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85fe0b324c830ac671b811efc70ea80c3dcb2390
Analyze and fix the following issue in the Linux kernel code: devlink: make devlink_param_driverinit_value_set() return void
Problem Details: devlink_param_driverinit_value_set() currently returns int with possible error, but no user is checking it anyway. The only reason for a fail is a driver bug. So convert the function to return void and put WARN_ONs on error paths. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: Jakub Kicinski...
```diff diff --git a/include/net/devlink.h b/include/net/devlink.h index cf74b6391896..e0d773dfa637 100644 --- a/include/net/devlink.h +++ b/include/net/devlink.h @@ -1775,8 +1775,8 @@ void devlink_params_unregister(struct devlink *devlink, size_t params_count); int devlink_param_driverinit_value_get(struct...
bb9bb6bfd1c37b1c0786248c2785536146603fa8
Analyze and fix the following issue in the Linux kernel code: devlink: don't work with possible NULL pointer in devlink_param_unregister()
Problem Details: There is a WARN_ON checking the param_item for being NULL when the param is not inserted in the list. That indicates a driver BUG. Instead of continuing to work with NULL pointer with its consequences, return. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Re...
```diff diff --git a/net/devlink/leftover.c b/net/devlink/leftover.c index b1216b8f0acc..fca2b6661362 100644 --- a/net/devlink/leftover.c +++ b/net/devlink/leftover.c @@ -10824,7 +10824,8 @@ static void devlink_param_unregister(struct devlink *devlink, param_item = devlink_param_find_by_name(&devlink->param_list...
6c488fbb1de2bf3821307f4a81449d7b2f300b34
Analyze and fix the following issue in the Linux kernel code: dt-bindings: pinctrl: mediatek: Fix child node name patterns
Problem Details: The child node name patterns in Mediatek pinctrl bindings don't match reality. I don't know where '-[0-9]+$' came from, but I don't see any nodes with a matching pattern. Also, patterns such as 'pins' or 'mux' are ambiguous because any prefix or suffix is allowed. If that's desired, it should be explic...
```diff diff --git a/Documentation/devicetree/bindings/pinctrl/mediatek,mt65xx-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/mediatek,mt65xx-pinctrl.yaml index 1b44335b1e94..a55c8e4ff26e 100644 --- a/Documentation/devicetree/bindings/pinctrl/mediatek,mt65xx-pinctrl.yaml +++ b/Documentation/devicetree/binding...
251a2b11851531526260db1dbc5673a7d6177895
Analyze and fix the following issue in the Linux kernel code: ASoC: SOF: ipc4-pcm: Do not run the trigger pipelines if no spipe is stored
Problem Details: If the pipeline setup fails at the first widget/pipeline then we will have no spipe stored under the pipeline_list->pipelines, the pipeline_list->count is 0. If this is the case we would have a NULL pointer dereference if the execution is allowed to proceed. Check for this condition along with the pi...
```diff diff --git a/sound/soc/sof/ipc4-pcm.c b/sound/soc/sof/ipc4-pcm.c index 2d89d3708ed0..521090d4498d 100644 --- a/sound/soc/sof/ipc4-pcm.c +++ b/sound/soc/sof/ipc4-pcm.c @@ -213,7 +213,7 @@ static int sof_ipc4_trigger_pipelines(struct snd_soc_component *component, pipeline_list = &spcm->stream[substream->stream]...
82b18242ae68214c44ccb13e993c2bc925f28428
Analyze and fix the following issue in the Linux kernel code: ASoC: SOF: pcm: do not free widgets during suspend trigger
Problem Details: IPC3 and IPC4 have different requirements for the order in which the FE CPU and BE CPU DAI trigger callbacks must be invoked. With a regular PCM start/stop, pipeline widgets are set up during hw_params and freed during hw_free. But when the system is suspended when a PCM is running, pipeline widgets a...
```diff diff --git a/sound/soc/sof/ipc3-topology.c b/sound/soc/sof/ipc3-topology.c index 989395999d6e..72ac1725af0d 100644 --- a/sound/soc/sof/ipc3-topology.c +++ b/sound/soc/sof/ipc3-topology.c @@ -2264,7 +2264,7 @@ static int sof_tear_down_left_over_pipelines(struct snd_sof_dev *sdev) for_each_pcm_streams(dir) { ...
73ea660947b52969214473434396a33d283c5ac8
Analyze and fix the following issue in the Linux kernel code: ASoC: SOF: sof-audio: Set up/free DAI/AIF widgets only once
Problem Details: Calling the sof_widget_setup/free() for the DAI/AIF widgets inside the snd_soc_dapm_widget_for_each_sink_path() loop will end up setting up or freeing the widget multiple times if there are multiple paths leaving the widget. Fix this by moving the widget setup/free for the starting widget in each path ...
```diff diff --git a/sound/soc/sof/sof-audio.c b/sound/soc/sof/sof-audio.c index f17d405a9da9..d242a3076ed0 100644 --- a/sound/soc/sof/sof-audio.c +++ b/sound/soc/sof/sof-audio.c @@ -357,19 +357,16 @@ static int sof_free_widgets_in_path(struct snd_sof_dev *sdev, struct snd_soc_dap int err; int ret = 0; - /* free ...
ac62f60619fa5b53144fefdca6d2a219125a0228
Analyze and fix the following issue in the Linux kernel code: net: add missing includes of linux/net.h
Problem Details: linux/net.h will soon not be included by linux/skbuff.h. Fix the cases where source files were depending on the implicit include. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
```diff diff --git a/drivers/net/wireless/intersil/orinoco/hermes.c b/drivers/net/wireless/intersil/orinoco/hermes.c index 256946552742..4888286727ff 100644 --- a/drivers/net/wireless/intersil/orinoco/hermes.c +++ b/drivers/net/wireless/intersil/orinoco/hermes.c @@ -38,6 +38,7 @@ * under either the MPL or the GPL. ...
6dd88fd59da84631b5fe5c8176931c38cfa3b265
Analyze and fix the following issue in the Linux kernel code: vhost-scsi: unbreak any layout for response
Problem Details: Al Viro said: """ Since "vhost/scsi: fix reuse of &vq->iov[out] in response" we have this: cmd->tvc_resp_iov = vq->iov[vc.out]; cmd->tvc_in_iovs = vc.in; combined with iov_iter_init(&iov_iter, ITER_DEST, &cmd->tvc_resp_iov, ...
```diff diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c index dca6346d75b3..d5ecb8876fc9 100644 --- a/drivers/vhost/scsi.c +++ b/drivers/vhost/scsi.c @@ -80,7 +80,7 @@ struct vhost_scsi_cmd { struct scatterlist *tvc_prot_sgl; struct page **tvc_upages; /* Pointer to response header iovec */ - struct iovec...
3f7b75abf41cc4143aa295f62acbb060a012868d
Analyze and fix the following issue in the Linux kernel code: tools/virtio: fix the vringh test for virtio ring changes
Problem Details: Fix the build caused by missing kmsan_handle_dma() and is_power_of_2() that are used in drivers/virtio/virtio_ring.c. Signed-off-by: Shunsuke Mie <mie@igel.co.jp> Message-Id: <20230110034310.779744-1-mie@igel.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
```diff diff --git a/tools/virtio/linux/bug.h b/tools/virtio/linux/bug.h index 813baf13f62a..51a919083d9b 100644 --- a/tools/virtio/linux/bug.h +++ b/tools/virtio/linux/bug.h @@ -1,13 +1,11 @@ /* SPDX-License-Identifier: GPL-2.0 */ -#ifndef BUG_H -#define BUG_H +#ifndef _LINUX_BUG_H +#define _LINUX_BUG_H #include <...
9526f9a2b762af16be94a72aca5d65c677d28f50
Analyze and fix the following issue in the Linux kernel code: vhost/net: Clear the pending messages when the backend is removed
Problem Details: When the vhost iotlb is used along with a guest virtual iommu and the guest gets rebooted, some MISS messages may have been recorded just before the reboot and spuriously executed by the virtual iommu after the reboot. As vhost does not have any explicit reset user API, VHOST_NET_SET_BACKEND looks a r...
```diff diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 9af19b0cf3b7..4c538b30fd76 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -1511,6 +1511,9 @@ static long vhost_net_set_backend(struct vhost_net *n, unsigned index, int fd) nvq = &n->vqs[index]; mutex_lock(&vq->mutex); + if (fd == ...
445110941eb94709216363f9d807d2508e64abd7
Analyze and fix the following issue in the Linux kernel code: leds: led-class: Add missing put_device() to led_put()
Problem Details: led_put() is used to "undo" a successful of_led_get() call, of_led_get() uses class_find_device_by_of_node() which returns a reference to the device which must be free-ed with put_device() when the caller is done with it. Add a put_device() call to led_put() to free the reference returned by class_fin...
```diff diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c index 6a8ea94834fa..7391d2cf1370 100644 --- a/drivers/leds/led-class.c +++ b/drivers/leds/led-class.c @@ -241,8 +241,10 @@ struct led_classdev *of_led_get(struct device_node *np, int index) led_cdev = dev_get_drvdata(led_dev); - if (!try_mod...
42a9a08b9aa69134981d1564f95eb06c0469eff3
Analyze and fix the following issue in the Linux kernel code: crypto: engine - Fix excess parameter doc warning
Problem Details: The engine parameter should not be marked for kernel doc as it triggers a warning. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
```diff diff --git a/crypto/crypto_engine.c b/crypto/crypto_engine.c index bb8e77077f02..64dc9aa3ca24 100644 --- a/crypto/crypto_engine.c +++ b/crypto/crypto_engine.c @@ -499,7 +499,7 @@ EXPORT_SYMBOL_GPL(crypto_engine_stop); * This has the form: * callback(struct crypto_engine *engine...
