dc0f729bca4ab05fbc6e7f
Analyze and fix the following issue in the Linux kernel code: streamline_config.pl: handle also ${CONFIG_FOO}
Problem Details: streamline_config.pl currently searches for CONFIG options in Kconfig files as $(CONFIG_FOO). But some Kconfigs (e.g. thunderbolt) use ${CONFIG_FOO}. So fix up the regex to accept both. This fixes: $ make LSMOD=`pwd/`/lsmod localmodconfig using config: '.config' thunderbolt config not found!! Signed-...
```diff diff --git a/scripts/kconfig/streamline_config.pl b/scripts/kconfig/streamline_config.pl index 3387ad7508f7..d51cd7ac15d2 100755 --- a/scripts/kconfig/streamline_config.pl +++ b/scripts/kconfig/streamline_config.pl @@ -317,7 +317,7 @@ foreach my $makefile (@makefiles) { $_ = convert_vars($_, %make_vars); ...
a1a64a151dae8ac3581c1cbde44b672045cb658b
Analyze and fix the following issue in the Linux kernel code: netfilter: nfnetlink: skip error delivery on batch in case of ENOMEM
Problem Details: If caller reports ENOMEM, then stop iterating over the batch and send a single netlink message to userspace to report OOM. Fixes: cbb8125eb40b ("netfilter: nfnetlink: deliver netlink errors on batch completion") Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
```diff diff --git a/net/netfilter/nfnetlink.c b/net/netfilter/nfnetlink.c index ae7146475d17..c9fbe0f707b5 100644 --- a/net/netfilter/nfnetlink.c +++ b/net/netfilter/nfnetlink.c @@ -533,7 +533,8 @@ ack: * processed, this avoids that the same error is * reported several times when replaying the batch. */...
212ed75dc5fb9d1423b3942c8f872a868cda3466
Analyze and fix the following issue in the Linux kernel code: netfilter: nf_tables: integrate pipapo into commit protocol
Problem Details: The pipapo set backend follows copy-on-update approach, maintaining one clone of the existing datastructure that is being updated. The clone and current datastructures are swapped via rcu from the commit step. The existing integration with the commit protocol is flawed because there is no operation to...
```diff diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h index 2e24ea1d744c..83db182decc8 100644 --- a/include/net/netfilter/nf_tables.h +++ b/include/net/netfilter/nf_tables.h @@ -462,7 +462,8 @@ struct nft_set_ops { const struct nft_set *set, const struct nf...
a48e2c328c6505d356c90ef51a2052d1d27f9bef
Analyze and fix the following issue in the Linux kernel code: scsi: lpfc: Avoid -Wstringop-overflow warning
Problem Details: Prevent any potential integer wrapping issue, and avoid a -Wstringop-overflow warning by using the check_mul_overflow() helper. drivers/scsi/lpfc/lpfc.h: 837:#define LPFC_RAS_MIN_BUFF_POST_SIZE (256 * 1024) drivers/scsi/lpfc/lpfc_debugfs.c: 2266 size = LPFC_RAS_MIN_BUFF_POST_SIZE * phba->cfg_ras_fwlo...
```diff diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c index bdf34af4ef36..7f9b221e7c34 100644 --- a/drivers/scsi/lpfc/lpfc_debugfs.c +++ b/drivers/scsi/lpfc/lpfc_debugfs.c @@ -2259,11 +2259,15 @@ lpfc_debugfs_ras_log_open(struct inode *inode, struct file *file) goto out; } spin...
e01d05bbf6348ccd9f5a057280310d78ea9e7b52
Analyze and fix the following issue in the Linux kernel code: scsi: ufs: core: Fix ufshcd_inc_sq_tail() function bug
Problem Details: When qdepth is not power of 2, not every bit of the mask is 1, so in sq_tail_slot some bits will be cleared unexpectedly. Signed-off-by: zhanghui <zhanghui31@xiaomi.com> Link: https://lore.kernel.org/r/20230601124613.1446-1-zhanghui31@xiaomi.com Reviewed-by: Bart Van Assche <bvanassche@acm.org> Review...
```diff diff --git a/drivers/ufs/core/ufshcd-priv.h b/drivers/ufs/core/ufshcd-priv.h index f32c1a874dff..aa88e60ea1f6 100644 --- a/drivers/ufs/core/ufshcd-priv.h +++ b/drivers/ufs/core/ufshcd-priv.h @@ -369,10 +369,11 @@ static inline bool ufs_is_valid_unit_desc_lun(struct ufs_dev_info *dev_info, u8 static inline void...
24335848e543dc95c9e2ffa0108d879ffefd0442
Analyze and fix the following issue in the Linux kernel code: drm/i915/gsc: Fix error code in intel_gsc_uc_heci_cmd_submit_nonpriv()
Problem Details: This should return negative -EAGAIN instead of positive EAGAIN. Fixes: e5e1e6d28ebc ("drm/i915/pxp: Add MTL helpers to submit Heci-Cmd-Packet to GSC") Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Reviewed-by: Alan Previn <alan.previn.teres.alexis@intel.com> Reviewed-by: Andi Shyti <andi.shy...
```diff diff --git a/drivers/gpu/drm/i915/gt/uc/intel_gsc_uc_heci_cmd_submit.c b/drivers/gpu/drm/i915/gt/uc/intel_gsc_uc_heci_cmd_submit.c index 0ad090304ca0..89ed5ee9cded 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_gsc_uc_heci_cmd_submit.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_gsc_uc_heci_cmd_submit.c @@ -202,7 +20...
5d80a86a99d524b0d89ff3906c6200b9f57b66f8
Analyze and fix the following issue in the Linux kernel code: power: supply: rt9467: Make charger-enable control as logic level
Problem Details: The current coding make 'charger-enable-gpio' control as real hardware level. This conflicts with the default binding example. For driver behavior, no need to use real hardware level, just logic level is enough. This change can make this flexibility keep in dts gpio active level about this pin. Fixes:...
```diff diff --git a/drivers/power/supply/rt9467-charger.c b/drivers/power/supply/rt9467-charger.c index 9ef759a9eb2e..e80c51f84d76 100644 --- a/drivers/power/supply/rt9467-charger.c +++ b/drivers/power/supply/rt9467-charger.c @@ -1192,7 +1192,7 @@ static int rt9467_charger_probe(struct i2c_client *i2c) i2c_set_clien...
e7a2cf8e058e24218067694113938726db8696c9
Analyze and fix the following issue in the Linux kernel code: drm/msm/dpu: tidy up some error checking
Problem Details: The "vsync_hz" variable is unsigned int so it can't be less than zero. The dpu_kms_get_clk_rate() function used to return a u64 but I previously changed it to return an unsigned long and zero on error so it matches clk_get_rate(). Change the "vsync_hz" type to unsigned long as well and change the err...
```diff diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c index 107f0eff958c..63ba0082b6ee 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c @@ -323,7 +323,7 @@ static void d...
203b2019b3acc4ec851ba0461f1b30a3fd4449f5
Analyze and fix the following issue in the Linux kernel code: drm/msm/dpu: add DSC blocks to the catalog of MSM8998
Problem Details: MSM8998 doesn't have DSC blocks declared in the catalog. Complete DSC 1.1 support for all platforms by adding the missing blocks to MSM8998. Changes in v9: -- add MSM8998 and SC8180x to commit title Changes in v10: -- fix grammar at commit text Changes in v12: -- fix "titil" with "title" at changes ...
```diff diff --git a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_3_0_msm8998.h b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_3_0_msm8998.h index 3c732a0360c7..7d0d0e74c3b0 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_3_0_msm8998.h +++ b/drivers/gpu/drm/msm/disp/dpu1/catalog/dpu_3_0_msm8998.h @@ -126,6 +126,11 @@ ...
5e0bff2b9690c857d3465d90015fb30fa4947ffe
Analyze and fix the following issue in the Linux kernel code: drm/i915/display: Include of display limits doesn't need 'display/'
Problem Details: Drop the unnecessary directory prefix. This also makes intel_display_device.h easier to use from the Xe driver. Cc: Lucas De Marchi <lucas.demarchi@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Jani Nikula <jani.nikula@inte...
```diff diff --git a/drivers/gpu/drm/i915/display/intel_display_device.h b/drivers/gpu/drm/i915/display/intel_display_device.h index 4f931258d81d..706ff2aa1f55 100644 --- a/drivers/gpu/drm/i915/display/intel_display_device.h +++ b/drivers/gpu/drm/i915/display/intel_display_device.h @@ -8,7 +8,7 @@ #include <linux/ty...
97bd788efb9052963b43ba41c8aaff3ed12e1ede
Analyze and fix the following issue in the Linux kernel code: net/mlx5: Skip inline mode check after mlx5_eswitch_enable_locked() failure
Problem Details: Commit bffaa916588e ("net/mlx5: E-Switch, Add control for inline mode") added inline mode checking to esw_offloads_start() with a warning printed out in case there is a problem. Tne inline mode checking was done even after mlx5_eswitch_enable_locked() call failed, which is pointless. Later on, commit ...
```diff diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c index 29de4e759f4f..eafb098db6b0 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c @@ -2178,...
de1f0a650824ed1905d5d48190f65f309cee5163
Analyze and fix the following issue in the Linux kernel code: net/mlx5e: TC, refactor access to hash key
Problem Details: Currently, a temp object is filled and used as a key for rhashtable_lookup. Lookups will only works while key remains the first attribute in the relevant rhashtable node object. Fix this by passing a key, instead of a object containing the key. Signed-off-by: Oz Shlomo <ozsh@nvidia.com> Reviewed-by: ...
```diff diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act_stats.c b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act_stats.c index 07c1895a2b23..7aa926e542d3 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act_stats.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc/act_stats.c @@ -25,8 +25,...
b447b079cf3a9971ea4d31301e673f49612ccc18
Analyze and fix the following issue in the Linux kernel code: drm/amdgpu: fix xclk freq on CHIP_STONEY
Problem Details: According to Alex, most APUs from that time seem to have the same issue (vbios says 48Mhz, actual is 100Mhz). I only have a CHIP_STONEY so I limit the fixup to CHIP_STONEY Signed-off-by: Chia-I Wu <olvaffe@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
```diff diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c index 531f173ade2d..c0360dbebd4b 100644 --- a/drivers/gpu/drm/amd/amdgpu/vi.c +++ b/drivers/gpu/drm/amd/amdgpu/vi.c @@ -542,8 +542,15 @@ static u32 vi_get_xclk(struct amdgpu_device *adev) u32 reference_clock = adev->clock.spll.refe...
982b173a6c6d9472730c3116051977e05d17c8c5
Analyze and fix the following issue in the Linux kernel code: drm/radeon: fix race condition UAF in radeon_gem_set_domain_ioctl
Problem Details: Userspace can race to free the gobj(robj converted from), robj should not be accessed again after drm_gem_object_put, otherwith it will result in use-after-free. Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Min Li <lm0963hack@gmail.com> Signed-off-by: Alex Deucher <alexander....
```diff diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c index bdc5af23f005..d3f5ddbc1704 100644 --- a/drivers/gpu/drm/radeon/radeon_gem.c +++ b/drivers/gpu/drm/radeon/radeon_gem.c @@ -459,7 +459,6 @@ int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data, struct rade...
99b3886f8674502e967b1d050e40aa669c9098c1
Analyze and fix the following issue in the Linux kernel code: drm/amd: Make lack of `ACPI_FADT_LOW_POWER_S0` or `CONFIG_AMD_PMC` louder during suspend path
Problem Details: Users have reported that s2idle wasn't working on OEM Phoenix systems, but it was root caused to be because `CONFIG_AMD_PMC` wasn't set in the distribution kernel config. To make this more apparent, raise the messaging to err instead of warn. Link: https://bugzilla.kernel.org/show_bug.cgi?id=217497 R...
```diff diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c index e1b01554e323..fd6e83795873 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c @@ -1093,14 +1093,14 @@ bool amdgpu_acpi_is_s0ix_active(struct amdgpu_device *ade...
1d13c49cf4e246b218d71873f1bb1bbd376aa10e
Analyze and fix the following issue in the Linux kernel code: drm/amd/pm: Fix power context allocation in SMU13
Problem Details: Use the right data structure for allocation. Signed-off-by: Lijo Lazar <lijo.lazar@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
```diff diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c index 393c6a7b9609..ca379181081c 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c @@ -573,11 +573,11 @@ int smu_v13_0_init_power(struct smu...
2a1eb1a343208ce7d6839b73d62aece343e693ff
Analyze and fix the following issue in the Linux kernel code: drm/amdgpu: fix Null pointer dereference error in amdgpu_device_recover_vram
Problem Details: Use the function of amdgpu_bo_vm_destroy to handle the resource release of shadow bo. During the amdgpu_mes_self_test, shadow bo released, but vmbo->shadow_list was not, which caused a null pointer reference error in amdgpu_device_recover_vram when GPU reset. Fixes: 6c032c37ac3e ("drm/amdgpu: Fix vram...
```diff diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index 2bd1a54ee866..3b225be89cb7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -79,9 +79,10 @@ static void amdgpu_bo_user_destroy(struct ttm_buffer_o...
de29a96acceae732c68a4094d08dc49079eefa02
Analyze and fix the following issue in the Linux kernel code: notifier: Initialize new struct srcu_usage field
Problem Details: In commit 95433f726301 ("srcu: Begin offloading srcu_struct fields to srcu_update"), a new struct srcu_usage field was added, but was not properly initialized. This led to a "spinlock bad magic" BUG when the SRCU notifier was ever used. This was observed in the MediaTek CCI devfreq driver on next-20230...
```diff diff --git a/include/linux/notifier.h b/include/linux/notifier.h index 2aba75145144..86544707236a 100644 --- a/include/linux/notifier.h +++ b/include/linux/notifier.h @@ -106,12 +106,22 @@ extern void srcu_init_notifier_head(struct srcu_notifier_head *nh); #define RAW_NOTIFIER_INIT(name) { \ .head = NULL...
06b9dede1e7d8b7a199f8014aca5a7d7137b41b0
Analyze and fix the following issue in the Linux kernel code: net: dwmac_socfpga: initialize local data for mdio regmap configuration
Problem Details: Explicitly zero-ize the local mdio_regmap_config data, and explicitly set the .autoscan parameter, as we only have a PCS on this bus. Fixes: 5d1f3fe7d2d5 ("net: stmmac: dwmac-sogfpga: use the lynx pcs driver") Suggested-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Suggested-by: Maciej Fijalk...
```diff diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c index 1fb808be843b..6267bcb60206 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c @@ -389,7 +389,6 @@ static int socfpg...
7f80ab365a1d10cb143c897954199c760272c338
Analyze and fix the following issue in the Linux kernel code: libnvdimm: mark 'security_show' static again
Problem Details: The security_show() function was made global and __weak at some point to allow overriding it. The override was removed later, but it remains global, which causes a warning about the missing declaration: drivers/nvdimm/dimm_devs.c:352:9: error: no previous prototype for 'security_show' This is also no...