51c082514c2dedf2711c99d93c196cc4eedceb40
Analyze and fix the following issue in the Linux kernel code: crypto: xts - Handle EBUSY correctly
Problem Details: As it is xts only handles the special return value of EINPROGRESS, which means that in all other cases it will free data related to the request. However, as the caller of xts may specify MAY_BACKLOG, we also need to expect EBUSY and treat it in the same way. Otherwise backlogged requests will trigger...
```diff diff --git a/crypto/xts.c b/crypto/xts.c index 63c85b9e64e0..de6cbcf69bbd 100644 --- a/crypto/xts.c +++ b/crypto/xts.c @@ -203,12 +203,12 @@ static void xts_encrypt_done(struct crypto_async_request *areq, int err) if (!err) { struct xts_request_ctx *rctx = skcipher_request_ctx(req); - rctx->subreq.base....
bcababfc60ccc622268b2317a22fabd879fbc0a3
Analyze and fix the following issue in the Linux kernel code: mfd: intel-m10-bmc: Prefix register defines with M10BMC_N3000
Problem Details: Prefix the M10BMC defines register defines with M10BMC_N3000 to make it more obvious these are related to some board type. All current non-N3000 board types have the same layout so they'll be reused. The less generic makes it more obvious they're not meant for the generic/interface agnostic code. Revi...
```diff diff --git a/drivers/mfd/intel-m10-bmc-core.c b/drivers/mfd/intel-m10-bmc-core.c index cbea8d4f68fa..dac9cf7bcb4a 100644 --- a/drivers/mfd/intel-m10-bmc-core.c +++ b/drivers/mfd/intel-m10-bmc-core.c @@ -58,12 +58,12 @@ static ssize_t mac_address_show(struct device *dev, return ret; return sysfs_emit(buf,...
eca5bd666b0aa7dc0bca63292e4778968241134e
Analyze and fix the following issue in the Linux kernel code: mmc: atmel-mci: fix race between stop command and start of next command
Problem Details: This commit fixes a race between completion of stop command and start of a new command. Previously the command ready interrupt was enabled before stop command was written to the command register. This caused the command ready interrupt to fire immediately since the CMDRDY flag is asserted constantly wh...
```diff diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c index bb9bbf1c927b..dd18440a90c5 100644 --- a/drivers/mmc/host/atmel-mci.c +++ b/drivers/mmc/host/atmel-mci.c @@ -1817,7 +1817,6 @@ static void atmci_tasklet_func(struct tasklet_struct *t) atmci_writel(host, ATMCI_IER, ATMCI_NOTBUSY);...
17ab1ea679be48d905559d968a7622f5f212de6e
Analyze and fix the following issue in the Linux kernel code: accel/ivpu: PM: remove broken ivpu_dbg() statements
Problem Details: When CONFIG_PM is disabled, the driver fails to build: drivers/accel/ivpu/ivpu_pm.c: In function 'ivpu_rpm_get': drivers/accel/ivpu/ivpu_pm.c:240:84: error: 'struct dev_pm_info' has no member named 'usage_count' 240 | ivpu_dbg(vdev, RPM, "rpm_get count %d\n", atomic_read(&vdev->drm.dev->powe...
```diff diff --git a/drivers/accel/ivpu/ivpu_pm.c b/drivers/accel/ivpu/ivpu_pm.c index 553bcbd787b3..a880f1dd857e 100644 --- a/drivers/accel/ivpu/ivpu_pm.c +++ b/drivers/accel/ivpu/ivpu_pm.c @@ -237,8 +237,6 @@ int ivpu_rpm_get(struct ivpu_device *vdev) { int ret; - ivpu_dbg(vdev, RPM, "rpm_get count %d\n", atomic...
63acac8a020ea776a095c50bb4d12184cb688a9f
Analyze and fix the following issue in the Linux kernel code: arm64: dts: renesas: beacon-renesom: Fix audio clock rate
Problem Details: The WM8962 is configured so the SoC is driving the clock, and it's currently set to 24 MHz. However, when playing audio it shows the following message: wm8962 5-001a: Unsupported sysclk ratio 500 While not harmful, a better clock ratio is 512. It makes the message disappear, and it still plays s...
```diff diff --git a/arch/arm64/boot/dts/renesas/beacon-renesom-baseboard.dtsi b/arch/arm64/boot/dts/renesas/beacon-renesom-baseboard.dtsi index 3f8b6d7b2124..2e9927b97732 100644 --- a/arch/arm64/boot/dts/renesas/beacon-renesom-baseboard.dtsi +++ b/arch/arm64/boot/dts/renesas/beacon-renesom-baseboard.dtsi @@ -367,7 +36...
d7f9492dfc03153ac56ab59066a196558748f575
Analyze and fix the following issue in the Linux kernel code: arm64: dts: renesas: beacon-renesom: Fix gpio expander reference
Problem Details: The board used to originally introduce the Beacon Embedded RZ/G2[M/N/H] boards had a GPIO expander with address 20, but this was changed when the final board went to production. The production boards changed both the part itself and the address. With the incorrect address, the LCD cannot come up. If ...
```diff diff --git a/arch/arm64/boot/dts/renesas/beacon-renesom-baseboard.dtsi b/arch/arm64/boot/dts/renesas/beacon-renesom-baseboard.dtsi index d3ec8c45d5af..3f8b6d7b2124 100644 --- a/arch/arm64/boot/dts/renesas/beacon-renesom-baseboard.dtsi +++ b/arch/arm64/boot/dts/renesas/beacon-renesom-baseboard.dtsi @@ -437,20 +4...
0a9e5794b21e2d1303759ff8fe5f9215db7757ba
Analyze and fix the following issue in the Linux kernel code: xfrm: annotate data-race around use_time
Problem Details: KCSAN reported multiple cpus can update use_time at the same time. Adds READ_ONCE()/WRITE_ONCE() annotations. Note that 32bit arches are not fully protected, but they will probably no longer be supported/used in 2106. BUG: KCSAN: data-race in __xfrm_policy_check / __xfrm_policy_check write to 0xfff...
```diff diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index ed0976f8e42b..5c61ec04b839 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -336,7 +336,7 @@ static void xfrm_policy_timer(struct timer_list *t) } if (xp->lft.hard_use_expires_seconds) { time64_t tmo = xp->lft.hard_use_...
195e4aac74ce67385f95432301da6db3c2cfc72a
Analyze and fix the following issue in the Linux kernel code: xfrm: consistently use time64_t in xfrm_timer_handler()
Problem Details: For some reason, blamed commit did the right thing in xfrm_policy_timer() but did not in xfrm_timer_handler() Fixes: 386c5680e2e8 ("xfrm: use time64_t for in-kernel timestamps") Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Steffen Klassert <steffen.klassert@s...
```diff diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c index 89c731f4f0c7..5f03d1fbb98e 100644 --- a/net/xfrm/xfrm_state.c +++ b/net/xfrm/xfrm_state.c @@ -577,7 +577,7 @@ static enum hrtimer_restart xfrm_timer_handler(struct hrtimer *me) if (x->km.state == XFRM_STATE_EXPIRED) goto expired; if (x->lft...
576a1948326457fa435810a1eaebd8c4879e44e2
Analyze and fix the following issue in the Linux kernel code: staging: rtl8192e: Remove unused variables txov.., txbeokint and txbkokint
Problem Details: txoverflow, txbeokint and txbkokint are initialized and increased but never read. Remove dead code. Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> Link: https://lore.kernel.org/r/023f612dc35eca3a74c31344f7dbb168180bf437.1674675808.git.philipp.g.hortmann@gmail.com Signed-off-by: Greg Kr...
```diff diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c index ff9dc06642f6..768324cbe253 100644 --- a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c +++ b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c @@ -2181,17 +2181,12 @@ static irqreturn_t _rtl92e_irq(int irq, v...
0d55d6ec2e286cfa04babd41183c06a712237ab1
Analyze and fix the following issue in the Linux kernel code: staging: rtl8192e: Remove unused variables num_proc.., recei.. and rxov..
Problem Details: num_process_phyinfo, received_bwtype and rxoverflow are initialized and increased but never read. Remove dead code. As a result prxsc is unused which in result makes rxsc_sgien_exflg unused. Remove prxsc and rxsc_sgien_exflg as well. Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Philip...
```diff diff --git a/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c b/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c index f62547e54261..9d13fda33fbf 100644 --- a/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c +++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c @@ -1296,9 +1296,8 @@ static void _rtl92e_query_rxphystat...
9c07d8cc8837486a9e619154ffa5d391894f8715
Analyze and fix the following issue in the Linux kernel code: staging: r8188eu: fix rtw_xmitframe_enqueue error handling
Problem Details: In function rtw_xmitframe_enqueue, we can simply relay the error code from rtw_xmit_classifier. Signed-off-by: Martin Kaiser <martin@kaiser.cx> Tested-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> # Edimax N150 Link: https://lore.kernel.org/r/20230123205342.229589-20-martin@kaiser.cx Signed-off-...
```diff diff --git a/drivers/staging/r8188eu/core/rtw_xmit.c b/drivers/staging/r8188eu/core/rtw_xmit.c index ef6d3a9bffea..4f9defdbe257 100644 --- a/drivers/staging/r8188eu/core/rtw_xmit.c +++ b/drivers/staging/r8188eu/core/rtw_xmit.c @@ -1347,12 +1347,7 @@ void rtw_free_xmitframe_queue(struct xmit_priv *pxmitpriv, str...