```diff diff --git a/drivers/nvdimm/dimm_devs.c b/drivers/nvdimm/dimm_devs.c index 957f7c3d17ba..10c3cb6a574a 100644 --- a/drivers/nvdimm/dimm_devs.c +++ b/drivers/nvdimm/dimm_devs.c @@ -349,7 +349,7 @@ static ssize_t available_slots_show(struct device *dev, } static DEVICE_ATTR_RO(available_slots); -ssize_t securi...
fa19a5d9dcffddae2cb5774df98b09ca3f2ea783
Analyze and fix the following issue in the Linux kernel code: net: altera_tse: explicitly disable autoscan on the regmap-mdio bus
Problem Details: Set the .autoscan flag to false on the regmap-mdio bus, to avoid using a random uninitialized value. We don't want autoscan in this case as the mdio device is a PCS and not a PHY. Fixes: db48abbaa18e ("net: ethernet: altera-tse: Convert to mdio-regmap and use PCS Lynx") Suggested-by: Russell King (Ora...
```diff diff --git a/drivers/net/ethernet/altera/altera_tse_main.c b/drivers/net/ethernet/altera/altera_tse_main.c index 215f9fb89c5b..2e15800e5310 100644 --- a/drivers/net/ethernet/altera/altera_tse_main.c +++ b/drivers/net/ethernet/altera/altera_tse_main.c @@ -1288,6 +1288,7 @@ static int altera_tse_probe(struct plat...
a8dd7404c21447b46e792a483f4d73af66ccaf8d
Analyze and fix the following issue in the Linux kernel code: net: stmmac: make the pcs_lynx cleanup sequence specific to dwmac_socfpga
Problem Details: So far, only the dwmac_socfpga variant of stmmac uses PCS Lynx. Use a dedicated cleanup sequence for dwmac_socfpga instead of using the generic stmmac one. Fixes: 5d1f3fe7d2d5 ("net: stmmac: dwmac-sogfpga: use the lynx pcs driver") Suggested-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signe...
```diff diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h index 52c5ec553276..16e67c18b6f7 100644 --- a/drivers/net/ethernet/stmicro/stmmac/common.h +++ b/drivers/net/ethernet/stmicro/stmmac/common.h @@ -16,7 +16,6 @@ #include <linux/stmmac.h> #include <linux/phy...
fae555f5a56f1d10cc5dc6ec3ad4f07243f6ce3c
Analyze and fix the following issue in the Linux kernel code: net: altera_tse: Use the correct Kconfig option for the PCS_LYNX dependency
Problem Details: Use the correct Kconfig dependency for altera_tse as PCS_ALTERA_TSE was replaced by PCS_LYNX. Fixes: db48abbaa18e ("net: ethernet: altera-tse: Convert to mdio-regmap and use PCS Lynx") Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Reviewed-by: Russell King (Oracle) <rmk+kernel@armli...
```diff diff --git a/drivers/net/ethernet/altera/Kconfig b/drivers/net/ethernet/altera/Kconfig index 93533ba03429..17985319088c 100644 --- a/drivers/net/ethernet/altera/Kconfig +++ b/drivers/net/ethernet/altera/Kconfig @@ -4,7 +4,7 @@ config ALTERA_TSE depends on HAS_DMA select PHYLIB select PHYLINK - select PCS_...
2d830f7a41343302ab19e73d4f44f5ccb6940a25
Analyze and fix the following issue in the Linux kernel code: net: altera-tse: Initialize local structs before using it
Problem Details: The regmap_config and mdio_regmap_config objects needs to be zeroed before using them. This will cause spurious errors at probe time as config->pad_bits is containing random uninitialized data. Fixes: db48abbaa18e ("net: ethernet: altera-tse: Convert to mdio-regmap and use PCS Lynx") Signed-off-by: Ma...
```diff diff --git a/drivers/net/ethernet/altera/altera_tse_main.c b/drivers/net/ethernet/altera/altera_tse_main.c index d866c0f1b503..215f9fb89c5b 100644 --- a/drivers/net/ethernet/altera/altera_tse_main.c +++ b/drivers/net/ethernet/altera/altera_tse_main.c @@ -1255,6 +1255,8 @@ static int altera_tse_probe(struct plat...
1a0ddd56e545b743af510b5a1b8dbdfe7d35cd3b
Analyze and fix the following issue in the Linux kernel code: pktcdvd: replace sscanf() by kstrtoul()
Problem Details: The checkpatch.pl warns: "Prefer kstrto<type> to single variable sscanf". Fix the code accordingly. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20230310164549.22133-3-andriy.shevchenko@linux.intel.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
```diff diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c index a327cce67768..488d03dc5152 100644 --- a/drivers/block/pktcdvd.c +++ b/drivers/block/pktcdvd.c @@ -237,15 +237,16 @@ static ssize_t congestion_off_store(struct device *dev, const char *buf, size_t len) { struct pktcdvd_device *pd = ...
9cc31938d4586f72eb8e0235ad9d9eb22496fcee
Analyze and fix the following issue in the Linux kernel code: i915/perf: Drop the aging_tail logic in perf OA
Problem Details: On DG2, capturing OA reports while running heavy render workloads sometimes results in invalid OA reports where 64-byte chunks inside reports have stale values. Under memory pressure, high OA sampling rates (13.3 us) and heavy render workload, occasionally, the OA HW TAIL pointer does not progress as f...
```diff diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c index 58284156428d..a8d43bf1f6d5 100644 --- a/drivers/gpu/drm/i915/i915_perf.c +++ b/drivers/gpu/drm/i915/i915_perf.c @@ -531,8 +531,7 @@ static void oa_context_id_squash(struct i915_perf_stream *stream, u32 *report) * (See descr...
62176420274db5b5127cd7a0083a9aeb461756ee
Analyze and fix the following issue in the Linux kernel code: fs: avoid empty option when generating legacy mount string
Problem Details: As each option string fragment is always prepended with a comma it would happen that the whole string always starts with a comma. This could be interpreted by filesystem drivers as an empty option and may produce errors. For example the NTFS driver from ntfs.ko behaves like this and fails when mounted...
```diff diff --git a/fs/fs_context.c b/fs/fs_context.c index 24ce12f0db32..851214d1d013 100644 --- a/fs/fs_context.c +++ b/fs/fs_context.c @@ -561,7 +561,8 @@ static int legacy_parse_param(struct fs_context *fc, struct fs_parameter *param) return -ENOMEM; } - ctx->legacy_data[size++] = ','; + if (size) + ctx->...
25bda386c3d526b48dd22186324570fc8e191a52
Analyze and fix the following issue in the Linux kernel code: MAINTAINERS: Add entry for debug objects
Problem Details: This is overdue and an oversight. Add myself to this file deespite the fact that I'm trying to reduce the number of entries in this file which have my name attached, but in the hope that patches wont get picked up elsewhere completely unreviewed and unnoticed. Signed-off-by: Thomas Gleixner <tglx@lin...
```diff diff --git a/MAINTAINERS b/MAINTAINERS index 0dab9737ec16..a2f1d14031b8 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5728,6 +5728,14 @@ F: include/linux/tfrc.h F: include/uapi/linux/dccp.h F: net/dccp/ +DEBUGOBJECTS: +M: Thomas Gleixner <tglx@linutronix.de> +L: linux-kernel@vger.kernel.org +S: Maintained ...
2a567c1e29301495affa220543f156dd6dad50a9
Analyze and fix the following issue in the Linux kernel code: dt-bindings: net: realtek-bluetooth: Fix double RTL8723CS in desc
Problem Details: The description says 'RTL8723CS/RTL8723CS/...' whereas the title and other places reference 'RTL8723BS/RTL8723CS/...'. Signed-off-by: Diederik de Haas <didi.debian@cknow.org> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20230509141500.275887-1-didi.deb...
```diff diff --git a/Documentation/devicetree/bindings/net/realtek-bluetooth.yaml b/Documentation/devicetree/bindings/net/realtek-bluetooth.yaml index 506ea9b17668..043e118c605c 100644 --- a/Documentation/devicetree/bindings/net/realtek-bluetooth.yaml +++ b/Documentation/devicetree/bindings/net/realtek-bluetooth.yaml @...
44b902e935be111fc98eb2a2d8e3d08196fd52ac
Analyze and fix the following issue in the Linux kernel code: dt-bindings: net: realtek-bluetooth: Fix RTL8821CS binding
Problem Details: Update the fallback string for the RTL8821CS from realtek,rtl8822cs-bt to realtek,rtl8723bs-bt. The difference between these two strings is that the 8822cs enables power saving features that the 8723bs does not, and in testing the 8821cs seems to have issues with these power saving modes enabled. Fixe...
```diff diff --git a/Documentation/devicetree/bindings/net/realtek-bluetooth.yaml b/Documentation/devicetree/bindings/net/realtek-bluetooth.yaml index 8cc2b9924680..506ea9b17668 100644 --- a/Documentation/devicetree/bindings/net/realtek-bluetooth.yaml +++ b/Documentation/devicetree/bindings/net/realtek-bluetooth.yaml @...
a5819e51912292e16f14f4c014c384f754002e5e
Analyze and fix the following issue in the Linux kernel code: drm/i915/mtl: find the best QGV point for the SAGV configuration
Problem Details: From MTL onwards, we need to find the best QGV point based on the required data rate and pass the peak BW of that point to the punit to lock the corresponding QGV point. v1: Fix for warning from kernel test robot v2: No need to serialize for the peakbw change as pmdemand code will do that (Imre) ...
```diff diff --git a/drivers/gpu/drm/i915/display/intel_bw.c b/drivers/gpu/drm/i915/display/intel_bw.c index b1cbeda0b2e3..bef96db62c80 100644 --- a/drivers/gpu/drm/i915/display/intel_bw.c +++ b/drivers/gpu/drm/i915/display/intel_bw.c @@ -803,6 +803,77 @@ intel_atomic_get_bw_state(struct intel_atomic_state *state) re...
626765bb4b2e732e9a1595fc801f696dbde12db9
Analyze and fix the following issue in the Linux kernel code: drm/i915: fix the derating percentage for MTL
Problem Details: Follow the values from bspec for the percentage overhead for efficiency in MTL BW calculations. Bspec: 64631 Signed-off-by: Vinod Govindapillai <vinod.govindapillai@intel.com> Reviewed-by: Matt Roper <matthew.d.roper@intel.com> Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com> Link...
```diff diff --git a/drivers/gpu/drm/i915/display/intel_bw.c b/drivers/gpu/drm/i915/display/intel_bw.c index 597d5816ad1b..ab405c48ca3a 100644 --- a/drivers/gpu/drm/i915/display/intel_bw.c +++ b/drivers/gpu/drm/i915/display/intel_bw.c @@ -379,7 +379,7 @@ static const struct intel_sa_info mtl_sa_info = { .deburst = 32...
ec3252bff7b60fd2ee1a51a11054c54d63435ed2
Analyze and fix the following issue in the Linux kernel code: wifi: mac80211: use wiphy work for channel switch
Problem Details: Channel switch obviously must be handled per link, and we have a (potential) deadlock when canceling that work. Use the new delayed wiphy work to handle this instead and get rid of the explicit timer that way too. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
```diff diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c index 4d50e95dd75f..168bf3edd4b4 100644 --- a/net/mac80211/chan.c +++ b/net/mac80211/chan.c @@ -1205,8 +1205,8 @@ ieee80211_link_chanctx_reservation_complete(struct ieee80211_link_data *link) &link->csa_finalize_work); break; case NL80211_IFT...
1444f58931ef5227532cf5436bb55c1dd511d9a2
Analyze and fix the following issue in the Linux kernel code: wifi: mac80211: use wiphy work for SMPS
Problem Details: SMPS requests are per link, and currently there's a potential deadlock with canceling. Use the new wiphy work to handle SMPS instead, so that the cancel cannot deadlock. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
```diff diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c index 5315ab750280..33729870ad8a 100644 --- a/net/mac80211/ht.c +++ b/net/mac80211/ht.c @@ -9,7 +9,7 @@ * Copyright 2007, Michael Wu <flamingice@sourmilk.net> * Copyright 2007-2010, Intel Corporation * Copyright 2017 Intel Deutschland GmbH - * Copyright(c...
4d45145ba6e2e1c0eba4ebda7d6273319191f4e8
Analyze and fix the following issue in the Linux kernel code: wifi: cfg80211: hold wiphy lock when sending wiphy
Problem Details: Sending the wiphy out might cause calls to the driver, notably get_txq_stats() and get_antenna(). These aren't very important, since the normally have their own locks and/or just send out static data, but if the contract should be that the wiphy lock is always held, these are also affected. Fix that. ...
```diff diff --git a/net/wireless/core.c b/net/wireless/core.c index a04b6eeb55f8..151a8567d2a5 100644 --- a/net/wireless/core.c +++ b/net/wireless/core.c @@ -129,6 +129,7 @@ int cfg80211_dev_rename(struct cfg80211_registered_device *rdev, int result; ASSERT_RTNL(); + lockdep_assert_wiphy(&rdev->wiphy); /* Ig...
9831a9d1841fb3188c46a13da30aecd96bd1bae6
Analyze and fix the following issue in the Linux kernel code: drm/i915/dp: Fix log level for "CDS interlane align done"
Problem Details: "CDS interlane align done" is a passing condition not an error. Before adding new macros for logs it was drm_dbg_kms. Fixes: f48eab290287 ("drm/i915/dp: Add link training debug and error printing helpers") Cc: Imre Deak <imre.deak@intel.com> CC: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Khale...
```diff diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c b/drivers/gpu/drm/i915/display/intel_dp_link_training.c index 0952a707358c..176b610642e7 100644 --- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c +++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c @@ -1279,7 +1279,7 @@ intel_d...
eb0481bbc4ce386e73e28ad8590b4f12c8aded56
Analyze and fix the following issue in the Linux kernel code: objtool: Fix reloc_hash size
Problem Details: With CONFIG_DEBUG_INFO, DWARF creates a lot of relocations and reloc_hash is woefully undersized, which can affect performance significantly. Fix that. Link: https://lore.kernel.org/r/38ef60dc8043270bf3b9dfd139ae2a30ca3f75cc.1685464332.git.jpoimboe@kernel.org Signed-off-by: Josh Poimboeuf <jpoimboe@k...
```diff diff --git a/tools/objtool/elf.c b/tools/objtool/elf.c index 4bbdd8e6df2c..f72ec6d8fb14 100644 --- a/tools/objtool/elf.c +++ b/tools/objtool/elf.c @@ -328,12 +328,12 @@ static int read_sections(struct elf *elf) } } - if (sec->sh.sh_flags & SHF_EXECINSTR) - elf->text_size += sec->sh.sh_size; - lis...
a9da8247627eefc73f909bf945031a5431a53993
Analyze and fix the following issue in the Linux kernel code: drm/vmwgfx: Add unwind hints around RBP clobber
Problem Details: VMware high-bandwidth hypercalls take the RBP register as input. This breaks basic frame pointer convention, as RBP should never be clobbered. So frame pointer unwinding is broken for the instructions surrounding the hypercalls. Fortunately this doesn't break live patching with CONFIG_FRAME_POINTER,...