53466ebdec614f915c691809b0861acecb941e30
Analyze and fix the following issue in the Linux kernel code: ALSA: memalloc: Workaround for Xen PV
Problem Details: We change recently the memalloc helper to use dma_alloc_noncontiguous() and the fallback to get_pages(). Although lots of issues with IOMMU (or non-IOMMU) have been addressed, but there seems still a regression on Xen PV. Interestingly, the only proper way to work is use dma_alloc_coherent(). The us...
```diff diff --git a/sound/core/memalloc.c b/sound/core/memalloc.c index 81025f50a542..f901504b5afc 100644 --- a/sound/core/memalloc.c +++ b/sound/core/memalloc.c @@ -541,16 +541,15 @@ static void *snd_dma_noncontig_alloc(struct snd_dma_buffer *dmab, size_t size) struct sg_table *sgt; void *p; +#ifdef CONFIG_SND_...
5416c9aea8323583e8696f0500b6142dfae80821
Analyze and fix the following issue in the Linux kernel code: bpf: Fix the kernel crash caused by bpf_setsockopt().
Problem Details: The kernel crash was caused by a BPF program attached to the "lsm_cgroup/socket_sock_rcv_skb" hook, which performed a call to `bpf_setsockopt()` in order to set the TCP_NODELAY flag as an example. Flags like TCP_NODELAY can prompt the kernel to flush a socket's outgoing queue, and this hook "lsm_cgroup...
```diff diff --git a/kernel/bpf/bpf_lsm.c b/kernel/bpf/bpf_lsm.c index a4a41ee3e80b..e14c822f8911 100644 --- a/kernel/bpf/bpf_lsm.c +++ b/kernel/bpf/bpf_lsm.c @@ -51,7 +51,6 @@ BTF_SET_END(bpf_lsm_current_hooks) */ BTF_SET_START(bpf_lsm_locked_sockopt_hooks) #ifdef CONFIG_SECURITY_NETWORK -BTF_ID(func, bpf_lsm_sock...
1ddc7618294084fff8d673217a9479550990ee84
Analyze and fix the following issue in the Linux kernel code: bus: mhi: ep: Change state_lock to mutex
Problem Details: state_lock, the spinlock type is meant to protect race against concurrent MHI state transitions. In mhi_ep_set_m0_state(), while the state_lock is being held, the channels are resumed in mhi_ep_resume_channels() if the previous state was M3. This causes sleeping in atomic bug, since mhi_ep_resume_chann...
```diff diff --git a/drivers/bus/mhi/ep/main.c b/drivers/bus/mhi/ep/main.c index bcaaba97ef63..528c00b232bf 100644 --- a/drivers/bus/mhi/ep/main.c +++ b/drivers/bus/mhi/ep/main.c @@ -1001,11 +1001,11 @@ static void mhi_ep_reset_worker(struct work_struct *work) mhi_ep_power_down(mhi_cntrl); - spin_lock_bh(&mhi_cnt...
8a1c24bb908f9ecbc4be0fea014df67d43161551
Analyze and fix the following issue in the Linux kernel code: bus: mhi: ep: Save channel state locally during suspend and resume
Problem Details: During suspend and resume, the channel state needs to be saved locally. Otherwise, the endpoint may access the channels while they were being suspended and causing access violations. Fix it by saving the channel state locally during suspend and resume. Cc: <stable@vger.kernel.org> # 5.19 Fixes: e4b7b...
```diff diff --git a/drivers/bus/mhi/ep/main.c b/drivers/bus/mhi/ep/main.c index 2362fcc8b32c..bcaaba97ef63 100644 --- a/drivers/bus/mhi/ep/main.c +++ b/drivers/bus/mhi/ep/main.c @@ -1122,6 +1122,7 @@ void mhi_ep_suspend_channels(struct mhi_ep_cntrl *mhi_cntrl) dev_dbg(&mhi_chan->mhi_dev->dev, "Suspending channel\...
8d6a1fea53864cd9545741f48f4ae4df804db557
Analyze and fix the following issue in the Linux kernel code: bus: mhi: ep: Move chan->lock to the start of processing queued ch ring
Problem Details: There is a good chance that while the channel ring gets processed, the STOP or RESET command for the channel might be received from the MHI host. In those cases, the entire channel ring processing needs to be protected by chan->lock to prevent the race where the corresponding channel ring might be rese...
```diff diff --git a/drivers/bus/mhi/ep/main.c b/drivers/bus/mhi/ep/main.c index 0bce6610ebf1..2362fcc8b32c 100644 --- a/drivers/bus/mhi/ep/main.c +++ b/drivers/bus/mhi/ep/main.c @@ -730,24 +730,37 @@ static void mhi_ep_ch_ring_worker(struct work_struct *work) list_del(&itr->node); ring = itr->ring; + chan = &...
8e697fcfdb9809634e268058ca743369c216b7ac
Analyze and fix the following issue in the Linux kernel code: bus: mhi: ep: Fix the debug message for MHI_PKT_TYPE_RESET_CHAN_CMD cmd
Problem Details: The debug log incorrectly mentions that STOP command is received instead of RESET command. Fix that. Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com> Link: https://lore.kernel.org/r/20221228161704.255268-5-manivannan.sadhasivam@...
```diff diff --git a/drivers/bus/mhi/ep/main.c b/drivers/bus/mhi/ep/main.c index 7d68b00bdbcf..0bce6610ebf1 100644 --- a/drivers/bus/mhi/ep/main.c +++ b/drivers/bus/mhi/ep/main.c @@ -226,7 +226,7 @@ static int mhi_ep_process_cmd_ring(struct mhi_ep_ring *ring, struct mhi_ring_ele mutex_unlock(&mhi_chan->lock); bre...
e6cebcc27519dcf1652e604c73b9fd4f416987c0
Analyze and fix the following issue in the Linux kernel code: bus: mhi: ep: Only send -ENOTCONN status if client driver is available
Problem Details: For the STOP and RESET commands, only send the channel disconnect status -ENOTCONN if client driver is available. Otherwise, it will result in null pointer dereference. Cc: <stable@vger.kernel.org> # 5.19 Fixes: e827569062a8 ("bus: mhi: ep: Add support for processing command rings") Signed-off-by: Man...
```diff diff --git a/drivers/bus/mhi/ep/main.c b/drivers/bus/mhi/ep/main.c index 8b065a3cc848..7d68b00bdbcf 100644 --- a/drivers/bus/mhi/ep/main.c +++ b/drivers/bus/mhi/ep/main.c @@ -203,9 +203,11 @@ static int mhi_ep_process_cmd_ring(struct mhi_ep_ring *ring, struct mhi_ring_ele mhi_ep_mmio_disable_chdb(mhi_cntrl, ...
1501da7696b23c9a211aca732801156b90d3e4ba
Analyze and fix the following issue in the Linux kernel code: bus: mhi: Update Makefile to used Kconfig flags
Problem Details: Makefile was always suggesting to build subdirectories regardless of Kconfig. Use the Kconfig flags as intended. Signed-off-by: Carl Vanderlip <quic_carlv@quicinc.com> Reviewed-by: Manivannan Sadhasivam <mani@kernel.org> Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com> Link: https://lore.kernel.org/...
```diff diff --git a/drivers/bus/mhi/Makefile b/drivers/bus/mhi/Makefile index 46981331b38f..354204b0ef3a 100644 --- a/drivers/bus/mhi/Makefile +++ b/drivers/bus/mhi/Makefile @@ -1,5 +1,5 @@ # Host MHI stack -obj-y += host/ +obj-$(CONFIG_MHI_BUS) += host/ # Endpoint MHI stack -obj-y += ep/ +obj-$(CONFIG_MHI_BUS_EP)...
ace75e18e736bffda1eaf9fd7eab596ecccb4877
Analyze and fix the following issue in the Linux kernel code: thunderbolt: Handle bandwidth allocation mode enablement notification
Problem Details: When the graphics side enables bandwidth allocation mode the DP IN adapter sends notification to the connection manager about this. Currently the handler misses this and tries to allocate 0 Mb/s that then makes the graphics side to think the request failed. Fix this by properly handling the enablement...
```diff diff --git a/drivers/thunderbolt/tb.c b/drivers/thunderbolt/tb.c index cdd1daaa5da1..bd5d119d7f64 100644 --- a/drivers/thunderbolt/tb.c +++ b/drivers/thunderbolt/tb.c @@ -1746,11 +1746,15 @@ static void tb_handle_dp_bandwidth_request(struct work_struct *work) goto unlock; } - requested_bw = usb4_dp_port_...
a5f3a3f7c17273f825e96d1b3369164a39345a35
Analyze and fix the following issue in the Linux kernel code: selftests/bpf: Properly enable hwtstamp in xdp_hw_metadata
Problem Details: The existing timestamping_enable() is a no-op because it applies to the socket-related path that we are not verifying here anymore. (but still leaving the code around hoping we can have xdp->skb path verified here as well) poll: 1 (0) xsk_ring_cons__peek: 1 0xf64788: rx_desc[0]->addr=10000000000...
```diff diff --git a/tools/testing/selftests/bpf/xdp_hw_metadata.c b/tools/testing/selftests/bpf/xdp_hw_metadata.c index 0008f0f239e8..3823b1c499cc 100644 --- a/tools/testing/selftests/bpf/xdp_hw_metadata.c +++ b/tools/testing/selftests/bpf/xdp_hw_metadata.c @@ -24,6 +24,7 @@ #include <linux/net_tstamp.h> #include <l...
4deef811828e87e26a978d5d6433b261d4713849
Analyze and fix the following issue in the Linux kernel code: drm/mediatek: Drop unbalanced obj unref
Problem Details: In the error path, mtk_drm_gem_object_mmap() is dropping an obj reference that it doesn't own. Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.") Signed-off-by: Rob Clark <robdclark@chromium.org> Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20230119231255....