```diff diff --git a/arch/x86/include/asm/unwind_hints.h b/arch/x86/include/asm/unwind_hints.h index 01cb9692b160..85cc57cb6539 100644 --- a/arch/x86/include/asm/unwind_hints.h +++ b/arch/x86/include/asm/unwind_hints.h @@ -76,9 +76,18 @@ #else +#define UNWIND_HINT_UNDEFINED \ + UNWIND_HINT(UNWIND_HINT_TYPE_UNDEFIN...
ac27ecf68a1ada240bb71531dc2d30cde04ad70a
Analyze and fix the following issue in the Linux kernel code: x86/entry: Move thunk restore code into thunk functions
Problem Details: There's no need for both thunk functions to jump to the same shared thunk restore code which lives outside the thunk function boundaries. It disrupts i-cache locality and confuses objtool. Keep it simple by keeping each thunk's restore code self-contained within the function. Fixes a bunch of false p...
```diff diff --git a/arch/x86/entry/thunk_64.S b/arch/x86/entry/thunk_64.S index 5e37f41e5f14..27b5da2111ac 100644 --- a/arch/x86/entry/thunk_64.S +++ b/arch/x86/entry/thunk_64.S @@ -26,17 +26,7 @@ SYM_FUNC_START(\name) pushq %r11 call \func - jmp __thunk_restore -SYM_FUNC_END(\name) - _ASM_NOKPROBE(\name) - .en...
020126239b8f376ed2f0bef9dc07d0b280a0b7f5
Analyze and fix the following issue in the Linux kernel code: Revert "x86/orc: Make it callthunk aware"
Problem Details: Commit 396e0b8e09e8 ("x86/orc: Make it callthunk aware") attempted to deal with the fact that function prefix code didn't have ORC coverage. However, it didn't work as advertised. Use of the "null" ORC entry just caused affected unwinds to end early. The root cause has now been fixed with commit 5743...
```diff diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h index d7da28fada87..6c15a622ad60 100644 --- a/arch/x86/include/asm/alternative.h +++ b/arch/x86/include/asm/alternative.h @@ -113,7 +113,6 @@ extern void callthunks_patch_builtin_calls(void); extern void callthunks_patch_modul...
a27648c742104a833a01c54becc24429898d85bf
Analyze and fix the following issue in the Linux kernel code: afs: Fix setting of mtime when creating a file/dir/symlink
Problem Details: kafs incorrectly passes a zero mtime (ie. 1st Jan 1970) to the server when creating a file, dir or symlink because the mtime recorded in the afs_operation struct gets passed to the server by the marshalling routines, but the afs_mkdir(), afs_create() and afs_symlink() functions don't set it. This gets...
```diff diff --git a/fs/afs/dir.c b/fs/afs/dir.c index 4dd97afa536c..5219182e52e1 100644 --- a/fs/afs/dir.c +++ b/fs/afs/dir.c @@ -1358,6 +1358,7 @@ static int afs_mkdir(struct mnt_idmap *idmap, struct inode *dir, op->dentry = dentry; op->create.mode = S_IFDIR | mode; op->create.reason = afs_edit_dir_for_mkdir; +...
a9d1c4c6df0e568207907c04aed9e7beb1294c42
Analyze and fix the following issue in the Linux kernel code: fuse: revalidate: don't invalidate if interrupted
Problem Details: If the LOOKUP request triggered from fuse_dentry_revalidate() is interrupted, then the dentry will be invalidated, possibly resulting in submounts being unmounted. Reported-by: Xu Rongbo <xurongbo@baidu.com> Closes: https://lore.kernel.org/all/CAJfpegswN_CJJ6C3RZiaK6rpFmNyWmXfaEpnQUJ42KCwNF5tWw@mail.g...
```diff diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c index 5a4a7155cf1c..f67bef9d83c4 100644 --- a/fs/fuse/dir.c +++ b/fs/fuse/dir.c @@ -258,7 +258,7 @@ static int fuse_dentry_revalidate(struct dentry *entry, unsigned int flags) spin_unlock(&fi->lock); } kfree(forget); - if (ret == -ENOMEM) + if (ret == -ENOM...
3066ff93476c35679cb07a97cce37d9bb07632ff
Analyze and fix the following issue in the Linux kernel code: fuse: Apply flags2 only when userspace set the FUSE_INIT_EXT
Problem Details: This is just a safety precaution to avoid checking flags on memory that was initialized on the user space side. libfuse zeroes struct fuse_init_out outarg, but this is not guranteed to be done in all implementations. Better is to act on flags and to only apply flags2 when FUSE_INIT_EXT is set. There ...
```diff diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index 660be31aaabc..f19d748890f0 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -1134,7 +1134,10 @@ static void process_init_reply(struct fuse_mount *fm, struct fuse_args *args, process_init_limits(fc, arg); if (arg->minor >= 6) { - u64 flags = arg...
30c60dda219ddda0bc6ff6ac55d493d9db8be4fa
Analyze and fix the following issue in the Linux kernel code: KVM: arm64: Use raw_smp_processor_id() in kvm_pmu_probe_armpmu()
Problem Details: Sebastian reports that commit 1c913a1c35aa ("KVM: arm64: Iterate arm_pmus list to probe for default PMU") introduced the following splat with CONFIG_DEBUG_PREEMPT enabled: [70506.110187] BUG: using smp_processor_id() in preemptible [00000000] code: qemu-system-aar/3078242 [70506.119077] caller is debu...
```diff diff --git a/arch/arm64/kvm/pmu-emul.c b/arch/arm64/kvm/pmu-emul.c index 491ca7eb2a4c..560650972478 100644 --- a/arch/arm64/kvm/pmu-emul.c +++ b/arch/arm64/kvm/pmu-emul.c @@ -700,7 +700,25 @@ static struct arm_pmu *kvm_pmu_probe_armpmu(void) mutex_lock(&arm_pmus_lock); - cpu = smp_processor_id(); + /* + ...
1caa71a7a600f7781ce05ef1e84701c459653663
Analyze and fix the following issue in the Linux kernel code: KVM: arm64: Restore GICv2-on-GICv3 functionality
Problem Details: When reworking the vgic locking, the vgic distributor registration got simplified, which was a very good cleanup. But just a tad too radical, as we now register the *native* vgic only, ignoring the GICv2-on-GICv3 that allows pre-historic VMs (or so I thought) to run. As it turns out, QEMU still defaul...
```diff diff --git a/arch/arm64/kvm/vgic/vgic-init.c b/arch/arm64/kvm/vgic/vgic-init.c index 6eafc2c45cfc..c8c3cb812783 100644 --- a/arch/arm64/kvm/vgic/vgic-init.c +++ b/arch/arm64/kvm/vgic/vgic-init.c @@ -446,6 +446,7 @@ int vgic_lazy_init(struct kvm *kvm) int kvm_vgic_map_resources(struct kvm *kvm) { struct vgic...
5cadfbd5a11e5495cac217534c5f788168b1afd7
Analyze and fix the following issue in the Linux kernel code: fuse: add feature flag for expire-only
Problem Details: Add an init flag idicating whether the FUSE_EXPIRE_ONLY flag of FUSE_NOTIFY_INVAL_ENTRY is effective. This is needed for backports of this feature, otherwise the server could just check the protocol version. Fixes: 4f8d37020e1f ("fuse: add "expire only" mode to FUSE_NOTIFY_INVAL_ENTRY") Cc: <stable@v...
```diff diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index d66070af145d..660be31aaabc 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -1254,7 +1254,8 @@ void fuse_send_init(struct fuse_mount *fm) FUSE_ABORT_ERROR | FUSE_MAX_PAGES | FUSE_CACHE_SYMLINKS | FUSE_NO_OPENDIR_SUPPORT | FUSE_EXPLICIT_INVAL_DATA |...
49a0a3731596fc004db6eec3fc674d92a09ef383
Analyze and fix the following issue in the Linux kernel code: riscv: Check the virtual alignment before choosing a map size
Problem Details: We used to only check the alignment of the physical address to decide which mapping would fit for a certain region of the linear mapping, but it is not enough since the virtual address must also be aligned, so check that too. Fixes: 3335068f8721 ("riscv: Use PUD/P4D/PGD pages for the linear mapping") ...
```diff diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index 38c4b4d6b64f..4fa420faa780 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -660,18 +660,19 @@ void __init create_pgd_mapping(pgd_t *pgdp, create_pgd_next_mapping(nextp, va, pa, sz, prot); } -static uintptr_t __init best_map_size...
25abe0db92437fde463204c3e4eb5a71b62d6e5d
Analyze and fix the following issue in the Linux kernel code: riscv: Fix kfence now that the linear mapping can be backed by PUD/P4D/PGD
Problem Details: RISC-V Kfence implementation used to rely on the fact the linear mapping was backed by at most PMD hugepages, which is not true anymore since commit 3335068f8721 ("riscv: Use PUD/P4D/PGD pages for the linear mapping"). Instead of splitting PUD/P4D/PGD mappings afterwards, directly map the kfence pool ...
```diff diff --git a/arch/riscv/include/asm/kfence.h b/arch/riscv/include/asm/kfence.h index d887a54042aa..0bbffd528096 100644 --- a/arch/riscv/include/asm/kfence.h +++ b/arch/riscv/include/asm/kfence.h @@ -8,41 +8,8 @@ #include <asm-generic/pgalloc.h> #include <asm/pgtable.h> -static inline int split_pmd_page(unsi...
6569fc12e442ea973d96db39e542aa19a7bc3a79
Analyze and fix the following issue in the Linux kernel code: riscv: mm: Ensure prot of VM_WRITE and VM_EXEC must be readable
Problem Details: Commit 8aeb7b17f04e ("RISC-V: Make mmap() with PROT_WRITE imply PROT_READ") allows riscv to use mmap with PROT_WRITE only, and meanwhile mmap with w+x is also permitted. However, when userspace tries to access this page with PROT_WRITE|PROT_EXEC, which causes infinite loop at load page fault as well as...
```diff diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h index 2258b27173b0..75970ee2bda2 100644 --- a/arch/riscv/include/asm/pgtable.h +++ b/arch/riscv/include/asm/pgtable.h @@ -165,8 +165,7 @@ extern struct pt_alloc_ops pt_ops __initdata; _PAGE_EXEC | _PAGE_WRITE) #define PAG...
5ae8afd41ea5a1767d0b683ffa8f9ff3d9c7e68c
Analyze and fix the following issue in the Linux kernel code: ARM: dts: keystone: Fix EEPROM node names
Problem Details: These should follow the standard EEPROM node naming convention. Signed-off-by: Andrew Davis <afd@ti.com> Link: https://lore.kernel.org/r/20230515183515.509371-3-afd@ti.com Signed-off-by: Nishanth Menon <nm@ti.com>
```diff diff --git a/arch/arm/boot/dts/keystone-k2e-evm.dts b/arch/arm/boot/dts/keystone-k2e-evm.dts index abd5aef8b87d..04e0759a2527 100644 --- a/arch/arm/boot/dts/keystone-k2e-evm.dts +++ b/arch/arm/boot/dts/keystone-k2e-evm.dts @@ -78,7 +78,7 @@ }; &i2c0 { - dtt@50 { + eeprom@50 { compatible = "atmel,24c1024"...
1341c7d2ccf42ed91aea80b8579d35bc1ea381e2
Analyze and fix the following issue in the Linux kernel code: block: fix rootwait=
Problem Details: Failures to look up the gendisk must return -ENODEV so that rootwait retries the lookup instead of -EINVAL which exits early. Fixes: cf056a431215 ("init: improve the name_to_dev_t interface") Reported-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Fabio...
```diff diff --git a/block/early-lookup.c b/block/early-lookup.c index 3ff0d2e4dcbf..48ea3e982419 100644 --- a/block/early-lookup.c +++ b/block/early-lookup.c @@ -181,7 +181,7 @@ static int __init devt_from_devname(const char *name, dev_t *devt) *p = '\0'; *devt = blk_lookup_devt(s, part); if (*devt) - return 0;...
3d2af77e31ade05ff7ccc3658c3635ec1bea0979
Analyze and fix the following issue in the Linux kernel code: blk-cgroup: Reinit blkg_iostat_set after clearing in blkcg_reset_stats()
Problem Details: When blkg_alloc() is called to allocate a blkcg_gq structure with the associated blkg_iostat_set's, there are 2 fields within blkg_iostat_set that requires proper initialization - blkg & sync. The former field was introduced by commit 3b8cc6298724 ("blk-cgroup: Optimize blkcg_rstat_flush()") while the ...
```diff diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index 1c6716f51fff..cab33bd4f252 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -610,8 +610,13 @@ static int blkcg_reset_stats(struct cgroup_subsys_state *css, struct blkg_iostat_set *bis = per_cpu_ptr(blkg->iostat_cpu, cpu); memset(...
a7cfa0af0c88353b4eb59db5a2a0fbe35329b3f9
Analyze and fix the following issue in the Linux kernel code: blk-ioc: fix recursive spin_lock/unlock_irq() in ioc_clear_queue()
Problem Details: Recursive spin_lock/unlock_irq() is not safe, because spin_unlock_irq() will enable irq unconditionally: spin_lock_irq queue_lock -> disable irq spin_lock_irq ioc->lock spin_unlock_irq ioc->lock -> enable irq /* * AA dead lock will be triggered if current context is preempted by irq, * and irq try t...
```diff diff --git a/block/blk-ioc.c b/block/blk-ioc.c index d5db92e62c43..25dd4db11121 100644 --- a/block/blk-ioc.c +++ b/block/blk-ioc.c @@ -179,9 +179,9 @@ void ioc_clear_queue(struct request_queue *q) * Other context won't hold ioc lock to wait for queue_lock, see * details in ioc_release_fn(). */ - sp...
f12bc113ce904777fd6ca003b473b427782b3dde
Analyze and fix the following issue in the Linux kernel code: nbd: Add the maximum limit of allocated index in nbd_dev_add
Problem Details: If the index allocated by idr_alloc greater than MINORMASK >> part_shift, the device number will overflow, resulting in failure to create a block device. Fix it by imiting the size of the max allocation. Signed-off-by: Zhong Jinghua <zhongjinghua@huawei.com> Reviewed-by: Christoph Hellwig <hch@lst.de...
```diff diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c index 65ecde3e2a5b..6457a094abcc 100644 --- a/drivers/block/nbd.c +++ b/drivers/block/nbd.c @@ -1776,7 +1776,8 @@ static struct nbd_device *nbd_dev_add(int index, unsigned int refs) if (err == -ENOSPC) err = -EEXIST; } else { - err = idr_alloc(&nb...
43fc0a99906e04792786edf8534d8d58d1e9de0c
Analyze and fix the following issue in the Linux kernel code: kbuild: Add KBUILD_CPPFLAGS to as-option invocation
Problem Details: After commit feb843a469fb ("kbuild: add $(CLANG_FLAGS) to KBUILD_CPPFLAGS"), there is an error while building certain PowerPC assembly files with clang: arch/powerpc/lib/copypage_power7.S: Assembler messages: arch/powerpc/lib/copypage_power7.S:34: Error: junk at end of line: `0b01000' arch/power...