```diff diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.c b/drivers/gpu/drm/mediatek/mtk_drm_gem.c index 3057790d9264..ec0518aa9315 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_gem.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_gem.c @@ -169,8 +169,6 @@ static int mtk_drm_gem_object_mmap(struct drm_gem_object *obj, re...
15600159bcc6abbeae6b33a849bef90dca28b78f
Analyze and fix the following issue in the Linux kernel code: scsi: Revert "scsi: core: map PQ=1, PDT=other values to SCSI_SCAN_TARGET_PRESENT"
Problem Details: This reverts commit 948e922fc44611ee2de0c89583ca958cb5307d36. Not all targets that return PQ=1 and PDT=0 should be ignored. While the SCSI spec is vague in this department, there appears to be a critical mass of devices which rely on devices being accessible with this combination of reported values. ...
```diff diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index 7a6904a3928e..f9b18fdc7b3c 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -1232,8 +1232,7 @@ static int scsi_probe_and_add_lun(struct scsi_target *starget, * that no LUN is present, so don't add sdev in these case...
2542fc9578d49b3b376231269d4c7c7d4cffd62a
Analyze and fix the following issue in the Linux kernel code: scsi: core: Fix the scsi_device_put() might_sleep annotation
Problem Details: Although most calls of scsi_device_put() happen from non-atomic context, alua_rtpg_queue() calls this function from atomic context if alua_rtpg_queue() itself is called from atomic context. alua_rtpg_queue() is always called from contexts where the caller must hold at least one reference to the scsi de...
```diff diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index 1426b9b03612..9feb0323bc44 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -588,8 +588,6 @@ void scsi_device_put(struct scsi_device *sdev) { struct module *mod = sdev->host->hostt->module; - might_sleep(); - put_device(&sdev->sdev...
f439a959dcfb6b39d6fd4b85ca1110a1d1de1587
Analyze and fix the following issue in the Linux kernel code: amdgpu: fix build on non-DCN platforms.
Problem Details: This fixes the build here locally on my 32-bit arm build. Signed-off-by: Dave Airlie <airlied@redhat.com>
```diff diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index ead47bc62601..af37bc6ed1f5 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -9497,8 +9497,6 @@ static int amdgpu_dm_at...
8911ce66697e04ce7e92753dbf5645f748e27e12
Analyze and fix the following issue in the Linux kernel code: KVM: x86/pmu: Cap kvm_pmu_cap.num_counters_gp at KVM's internal max
Problem Details: Limit kvm_pmu_cap.num_counters_gp during kvm_init_pmu_capability() based on the vendor PMU capabilities so that consuming num_counters_gp naturally does the right thing. This fixes a mostly theoretical bug where KVM could over-report its PMU support in KVM_GET_SUPPORTED_CPUID for leaf 0xA, e.g. if the...
```diff diff --git a/arch/x86/kvm/pmu.h b/arch/x86/kvm/pmu.h index 080a3bbbeda3..79988dafb15b 100644 --- a/arch/x86/kvm/pmu.h +++ b/arch/x86/kvm/pmu.h @@ -36,6 +36,7 @@ struct kvm_pmu_ops { void (*cleanup)(struct kvm_vcpu *vcpu); const u64 EVENTSEL_EVENT; + const int MAX_NR_GP_COUNTERS; }; void kvm_pmu_ops_up...
bab2a5e6fe7fddc00be0356bd538e38161bab085
Analyze and fix the following issue in the Linux kernel code: cxl/test: Simulate event log overflow
Problem Details: Log overflow is marked by a separate trace message. Simulate a log with lots of messages and flag overflow until space is cleared. Reviewed-by: Dan Williams <dan.j.williams@intel.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Ira Weiny <ira.weiny@intel.com> Link: http...
```diff diff --git a/tools/testing/cxl/test/mem.c b/tools/testing/cxl/test/mem.c index 00bf19a68604..9263b04d35f7 100644 --- a/tools/testing/cxl/test/mem.c +++ b/tools/testing/cxl/test/mem.c @@ -78,6 +78,8 @@ struct mock_event_log { u16 clear_idx; u16 cur_idx; u16 nr_events; + u16 nr_overflow; + u16 overflow_rese...
807e2f3f58b174ff3f908c063c0ce13602ab555b
Analyze and fix the following issue in the Linux kernel code: drm/mediatek: Include missing headers
Problem Details: Fix the follow sparse warnings by adding missing headers: drivers/gpu/drm/mediatek/mtk_cec.c:251:24: sparse: warning: symbol 'mtk_cec_driver' was not declared. Should it be static? drivers/gpu/drm/mediatek/mtk_disp_ccorr.c:221:24: sparse: warning: symbol 'mtk_disp_ccorr_driver' was not declared. Shoul...
```diff diff --git a/drivers/gpu/drm/mediatek/mtk_cec.c b/drivers/gpu/drm/mediatek/mtk_cec.c index cdfa648910b2..b640bc0559e7 100644 --- a/drivers/gpu/drm/mediatek/mtk_cec.c +++ b/drivers/gpu/drm/mediatek/mtk_cec.c @@ -12,6 +12,8 @@ #include <linux/platform_device.h> #include "mtk_cec.h" +#include "mtk_hdmi.h" +#in...
4744cde06f57dd6fbaac468663b1fe2f653eaa16
Analyze and fix the following issue in the Linux kernel code: drm/mediatek: Use NULL instead of 0 for NULL pointer
Problem Details: Use NULL for NULL pointer to fix the following sparse warning: drivers/gpu/drm/mediatek/mtk_drm_gem.c:265:27: sparse: warning: Using plain integer as NULL pointer Fixes: 3df64d7b0a4f ("drm/mediatek: Implement gem prime vmap/vunmap function") Signed-off-by: Miles Chen <miles.chen@mediatek.com> Reviewed...
```diff diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.c b/drivers/gpu/drm/mediatek/mtk_drm_gem.c index 47e96b0289f9..06aadd5e7f5b 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_gem.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_gem.c @@ -262,6 +262,6 @@ void mtk_drm_gem_prime_vunmap(struct drm_gem_object *obj, return; ...
4fa180f7fc1921e235f80e4672c80b560b4946c7
Analyze and fix the following issue in the Linux kernel code: dt-bindings: vendor-prefixes: Add prefix for Ufi Space
Problem Details: Add a vendor prefix for Ufi Space (https://www.ufispace.com). Signed-off-by: Jordan Chang <jordan.chang@ufispace.com> Link: https://lore.kernel.org/r/20230119102102.73414-2-jordan.chang@ufispace.com Signed-off-by: Joel Stanley <joel@jms.id.au>
```diff diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml index 70ffb3780621..51be4a8247ff 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.yaml +++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml @@ -1372,6 +1372,8 @@ pat...
91aeaed2c1147e3b1157dc084d23f190856a6c23
Analyze and fix the following issue in the Linux kernel code: drm/mediatek: dsi: Reduce the time of dsi from LP11 to sending cmd
Problem Details: According to Figure 16 Turnaround Procedure on page 36 in [1], you can see the status of LP-00 -> LP10 -> LP11. This state can correspond to the state of DSI from LP00 -> LP11 in mtk_dsi_lane_ready function in mtk_dsi.c. LP-00 -> LP10 -> LP11 takes about 2*TLPX time (refer to [1] page 51 to see that T...
```diff diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c index 3b7d13028fb6..9e1363c9fcdb 100644 --- a/drivers/gpu/drm/mediatek/mtk_dsi.c +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c @@ -721,7 +721,7 @@ static void mtk_dsi_lane_ready(struct mtk_dsi *dsi) mtk_dsi_clk_ulp_mode_leave(dsi...
cbbd05d036e91b9dd976af4382f6c8d91b69b38a
Analyze and fix the following issue in the Linux kernel code: cxl: fix spelling mistakes
Problem Details: Correct spelling mistakes (reported by codespell). Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Alison Schofield <alison.schofield@intel.com> Cc: Vishal Verma <vishal.l.verma@intel.com> Cc: Ira Weiny <ira.weiny@intel.com> Cc: Ben Widawsky <bwidawsk@kernel.org> Cc: Dan Williams <dan.j.willia...
```diff diff --git a/drivers/cxl/Kconfig b/drivers/cxl/Kconfig index 0ac53c422c31..9e709ecba50f 100644 --- a/drivers/cxl/Kconfig +++ b/drivers/cxl/Kconfig @@ -116,7 +116,7 @@ config CXL_REGION_INVALIDATION_TEST depends on CXL_REGION help CXL Region management and security operations potentially invalidate - t...
ee611e5e6616f7981939cc0441a5fb531312c2b6
Analyze and fix the following issue in the Linux kernel code: cxl/mbox: Add debug messages for enabled mailbox commands
Problem Details: Only unsupported mailbox commands are reported in debug messages. A list of enabled commands is useful too. Change debug messages to also report the opcodes of enabled commands. Esp. if card initialization fails there is no way to get this information from userland. On that occasion also add missing t...
```diff diff --git a/drivers/cxl/core/mbox.c b/drivers/cxl/core/mbox.c index b03fba212799..cae43cea00cd 100644 --- a/drivers/cxl/core/mbox.c +++ b/drivers/cxl/core/mbox.c @@ -610,11 +610,12 @@ static void cxl_walk_cel(struct cxl_dev_state *cxlds, size_t size, u8 *cel) if (!cmd) { dev_dbg(cxlds->dev, - "Opco...
851a4a77a9f6441bd73625fe6dbc29c814ae681f
Analyze and fix the following issue in the Linux kernel code: dma-buf: actually set signaling bit for private stub fences
Problem Details: In dma_fence_allocate_private_stub() set the signaling bit of the newly allocated private stub fence rather than the signaling bit of the shared dma_fence_stub. Fixes: c85d00d4fd8b ("dma-buf: set signaling bit for the stub fence") Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: ...