```diff diff --git a/scripts/Makefile.compiler b/scripts/Makefile.compiler index 437013f8def3..e31f18625fcf 100644 --- a/scripts/Makefile.compiler +++ b/scripts/Makefile.compiler @@ -32,7 +32,7 @@ try-run = $(shell set -e; \ # Usage: aflags-y += $(call as-option,-Wa$(comma)-isa=foo,) as-option = $(call try-run,\ -...
ec336aa83162fe0f3d554baed2d4e2589b69ec6e
Analyze and fix the following issue in the Linux kernel code: scripts/mksysmap: Fix badly escaped '$'
Problem Details: The backslash characters escaping '$' in the command to sed (intended to prevent it from interpreting '$' as "end-of-line") are currently being consumed by the Shell (where they mean that sh should not evaluate what follows '$' as a variable name). This means that sed -e "/ \$/d" executes the scr...
```diff diff --git a/scripts/mksysmap b/scripts/mksysmap index cb3b1fff3eee..ec3338526102 100755 --- a/scripts/mksysmap +++ b/scripts/mksysmap @@ -32,7 +32,7 @@ ${NM} -n ${1} | sed >${2} -e " # (do not forget a space before each pattern) # local symbols for ARM, MIPS, etc. -/ \$/d +/ \\$/d # local labels, .LBB,...
20ff36856fe00879f82de71fe6f1482ca1b72334
Analyze and fix the following issue in the Linux kernel code: modpost: propagate W=1 build option to modpost
Problem Details: "No build warning" is a strong requirement these days, so you must fix all issues before enabling a new warning flag. We often add a new warning to W=1 first so that the kbuild test robot blocks new breakages. This commit allows modpost to show extra warnings only when W=1 (or KBUILD_EXTRA_WARN=1) is...
```diff diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost index 0980c58d8afc..074e27c0c140 100644 --- a/scripts/Makefile.modpost +++ b/scripts/Makefile.modpost @@ -47,6 +47,7 @@ modpost-args = \ $(if $(KBUILD_MODPOST_WARN),-w) \ $(if $(KBUILD_NSDEPS),-d $(MODULES_NSDEPS)) \ $(if ...
b00de0000a69579f4d730077fe3ea8ca31404255
Analyze and fix the following issue in the Linux kernel code: regulator: qcom-rpmh: Fix regulators for PM8550
Problem Details: The PM8550 uses only NLDOs 515 and the LDO 6 through 8 are low voltage type, so fix accordingly. Fixes: e6e3776d682d ("regulator: qcom-rpmh: Add support for PM8550 regulators") Signed-off-by: Abel Vesa <abel.vesa@linaro.org> Link: https://lore.kernel.org/r/20230605115607.921308-1-abel.vesa@linaro.org ...
```diff diff --git a/drivers/regulator/qcom-rpmh-regulator.c b/drivers/regulator/qcom-rpmh-regulator.c index b0a58c62b1e2..f3b280af0773 100644 --- a/drivers/regulator/qcom-rpmh-regulator.c +++ b/drivers/regulator/qcom-rpmh-regulator.c @@ -1057,21 +1057,21 @@ static const struct rpmh_vreg_init_data pm8450_vreg_data[] = ...
484ede9bcb031a98880817480b685cac0ec96f2b
Analyze and fix the following issue in the Linux kernel code: ASoC: mediatek: mt8188-mt6359: add i2c dependency
Problem Details: The newly added driver is missing this dependency, causing a possible build failure: WARNING: unmet direct dependencies detected for SND_SOC_MAX98390 WARNING: unmet direct dependencies detected for SND_SOC_NAU8825 Depends on [m]: SOUND [=y] && !UML && SND [=y] && SND_SOC [=y] && I2C [=m] Selected ...
```diff diff --git a/sound/soc/mediatek/Kconfig b/sound/soc/mediatek/Kconfig index 4ea012342b52..90db67e0ce4f 100644 --- a/sound/soc/mediatek/Kconfig +++ b/sound/soc/mediatek/Kconfig @@ -223,6 +223,7 @@ config SND_SOC_MT8188 config SND_SOC_MT8188_MT6359 tristate "ASoC Audio driver for MT8188 with MT6359 and I2S code...
4d3af20eaf3fcd481a797738bb46634e37f4a1cc
Analyze and fix the following issue in the Linux kernel code: dma-mapping: fix a Kconfig typo
Problem Details: 'thing' -> 'think' Signed-off-by: Sui Jingfeng <suijingfeng@loongson.cn> Signed-off-by: Christoph Hellwig <hch@lst.de>
```diff diff --git a/kernel/dma/Kconfig b/kernel/dma/Kconfig index 6677d0e64d27..fd35ed4c67b8 100644 --- a/kernel/dma/Kconfig +++ b/kernel/dma/Kconfig @@ -39,7 +39,7 @@ config ARCH_HAS_DMA_SET_MASK # # Select this option if the architecture needs special handling for # DMA_ATTR_WRITE_COMBINE. Normally the "uncached...
f46fab0e36e611a2389d3843f34658c849b6bd60
Analyze and fix the following issue in the Linux kernel code: bpf: Add extra path pointer check to d_path helper
Problem Details: Anastasios reported crash on stable 5.15 kernel with following BPF attached to lsm hook: SEC("lsm.s/bprm_creds_for_exec") int BPF_PROG(bprm_creds_for_exec, struct linux_binprm *bprm) { struct path *path = &bprm->executable->f_path; char p[128] = { 0 }; bpf_d_path(p...
```diff diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c index 9a050e36dc6c..1f4b07da327a 100644 --- a/kernel/trace/bpf_trace.c +++ b/kernel/trace/bpf_trace.c @@ -900,13 +900,23 @@ static const struct bpf_func_proto bpf_send_signal_thread_proto = { BPF_CALL_3(bpf_d_path, struct path *, path, char *, ...
8b64d420fe2450f82848178506d3e3a0bd195539
Analyze and fix the following issue in the Linux kernel code: debugobjects: Recheck debug_objects_enabled before reporting
Problem Details: syzbot is reporting false a positive ODEBUG message immediately after ODEBUG was disabled due to OOM. [ 1062.309646][T22911] ODEBUG: Out of memory. ODEBUG disabled [ 1062.886755][ T5171] ------------[ cut here ]------------ [ 1062.892770][ T5171] ODEBUG: assert_init not available (active state 0...
```diff diff --git a/lib/debugobjects.c b/lib/debugobjects.c index 984985c39c9b..a517256a270b 100644 --- a/lib/debugobjects.c +++ b/lib/debugobjects.c @@ -498,6 +498,15 @@ static void debug_print_object(struct debug_obj *obj, char *msg) const struct debug_obj_descr *descr = obj->descr; static int limit; + /* + *...
5b6d0b91f84cff3f28724076f93f6f9e2ef8d775
Analyze and fix the following issue in the Linux kernel code: spi: dw: Remove misleading comment for Mount Evans SoC
Problem Details: Remove a misleading comment about the DMA operations of the Intel Mount Evans SoC's SPI Controller as requested by Serge. Signed-off-by: Abe Kohandel <abe.kohandel@intel.com> Link: https://lore.kernel.org/linux-spi/20230606191333.247ucbf7h3tlooxf@mobilestation/ Fixes: 0760d5d0e9f0 ("spi: dw: Add compa...
```diff diff --git a/drivers/spi/spi-dw-mmio.c b/drivers/spi/spi-dw-mmio.c index c1d16157de61..a699ce496cc5 100644 --- a/drivers/spi/spi-dw-mmio.c +++ b/drivers/spi/spi-dw-mmio.c @@ -237,14 +237,7 @@ static int dw_spi_intel_init(struct platform_device *pdev, } /* - * The Intel Mount Evans SoC's Integrated Managemen...
f751b99255cacd9ffe8c4bbf99767ad670cee1f7
Analyze and fix the following issue in the Linux kernel code: ASoC: SOF: Intel: fix SoundWire/HDaudio mutual exclusion
Problem Details: The functionality described in Commit 61bef9e68dca ("ASoC: SOF: Intel: hda: enforce exclusion between HDaudio and SoundWire") does not seem to be properly implemented with two issues that need to be corrected. a) The test used is incorrect when DisplayAudio codecs are not supported. b) Conversely whe...