```diff diff --git a/drivers/dma-buf/dma-fence.c b/drivers/dma-buf/dma-fence.c index 406b4e26f538..0de0482cd36e 100644 --- a/drivers/dma-buf/dma-fence.c +++ b/drivers/dma-buf/dma-fence.c @@ -167,7 +167,7 @@ struct dma_fence *dma_fence_allocate_private_stub(void) 0, 0); set_bit(DMA_FENCE_FLAG_ENABLE_SIGNAL...
6ebe28f9ec7228e1a35df6074695ac11d7cdcf68
Analyze and fix the following issue in the Linux kernel code: cxl/mem: Read, trace, and clear events on driver load
Problem Details: CXL devices have multiple event logs which can be queried for CXL event records. Devices are required to support the storage of at least one event record in each event log type. Devices track event log overflow by incrementing a counter and tracking the time of the first and last overflow event seen....
```diff diff --git a/drivers/cxl/core/mbox.c b/drivers/cxl/core/mbox.c index b03fba212799..c329c1e67a2c 100644 --- a/drivers/cxl/core/mbox.c +++ b/drivers/cxl/core/mbox.c @@ -8,6 +8,7 @@ #include <cxl.h> #include "core.h" +#include "trace.h" static bool cxl_raw_allow_all; @@ -717,6 +718,152 @@ out: } EXPORT_...
b904227a4b693fbb9d5eabc9d7100dc01d9eb973
Analyze and fix the following issue in the Linux kernel code: arm64: dts: qcom: sm8350: Hook up DSI1 to MDP
Problem Details: Somehow DSI1 was not hooked up to MDP resulting in it not working. Fix it. Fixes: d4a4410583ed ("arm64: dts: qcom: sm8350: Add display system nodes") Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Bjorn Andersson <ande...
```diff diff --git a/arch/arm64/boot/dts/qcom/sm8350.dtsi b/arch/arm64/boot/dts/qcom/sm8350.dtsi index f3068d545022..0de42a333d32 100644 --- a/arch/arm64/boot/dts/qcom/sm8350.dtsi +++ b/arch/arm64/boot/dts/qcom/sm8350.dtsi @@ -2879,6 +2879,13 @@ remote-endpoint = <&mdss_dsi0_in>; }; }; + + port...
2a07efb8c08619888428cc8fd47643c438111f29
Analyze and fix the following issue in the Linux kernel code: arm64: dts: qcom: sm8350: Add mdss_ prefix to DSIn out labels
Problem Details: Add the mdss_ prefix to DSIn labels, so that the hardware blocks can be organized near each other while retaining the alphabetical order in device DTs when referencing by label. Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-o...
```diff diff --git a/arch/arm64/boot/dts/qcom/sm8350-hdk.dts b/arch/arm64/boot/dts/qcom/sm8350-hdk.dts index 5a4c4ea4d122..df841230d1b7 100644 --- a/arch/arm64/boot/dts/qcom/sm8350-hdk.dts +++ b/arch/arm64/boot/dts/qcom/sm8350-hdk.dts @@ -309,7 +309,7 @@ reg = <0>; lt9611_a: endpoint { - remote-endpoint...
e3e654ced376060d64ede8e2dfde0b1bac0f9086
Analyze and fix the following issue in the Linux kernel code: arm64: dts: qcom: sm8350: Fix DSI PLL size
Problem Details: As downstream indicates, DSI PLL is actually 0x27c and not 0x260- wide. Fix that to reserve the correct registers. Fixes: d4a4410583ed ("arm64: dts: qcom: sm8350: Add display system nodes") Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.o...
```diff diff --git a/arch/arm64/boot/dts/qcom/sm8350.dtsi b/arch/arm64/boot/dts/qcom/sm8350.dtsi index ae5c16cfc0e5..f5a008bb4657 100644 --- a/arch/arm64/boot/dts/qcom/sm8350.dtsi +++ b/arch/arm64/boot/dts/qcom/sm8350.dtsi @@ -2965,7 +2965,7 @@ compatible = "qcom,sm8350-dsi-phy-5nm"; reg = <0 0x0ae94400 0 0x2...
45cd807de14388010a279765486c13f8ac540dfa
Analyze and fix the following issue in the Linux kernel code: arm64: dts: qcom: sm8350: Fix DSI PHY compatibles
Problem Details: The compatibles were wrong, resulting in the driver not probing. Fix that. Fixes: d4a4410583ed ("arm64: dts: qcom: sm8350: Add display system nodes") Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Bjorn Andersson <ande...
```diff diff --git a/arch/arm64/boot/dts/qcom/sm8350.dtsi b/arch/arm64/boot/dts/qcom/sm8350.dtsi index a1962ad5d4f0..ae5c16cfc0e5 100644 --- a/arch/arm64/boot/dts/qcom/sm8350.dtsi +++ b/arch/arm64/boot/dts/qcom/sm8350.dtsi @@ -2962,7 +2962,7 @@ }; mdss_dsi0_phy: phy@ae94400 { - compatible = "qcom,dsi-phy-5...
0af6a4012b3815ebca7b8080a286edc01e4a89e1
Analyze and fix the following issue in the Linux kernel code: arm64: dts: qcom: sm8350: Feed DSI1 PHY clocks to DISPCC
Problem Details: This was omitted but is necessary for DSI1 to function. Fix it. Fixes: d4a4410583ed ("arm64: dts: qcom: sm8350: Add display system nodes") Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Bjorn Andersson <andersson@kerne...
```diff diff --git a/arch/arm64/boot/dts/qcom/sm8350.dtsi b/arch/arm64/boot/dts/qcom/sm8350.dtsi index 145287684afe..a1962ad5d4f0 100644 --- a/arch/arm64/boot/dts/qcom/sm8350.dtsi +++ b/arch/arm64/boot/dts/qcom/sm8350.dtsi @@ -3083,7 +3083,7 @@ reg = <0 0x0af00000 0 0x10000>; clocks = <&rpmhcc RPMH_CXO_CLK>, ...
1eed7995d9da0489e5a46c13bd888ffa987ead98
Analyze and fix the following issue in the Linux kernel code: arm64: dts: qcom: sm8350: Fix DSI1 interrupt
Problem Details: The interrupt was wrong, likely copypasted from DSI0. Fix it. Fixes: d4a4410583ed ("arm64: dts: qcom: sm8350: Add display system nodes") Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Bjorn Andersson <andersson@kernel....
```diff diff --git a/arch/arm64/boot/dts/qcom/sm8350.dtsi b/arch/arm64/boot/dts/qcom/sm8350.dtsi index 53f17d45e789..145287684afe 100644 --- a/arch/arm64/boot/dts/qcom/sm8350.dtsi +++ b/arch/arm64/boot/dts/qcom/sm8350.dtsi @@ -2986,7 +2986,7 @@ reg-names = "dsi_ctrl"; interrupt-parent = <&mdss>; - interr...
0217a40d7ba6e71d7f3422fbe89b436e8ee7ece7
Analyze and fix the following issue in the Linux kernel code: efi: efivars: prevent double registration
Problem Details: Add the missing sanity check to efivars_register() so that it is no longer possible to override an already registered set of efivar ops (without first deregistering them). This can help debug initialisation ordering issues where drivers have so far unknowingly been relying on overriding the generic op...
```diff diff --git a/drivers/firmware/efi/vars.c b/drivers/firmware/efi/vars.c index f34e7741e0c3..bd75b87f5fc1 100644 --- a/drivers/firmware/efi/vars.c +++ b/drivers/firmware/efi/vars.c @@ -62,18 +62,27 @@ EXPORT_SYMBOL_GPL(efivar_is_available); int efivars_register(struct efivars *efivars, const struct efiva...
1d233b1cb149ec78c20fac58331b27bb460f9558
Analyze and fix the following issue in the Linux kernel code: drm/msm/dpu: set pdpu->is_rt_pipe early in dpu_plane_sspp_atomic_update()
Problem Details: The function dpu_plane_sspp_atomic_update() updates pdpu->is_rt_pipe flag, but after the commit 854f6f1c653b ("drm/msm/dpu: update the qos remap only if the client type changes") it sets the flag late, after all the qos functions have updated QoS programming. Move the flag update back to the place wher...
```diff diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c index 86719020afe2..bfd5be89e8b8 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c @@ -1126,7 +1126,7 @@ static void dpu_plane_sspp_atomic_update(struct drm_pla...
e632291a2dbce45a24cddeb5fe28fe71d724ba43
Analyze and fix the following issue in the Linux kernel code: IB/IPoIB: Fix legacy IPoIB due to wrong number of queues
Problem Details: The cited commit creates child PKEY interfaces over netlink will multiple tx and rx queues, but some devices doesn't support more than 1 tx and 1 rx queues. This causes to a crash when traffic is sent over the PKEY interface due to the parent having a single queue but the child having multiple queues. ...
```diff diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index ac25fc80fb33..f10d4bcf87d2 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -2200,6 +2200,14 @@ int ipoib_intf_init(struct ib_device *hca, u32 port, c...
343c700480982214dc4f834f536a49a4098e556a
Analyze and fix the following issue in the Linux kernel code: drm/ssd130x: Init display before the SSD130X_DISPLAY_ON command
Problem Details: Commit 622113b9f11f ("drm/ssd130x: Replace simple display helpers with the atomic helpers") changed the driver to just use the atomic helpers instead of the simple KMS abstraction layer. But the commit also made a subtle change on the display power sequence and initialization order, by moving the ssd1...
```diff diff --git a/drivers/gpu/drm/solomon/ssd130x.c b/drivers/gpu/drm/solomon/ssd130x.c index 53464afc2b9a..91f69e62430b 100644 --- a/drivers/gpu/drm/solomon/ssd130x.c +++ b/drivers/gpu/drm/solomon/ssd130x.c @@ -656,18 +656,8 @@ static const struct drm_crtc_helper_funcs ssd130x_crtc_helper_funcs = { .atomic_check ...
2ec56b232b9775b4814c207ed6da9f065b29711c
Analyze and fix the following issue in the Linux kernel code: drm/msm/dsi: properly handle the case of empty OPP table in dsi_mgr_bridge_mode_valid
Problem Details: It was left unnoticed during the review that even if there is no OPP table in device tree, one will be created by a call to the function devm_pm_opp_set_clkname(). This leads to dsi_mgr_bridge_mode_valid() rejecting all modes if DT contains no OPP table for the DSI host. Rework dsi_mgr_bridge_mode_val...
```diff diff --git a/drivers/gpu/drm/msm/dsi/dsi_manager.c b/drivers/gpu/drm/msm/dsi/dsi_manager.c index b20fddb534a7..1bbac72dad35 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_manager.c +++ b/drivers/gpu/drm/msm/dsi/dsi_manager.c @@ -456,18 +456,19 @@ static enum drm_mode_status dsi_mgr_bridge_mode_valid(struct drm_bridge...
ba82e06cf7f46ac97fe935a6abfe2392ae694ab0
Analyze and fix the following issue in the Linux kernel code: KVM: arm64: timers: Don't BUG() on unhandled timer trap
Problem Details: Although not handling a trap is a pretty bad situation to be in, panicing the kernel isn't useful and provides no valuable information to help debugging the situation. Instead, dump the encoding of the unhandled sysreg, and inject an UNDEF in the guest. At least, this gives a user an opportunity to re...
```diff diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index d5ee52d6bf73..32f4e424b9a5 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -1049,7 +1049,9 @@ static bool access_arch_timer(struct kvm_vcpu *vcpu, treg = TIMER_REG_CVAL; break; default: - BUG(); + print_...
fc6ee952cf0008fb4a60dd8e539d9f17decaabe5
Analyze and fix the following issue in the Linux kernel code: KVM: arm64: Reduce overhead of trapped timer sysreg accesses
Problem Details: Each read/write to a trapped timer system register results in a whole kvm_timer_vcpu_put/load() cycle which affects all of the timers, and a bit more. There is no need for such a thing, and we can limit the impact to the timer being affected, and only this one. This drastically simplifies the emulate...
```diff diff --git a/arch/arm64/kvm/arch_timer.c b/arch/arm64/kvm/arch_timer.c index 587d87aec33f..1a1d7e258aba 100644 --- a/arch/arm64/kvm/arch_timer.c +++ b/arch/arm64/kvm/arch_timer.c @@ -434,6 +434,11 @@ static void timer_emulate(struct arch_timer_context *ctx) soft_timer_start(&ctx->hrtimer, kvm_timer_compute_de...
4d74ecfa6458bf482d93ad9a98c7f0423ff0564b
Analyze and fix the following issue in the Linux kernel code: KVM: arm64: Don't arm a hrtimer for an already pending timer
Problem Details: When fully emulating a timer, we back it with a hrtimer that is armver on vcpu_load(). However, we do this even if the timer is already pending. This causes spurious interrupts to be taken, though the guest doesn't observe them (the interrupt is already pending). Although this is a waste of precious ...
```diff diff --git a/arch/arm64/kvm/arch_timer.c b/arch/arm64/kvm/arch_timer.c index bb24a76b4224..587d87aec33f 100644 --- a/arch/arm64/kvm/arch_timer.c +++ b/arch/arm64/kvm/arch_timer.c @@ -428,10 +428,8 @@ static void timer_emulate(struct arch_timer_context *ctx) * scheduled for the future. If the timer cannot fi...
608348285a5c4aad5bea3709f73cf030b5865562
Analyze and fix the following issue in the Linux kernel code: Documentation: KVM: fix typos in running-nested-guests.rst
Problem Details: change "gues" to "guest" and remove redundant ")". Signed-off-by: Wang Yong <yongw.kernel@gmail.com> Reviewed-by: Kashyap Chamarthy <kchamart@redhat.com> Link: https://lore.kernel.org/r/20230110150046.549755-1-yongw.kernel@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
```diff diff --git a/Documentation/virt/kvm/x86/running-nested-guests.rst b/Documentation/virt/kvm/x86/running-nested-guests.rst index a27e6768d900..71136fe1723b 100644 --- a/Documentation/virt/kvm/x86/running-nested-guests.rst +++ b/Documentation/virt/kvm/x86/running-nested-guests.rst @@ -150,7 +150,7 @@ able to start...
6b219431037bf98c9efd49716aea9b68440477a3
Analyze and fix the following issue in the Linux kernel code: docs/scripts/gdb: add necessary make scripts_gdb step
Problem Details: In order to debug the kernel successfully with gdb you need to run 'make scripts_gdb' nowadays. This was changed with the following commit: Commit 67274c083438340ad16c ("scripts/gdb: delay generation of gdb constants.py") In order to have a complete guide for beginners this remark should be added to...
```diff diff --git a/Documentation/dev-tools/gdb-kernel-debugging.rst b/Documentation/dev-tools/gdb-kernel-debugging.rst index 8e0f1fe8d17a..895285c037c7 100644 --- a/Documentation/dev-tools/gdb-kernel-debugging.rst +++ b/Documentation/dev-tools/gdb-kernel-debugging.rst @@ -39,6 +39,10 @@ Setup this mode. In this ca...
835205f61f84b61de4e475f09802ad1cc0f87d49
Analyze and fix the following issue in the Linux kernel code: docs: leds: fix the following docu build warning
Problem Details: Add leds-qcom-lpg to Documentation/leds/index.rst to fix the following doc build warning. Documentation/leds/leds-qcom-lpg.rst: WARNING: document isn't included in any toctree Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> Link: https://lore.kernel.org/r/20230125154426.12464-1-skhan@linuxfound...
```diff diff --git a/Documentation/leds/index.rst b/Documentation/leds/index.rst index e5d63b940045..b9ca081fac71 100644 --- a/Documentation/leds/index.rst +++ b/Documentation/leds/index.rst @@ -26,3 +26,4 @@ LEDs leds-lp55xx leds-mlxcpld leds-sc27xx + leds-qcom-lpg ```
0c1ccc158bbc4d14fe1a52e99f3933f34f309dac
Analyze and fix the following issue in the Linux kernel code: Coresight: tpda/tpdm: remove incorrect __exit annotation
Problem Details: 'remove' callbacks get called whenever a device is unbound from the driver, which can get triggered from user space. Putting it into the __exit section means that the function gets dropped in for built-in drivers, as pointed out by this build warning: `tpda_remove' referenced in section `.data' of dr...
```diff diff --git a/drivers/hwtracing/coresight/coresight-tpda.c b/drivers/hwtracing/coresight/coresight-tpda.c index 19c25c9f6157..382d648529e7 100644 --- a/drivers/hwtracing/coresight/coresight-tpda.c +++ b/drivers/hwtracing/coresight/coresight-tpda.c @@ -174,7 +174,7 @@ static int tpda_probe(struct amba_device *ade...
77a0812c962baec49c9928342f9020f05fbb5db1
Analyze and fix the following issue in the Linux kernel code: Documentation/mm: Fix typo emluation -> emulation
Problem Details: Fix typo emluation -> emulation Signed-off-by: Jules Maselbas <jmaselbas@kalray.eu> Link: https://lore.kernel.org/r/20230126173217.12912-1-jmaselbas@kalray.eu Signed-off-by: Jonathan Corbet <corbet@lwn.net>
```diff diff --git a/Documentation/mm/numa.rst b/Documentation/mm/numa.rst index 99fdeca917ca..e1410974c941 100644 --- a/Documentation/mm/numa.rst +++ b/Documentation/mm/numa.rst @@ -64,7 +64,7 @@ In addition, for some architectures, again x86 is an example, Linux supports the emulation of additional nodes. For NUMA ...
262b42e02d1e0b5ad1b33e9b9842e178c16231de
Analyze and fix the following issue in the Linux kernel code: treewide: fix up files incorrectly marked executable
Problem Details: I'm not exactly clear on what strange workflow causes people to do it, but clearly occasionally some files end up being committed as executable even though they clearly aren't. This is a reprise of commit 90fda63fa115 ("treewide: fix up files incorrectly marked executable"), just with a different set ...
```diff diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_msg_arm64.h b/drivers/gpu/drm/vmwgfx/vmwgfx_msg_arm64.h old mode 100755 new mode 100644 diff --git a/sound/soc/codecs/es8326.c b/sound/soc/codecs/es8326.c old mode 100755 new mode 100644 diff --git a/sound/soc/codecs/es8326.h b/sound/soc/codecs/es8326.h old mode 100755...
bb457bddee41077768759f6706fa641227877fa0
Analyze and fix the following issue in the Linux kernel code: arm64: el2_setup.h: fix spelling typo in comments
Problem Details: - "evailable" -> "available" Signed-off-by: Prathu Baronia <prathubaronia2011@gmail.com> Reviewed-by: Mukesh Ojha <quic_mojha@quicinc.com> Link: https://lore.kernel.org/r/20230123110639.10473-1-prathubaronia2011@gmail.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
```diff diff --git a/arch/arm64/include/asm/el2_setup.h b/arch/arm64/include/asm/el2_setup.h index 668569adf4d3..40567b9bb019 100644 --- a/arch/arm64/include/asm/el2_setup.h +++ b/arch/arm64/include/asm/el2_setup.h @@ -177,7 +177,7 @@ /** * Initialize EL2 registers to sane values. This should be called early on all ...