```diff diff --git a/sound/soc/sof/intel/hda.c b/sound/soc/sof/intel/hda.c index 066f27e3402f..ec31a5762ddf 100644 --- a/sound/soc/sof/intel/hda.c +++ b/sound/soc/sof/intel/hda.c @@ -1368,12 +1368,22 @@ static void hda_generic_machine_select(struct snd_sof_dev *sdev, hda_mach->mach_params.dmic_num = dmic_num; p...
44f8baaf230c655c249467ca415b570deca8df77
Analyze and fix the following issue in the Linux kernel code: net: sched: fix possible refcount leak in tc_chain_tmplt_add()
Problem Details: try_module_get will be called in tcf_proto_lookup_ops. So module_put needs to be called to drop the refcount if ops don't implement the required function. Fixes: 9f407f1768d3 ("net: sched: introduce chain templates") Signed-off-by: Hangyu Hua <hbh25y@gmail.com> Reviewed-by: Larysa Zaremba <larysa.zare...
```diff diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c index b2432ee04f31..c877a6343fd4 100644 --- a/net/sched/cls_api.c +++ b/net/sched/cls_api.c @@ -2950,6 +2950,7 @@ static int tc_chain_tmplt_add(struct tcf_chain *chain, struct net *net, return PTR_ERR(ops); if (!ops->tmplt_create || !ops->tmplt_destroy...
e7214663e023be5e518e8d0d8f2dca6848731652
Analyze and fix the following issue in the Linux kernel code: net: txgbe: Avoid passing uninitialised parameter to pci_wake_from_d3()
Problem Details: txgbe_shutdown() relies on txgbe_dev_shutdown() to initialise wake by passing it by reference. However, txgbe_dev_shutdown() doesn't use this parameter at all. wake is then passed uninitialised by txgbe_dev_shutdown() to pci_wake_from_d3(). Resolve this problem by: * Removing the unused parameter fro...
```diff diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c b/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c index 0f0d9fa1cde1..cfe47f3d2503 100644 --- a/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c +++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c @@ -457,7 +457,7 @@ static int txgbe_close(struct net...
682881ee45c81daa883dcd4fe613b0b0d988bb22
Analyze and fix the following issue in the Linux kernel code: net: sched: act_police: fix sparse errors in tcf_police_dump()
Problem Details: Fixes following sparse errors: net/sched/act_police.c:360:28: warning: dereference of noderef expression net/sched/act_police.c:362:45: warning: dereference of noderef expression net/sched/act_police.c:362:45: warning: dereference of noderef expression net/sched/act_police.c:368:28: warning: dereferen...
```diff diff --git a/net/sched/act_police.c b/net/sched/act_police.c index 227cba58ce9f..2e9dce03d1ec 100644 --- a/net/sched/act_police.c +++ b/net/sched/act_police.c @@ -357,23 +357,23 @@ static int tcf_police_dump(struct sk_buff *skb, struct tc_action *a, opt.burst = PSCHED_NS2TICKS(p->tcfp_burst); if (p->rate_pr...
de9df6c6b27e22d7bdd20107947ef3a20e687de5
Analyze and fix the following issue in the Linux kernel code: net: openvswitch: fix upcall counter access before allocation
Problem Details: Currently, the per cpu upcall counters are allocated after the vport is created and inserted into the system. This could lead to the datapath accessing the counters before they are allocated resulting in a kernel Oops. Here is an example: PID: 59693 TASK: ffff0005f4f51500 CPU: 0 COMMAND: "ov...
```diff diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c index fcee6012293b..58f530f60172 100644 --- a/net/openvswitch/datapath.c +++ b/net/openvswitch/datapath.c @@ -236,9 +236,6 @@ void ovs_dp_detach_port(struct vport *p) /* First drop references to device. */ hlist_del_rcu(&p->dp_hash_node); ...
f71be9d084c92e0ef36e248303f32f8e4cf623da
Analyze and fix the following issue in the Linux kernel code: net: liquidio: fix mixed module-builtin object
Problem Details: With CONFIG_LIQUIDIO=m and CONFIG_LIQUIDIO_VF=y (or vice versa), $(common-objs) are linked to a module and also to vmlinux even though the expected CFLAGS are different between builtins and modules. This is the same situation as fixed by commit 637a642f5ca5 ("zstd: Fixing mixed module-builtin objects"...
```diff diff --git a/drivers/net/ethernet/cavium/Kconfig b/drivers/net/ethernet/cavium/Kconfig index 1c76c95b0b27..ca742cc146d7 100644 --- a/drivers/net/ethernet/cavium/Kconfig +++ b/drivers/net/ethernet/cavium/Kconfig @@ -62,6 +62,9 @@ config CAVIUM_PTP Precision Time Protocol or other purposes. Timestamps can be...
886bc7d6ed3357975c5f1d3c784da96000d4bbb4
Analyze and fix the following issue in the Linux kernel code: net: sched: move rtm_tca_policy declaration to include file
Problem Details: rtm_tca_policy is used from net/sched/sch_api.c and net/sched/cls_api.c, thus should be declared in an include file. This fixes the following sparse warning: net/sched/sch_api.c:1434:25: warning: symbol 'rtm_tca_policy' was not declared. Should it be static? Fixes: e331473fee3d ("net/sched: cls_api: ...
```diff diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h index f436688b6efc..5722931d83d4 100644 --- a/include/net/pkt_sched.h +++ b/include/net/pkt_sched.h @@ -127,6 +127,8 @@ static inline void qdisc_run(struct Qdisc *q) } } +extern const struct nla_policy rtm_tca_policy[TCA_MAX + 1]; + /* Calcula...
8f7913c04f6a7b90bcf998ece17395d7090f6d44
Analyze and fix the following issue in the Linux kernel code: Input: ads7846 - Fix usage of match data
Problem Details: device_get_match_data() returns the match data directly, fix this up and fix the probe crash. Fixes: 767d83361aaa ("Input: ads7846 - Convert to use software nodes") Reported-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Dmitry Torokhov <dmitry...
```diff diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c index 40eb27f1b23f..fe6fe8acd8a6 100644 --- a/drivers/input/touchscreen/ads7846.c +++ b/drivers/input/touchscreen/ads7846.c @@ -1117,20 +1117,13 @@ MODULE_DEVICE_TABLE(of, ads7846_dt_ids); static const struct ads7846_platfor...
ca0aa17f2db3468fd017038d23a78e17388e2f67
Analyze and fix the following issue in the Linux kernel code: i2c: sprd: Delete i2c adapter in .remove's error path
Problem Details: If pm runtime resume fails the .remove callback used to exit early. This resulted in an error message by the driver core but the device gets removed anyhow. This lets the registered i2c adapter stay around with an unbound parent device. So only skip clk disabling if resume failed, but do delete the ad...
```diff diff --git a/drivers/i2c/busses/i2c-sprd.c b/drivers/i2c/busses/i2c-sprd.c index 4fe15cd78907..ffc54fbf814d 100644 --- a/drivers/i2c/busses/i2c-sprd.c +++ b/drivers/i2c/busses/i2c-sprd.c @@ -576,12 +576,14 @@ static int sprd_i2c_remove(struct platform_device *pdev) struct sprd_i2c *i2c_dev = platform_get_drvd...