11fc944f7e14a67a2fbf578da5d7244525cf9571
Analyze and fix the following issue in the Linux kernel code: arm64: Kconfig: fix spelling
Problem Details: Fix spelling typos in arm64: (reported by codespell) s/upto/up to/ s/familly/family/ Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Will Deacon <will@kernel.org> Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20230124181605.14144-1-rdunlap@infradead.org Signed-off-by...
```diff diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 8cfd8dcf7e75..035d307c7abb 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -1485,7 +1485,7 @@ config ARCH_FORCE_MAX_ORDER This config option is actually maximum order plus one. For example, a value of 11 means that the largest free m...
2ced0f30a426c7301350681f838344d5aea711e3
Analyze and fix the following issue in the Linux kernel code: arm64: head: Switch endianness before populating the ID map
Problem Details: Ensure that the endianness used for populating the ID map matches the endianness that the running kernel will be using, as this is no longer guaranteed now that create_idmap() is invoked before init_kernel_el(). Note that doing so is only safe if the MMU is off, as switching the endianness with the MM...
```diff diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h index 1312fb48f18b..2facd7933948 100644 --- a/arch/arm64/include/asm/sysreg.h +++ b/arch/arm64/include/asm/sysreg.h @@ -575,6 +575,7 @@ #define SCTLR_ELx_DSSBS (BIT(44)) #define SCTLR_ELx_ATA (BIT(43)) +#define SCTLR_ELx_EE_SHIFT...
e18c6da62edc780e4f4f3c9ce07bdacd69505182
Analyze and fix the following issue in the Linux kernel code: ASoC: cs42l56: fix DT probe
Problem Details: While looking through legacy platform data users, I noticed that the DT probing never uses data from the DT properties, as the platform_data structure gets overwritten directly after it is initialized. There have never been any boards defining the platform_data in the mainline kernel either, so this d...
```diff diff --git a/sound/soc/codecs/cs42l56.c b/sound/soc/codecs/cs42l56.c index 26066682c983..3b0e715549c9 100644 --- a/sound/soc/codecs/cs42l56.c +++ b/sound/soc/codecs/cs42l56.c @@ -1191,18 +1191,12 @@ static int cs42l56_i2c_probe(struct i2c_client *i2c_client) if (pdata) { cs42l56->pdata = *pdata; } else {...
3f592a869f87723314f0cb1ac232bd3bf8245be8
Analyze and fix the following issue in the Linux kernel code: mtd: spi-nor: spansion: Consider reserved bits in CFR5 register
Problem Details: CFR5[6] is reserved bit and must be always 1. Set it to comply with flash requirements. While fixing SPINOR_REG_CYPRESS_CFR5V_OCT_DTR_{EN, DS} definition, stop using magic numbers and describe the missing bit fields in CFR5 register. This is useful for both readability and future possible addition of O...
```diff diff --git a/drivers/mtd/spi-nor/spansion.c b/drivers/mtd/spi-nor/spansion.c index b621cdfd506f..07fe0f6fdfe3 100644 --- a/drivers/mtd/spi-nor/spansion.c +++ b/drivers/mtd/spi-nor/spansion.c @@ -21,8 +21,13 @@ #define SPINOR_REG_CYPRESS_CFR3V 0x00800004 #define SPINOR_REG_CYPRESS_CFR3V_PGSZ BIT(4) /* Page s...
25e3f30601a368642678744fc8a9b1dce183c7bc
Analyze and fix the following issue in the Linux kernel code: mtd: spi-nor: core: fix implicit declaration warning
Problem Details: spi-nor/core.c needs to include linux/delay.h, or it would raise below compile warning: drivers/mtd/spi-nor/core.c: In function ‘spi_nor_soft_reset’: drivers/mtd/spi-nor/core.c:2779:2: error: implicit declaration of function ‘usleep_range’ [-Werror=implicit-function-declaration] 2779 | usleep_range(...
```diff diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c index d8703d7dfd0a..b500655f7937 100644 --- a/drivers/mtd/spi-nor/core.c +++ b/drivers/mtd/spi-nor/core.c @@ -15,6 +15,7 @@ #include <linux/math64.h> #include <linux/sizes.h> #include <linux/slab.h> +#include <linux/delay.h> #include <li...
1cc4606d19e3710bfab3f6704b87ff9580493c69
Analyze and fix the following issue in the Linux kernel code: fuse: add inode/permission checks to fileattr_get/fileattr_set
Problem Details: It looks like these checks were accidentally lost during the conversion to fileattr API. Fixes: 72227eac177d ("fuse: convert to fileattr") Cc: <stable@vger.kernel.org> # v5.13 Signed-off-by: Alexander Mikhalitsyn <aleksandr.mikhalitsyn@canonical.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
```diff diff --git a/fs/fuse/ioctl.c b/fs/fuse/ioctl.c index fcce94ace2c2..8ba1545e01f9 100644 --- a/fs/fuse/ioctl.c +++ b/fs/fuse/ioctl.c @@ -419,6 +419,12 @@ static struct fuse_file *fuse_priv_ioctl_prepare(struct inode *inode) struct fuse_mount *fm = get_fuse_mount(inode); bool isdir = S_ISDIR(inode->i_mode); ...
06bbb761c12dd147e4499f4d7a187699c5a0391f
Analyze and fix the following issue in the Linux kernel code: fuse: fix all W=1 kernel-doc warnings
Problem Details: Use correct function name in kernel-doc notation. (1) Don't use "/**" to begin non-kernel-doc comments. (3) Fixes these warnings: fs/fuse/cuse.c:272: warning: expecting prototype for cuse_parse_dev_info(). Prototype was for cuse_parse_devinfo() instead fs/fuse/dev.c:212: warning: expecting prototype ...
```diff diff --git a/fs/fuse/cuse.c b/fs/fuse/cuse.c index a06fbb1a8a5b..179a5c5e28fd 100644 --- a/fs/fuse/cuse.c +++ b/fs/fuse/cuse.c @@ -256,7 +256,7 @@ static int cuse_parse_one(char **pp, char *end, char **keyp, char **valp) } /** - * cuse_parse_dev_info - parse device info + * cuse_parse_devinfo - parse device...
5a8bee63b10f6f2f52f6d22e109a4a147409842a
Analyze and fix the following issue in the Linux kernel code: fuse: in fuse_flush only wait if someone wants the return code
Problem Details: If a fuse filesystem is mounted inside a container, there is a problem during pid namespace destruction. The scenario is: 1. task (a thread in the fuse server, with a fuse file open) starts exiting, does exit_signals(), goes into fuse_flush() -> wait 2. fuse daemon gets killed, tries to wake everyo...
```diff diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 875314ee6f59..ad5dc8f9acdf 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -18,6 +18,7 @@ #include <linux/falloc.h> #include <linux/uio.h> #include <linux/fs.h> +#include <linux/file.h> static int fuse_send_open(struct fuse_mount *fm, u64 nodeid, ...
e566507bf2f460967f53030ef84b67ef26dcaf8e
Analyze and fix the following issue in the Linux kernel code: drm/simpledrm: Fix an NULL vs IS_ERR() bug
Problem Details: The devm_memremap() function doesn't return NULL, it returns error pointers. Fixes: 9a10c7e6519b ("drm/simpledrm: Add support for system memory framebuffers") Signed-off-by: Dan Carpenter <error27@gmail.com> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Thierry Reding <treding@nv...
```diff diff --git a/drivers/gpu/drm/tiny/simpledrm.c b/drivers/gpu/drm/tiny/simpledrm.c index 2acc0eb32489..63881a3754f8 100644 --- a/drivers/gpu/drm/tiny/simpledrm.c +++ b/drivers/gpu/drm/tiny/simpledrm.c @@ -719,8 +719,8 @@ static struct simpledrm_device *simpledrm_device_create(struct drm_driver *drv, drm_dbg(de...
085cf7b7e2ef7bdd88c8f2f56a17d756bd18f1a4
Analyze and fix the following issue in the Linux kernel code: udf: Fix file counting in LVID
Problem Details: numFiles entry in LVID should actually contain number for non-dir file entries, not the number of non-dir inodes. Move the counting from inode allocation / deallocation into directory entry handling functions. Signed-off-by: Jan Kara <jack@suse.cz>
```diff diff --git a/fs/udf/ialloc.c b/fs/udf/ialloc.c index b5d611cee749..ffd9ccbce0d0 100644 --- a/fs/udf/ialloc.c +++ b/fs/udf/ialloc.c @@ -28,21 +28,7 @@ void udf_free_inode(struct inode *inode) { - struct super_block *sb = inode->i_sb; - struct udf_sb_info *sbi = UDF_SB(sb); - struct logicalVolIntegrityDescImp...
79d3c6dbada4a20193467f72c531ab99c173bf4f
Analyze and fix the following issue in the Linux kernel code: udf: Convert in-ICB files to use udf_writepages()
Problem Details: Switching address_space_operations while a file is used is difficult to do in a race-free way. To be able to use single address_space_operations in UDF, make in-ICB files use udf_writepages(). Reported-by: syzbot+c27475eb921c46bbdc62@syzkaller.appspotmail.com Reported-by: Christoph Hellwig <hch@lst.de...
```diff diff --git a/fs/udf/file.c b/fs/udf/file.c index 2666234a5204..7a8dbad86e41 100644 --- a/fs/udf/file.c +++ b/fs/udf/file.c @@ -57,25 +57,6 @@ void udf_adinicb_readpage(struct page *page) kunmap_atomic(kaddr); } -static int udf_adinicb_writepage(struct page *page, - struct writeback_control *wbc) -{ - s...
f54aa97fb7e5329a373f9df4e5e213ced4fc8759
Analyze and fix the following issue in the Linux kernel code: udf: Fix off-by-one error when discarding preallocation
Problem Details: The condition determining whether the preallocation can be used had an off-by-one error so we didn't discard preallocation when new allocation was just following it. This can then confuse code in inode_getblk(). CC: stable@vger.kernel.org Fixes: 16d055656814 ("udf: Discard preallocation before extendi...
```diff diff --git a/fs/udf/inode.c b/fs/udf/inode.c index 51deada8b928..ee440d16411e 100644 --- a/fs/udf/inode.c +++ b/fs/udf/inode.c @@ -361,7 +361,7 @@ static int udf_map_block(struct inode *inode, struct udf_map_rq *map) * Block beyond EOF and prealloc extents? Just discard preallocation * as it is not useful...
36ec52ea038b18a53e198116ef7d7e70c87db046
Analyze and fix the following issue in the Linux kernel code: udf: Fix file corruption when appending just after end of preallocated extent
Problem Details: When we append new block just after the end of preallocated extent, the code in inode_getblk() wrongly determined we're going to use the preallocated extent which resulted in adding block into a wrong logical offset in the file. Sequence like this manifests it: xfs_io -f -c "pwrite 0x2cacf 0xd122" -c ...
```diff diff --git a/fs/udf/inode.c b/fs/udf/inode.c index 356e15daef18..51deada8b928 100644 --- a/fs/udf/inode.c +++ b/fs/udf/inode.c @@ -742,19 +742,17 @@ static int inode_getblk(struct inode *inode, struct udf_map_rq *map) c = 0; offset = 0; count += ret; - /* We are not covered by a preallocated extent? *...
f950fd0529130a617b3da526da9fb6a896ce87c2
Analyze and fix the following issue in the Linux kernel code: udf: Protect rename against modification of moved directory
Problem Details: When we are renaming a directory to a different directory, we need to update '..' entry in the moved directory. However nothing prevents moved directory from being modified and even converted from the in-ICB format to the normal format which results in a crash. Fix the problem by locking the moved dire...
```diff diff --git a/fs/udf/namei.c b/fs/udf/namei.c index 87257f49b5da..663b66014c98 100644 --- a/fs/udf/namei.c +++ b/fs/udf/namei.c @@ -786,6 +786,11 @@ static int udf_rename(struct user_namespace *mnt_userns, struct inode *old_dir, if (!empty_dir(new_inode)) goto out_oiter; } + /* + * We need to prot...
101ee137d32adc5b53f5c2a61fbda8f70f994845
Analyze and fix the following issue in the Linux kernel code: udf: Drop VARCONV support
Problem Details: UDF was supporting a strange mode where the media was containing 7 blocks of unknown data for every 32 blocks of the filesystem. I have yet to see the media that would need such conversion (maybe it comes from packet writing times) and the conversions have been inconsistent in the code. In particular a...
```diff diff --git a/fs/udf/balloc.c b/fs/udf/balloc.c index 8e597db4d971..cdf90928b7f2 100644 --- a/fs/udf/balloc.c +++ b/fs/udf/balloc.c @@ -42,7 +42,7 @@ static int read_block_bitmap(struct super_block *sb, loc.logicalBlockNum = bitmap->s_extPosition; loc.partitionReferenceNum = UDF_SB(sb)->s_partition; - bh =...
1ea1cd11c72d1405a6b98440a9d5ea82dfa07166
Analyze and fix the following issue in the Linux kernel code: udf: Fix directory iteration for longer tail extents
Problem Details: When directory's last extent has more that one block and its length is not multiple of a block side, the code wrongly decided to move to the next extent instead of processing the last partial block. This led to directory corruption. Fix the rounding issue. Signed-off-by: Jan Kara <jack@suse.cz>
```diff diff --git a/fs/udf/directory.c b/fs/udf/directory.c index b1424e2aa868..31f1bf8ab848 100644 --- a/fs/udf/directory.c +++ b/fs/udf/directory.c @@ -170,7 +170,7 @@ static struct buffer_head *udf_fiiter_bread_blk(struct udf_fileident_iter *iter) static int udf_fiiter_advance_blk(struct udf_fileident_iter *iter) ...
ee454ad2fce7baa272fc0a69f93d47013ea06b07
Analyze and fix the following issue in the Linux kernel code: udf: Propagate errors from udf_advance_blk()
Problem Details: When we spot directory corruption when trying to load next directory extent, we didn't propagate the error up properly, leading to possibly indefinite looping on corrupted directories. Fix the problem by propagating the error properly. Signed-off-by: Jan Kara <jack@suse.cz>
```diff diff --git a/fs/udf/directory.c b/fs/udf/directory.c index e8cf13214c8c..b1424e2aa868 100644 --- a/fs/udf/directory.c +++ b/fs/udf/directory.c @@ -217,7 +217,9 @@ static int udf_fiiter_load_bhs(struct udf_fileident_iter *iter) /* Need to fetch next block to get name? */ if (off + udf_dir_entry_len(fi) > blk...
3bea4ae1c97bab48bef4b1694915b43a5543c9c7
Analyze and fix the following issue in the Linux kernel code: udf: Zero udf name padding
Problem Details: Padding of name in the directory entry needs to be zeroed out. Fix it. Signed-off-by: Jan Kara <jack@suse.cz>
```diff diff --git a/fs/udf/directory.c b/fs/udf/directory.c index 18a1514871fe..e8cf13214c8c 100644 --- a/fs/udf/directory.c +++ b/fs/udf/directory.c @@ -367,6 +367,8 @@ static void udf_copy_fi_to_bufs(char *buf1, int len1, char *buf2, int len2, int fioff = off; int crcoff = off + sizeof(struct tag); unsigned in...
7649a5d1f263b8cc5c2827ef0443ead9bee9ae0e
Analyze and fix the following issue in the Linux kernel code: drm/i915/xehp: Annotate a couple more workaround registers as MCR
Problem Details: GAMSTLB_CTRL and GAMCNTRL_CTRL became multicast/replicated registers on Xe_HP. They should be defined accordingly and use MCR-aware operations. These registers have only been used for some dg2/xehpsdv workarounds, so this fix is mostly just for consistency/future-proofing; even lacking the MCR annota...
```diff diff --git a/drivers/gpu/drm/i915/gt/intel_gt_regs.h b/drivers/gpu/drm/i915/gt/intel_gt_regs.h index 310bdde049ab..7fa18a3b3957 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_regs.h +++ b/drivers/gpu/drm/i915/gt/intel_gt_regs.h @@ -1107,12 +1107,12 @@ #define XELPMP_VEBX_MOD_CTRL _MMIO(0xcf38) #define FORC...
2d4a628cade2fe9cf7aa5629cffe768afe0e7ae1
Analyze and fix the following issue in the Linux kernel code: pinctrl: renesas: rzg2l: Add BUILD_BUG_ON() checks
Problem Details: Add BUILD_BUG_ON() checks to avoid overflows for GPIO configs for each supported SoC. While at it, for readability set n_port_pins based on the GPIO pin configs and not on GPIO names for r9a07g044_data as done for r9a07g043_data. Suggested-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-b...
```diff diff --git a/drivers/pinctrl/renesas/pinctrl-rzg2l.c b/drivers/pinctrl/renesas/pinctrl-rzg2l.c index 6f762097557a..04b31f0c6b34 100644 --- a/drivers/pinctrl/renesas/pinctrl-rzg2l.c +++ b/drivers/pinctrl/renesas/pinctrl-rzg2l.c @@ -1468,6 +1468,12 @@ static int rzg2l_pinctrl_probe(struct platform_device *pdev) ...
00dfe29887761405ccd23cc0aa07cb86623bb2b7
Analyze and fix the following issue in the Linux kernel code: pinctrl: renesas: rzg2l: Fix configuring the GPIO pins as interrupts
Problem Details: On the RZ/G2UL SoC we have less number of pins compared to RZ/G2L and also the pin configs are completely different. This patch makes sure we use the appropriate pin configs for each SoC (which is passed as part of the OF data) while configuring the GPIO pin as interrupts instead of using rzg2l_gpio_co...
```diff diff --git a/drivers/pinctrl/renesas/pinctrl-rzg2l.c b/drivers/pinctrl/renesas/pinctrl-rzg2l.c index 5aa3836dbc22..6f762097557a 100644 --- a/drivers/pinctrl/renesas/pinctrl-rzg2l.c +++ b/drivers/pinctrl/renesas/pinctrl-rzg2l.c @@ -130,6 +130,7 @@ struct rzg2l_dedicated_configs { struct rzg2l_pinctrl_data { c...
eda94a6e6a4f2d3d1574ff4f2bd4b9f844504f71
Analyze and fix the following issue in the Linux kernel code: drm/i915/mtl: Correct implementation of Wa_18018781329
Problem Details: Workaround Wa_18018781329 has applied to several recent Xe_HP-based platforms. However there are some extra gotchas to implementing this properly for MTL that we need to take into account: * Due to the separation of media and render/compute into separate GTs, this workaround needs to be implement...
```diff diff --git a/drivers/gpu/drm/i915/gt/intel_gt_regs.h b/drivers/gpu/drm/i915/gt/intel_gt_regs.h index 2727645864db..310bdde049ab 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_regs.h +++ b/drivers/gpu/drm/i915/gt/intel_gt_regs.h @@ -1100,8 +1100,11 @@ #define XEHP_MERT_MOD_CTRL MCR_REG(0xcf28) #define RENDER_...
34cf9a859f14dab836eaf984bc9a778afb409b6f
Analyze and fix the following issue in the Linux kernel code: pinctrl: renesas: r8a779g0: Fix alignment in GPSR[678]_* macros
Problem Details: The alignment of the second column in the definitions of the GPSR[678]_* macros does not match the alignment used in other definitions. Fix this to improve uniformity. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/9424a0e7f6d66a94d333df9fdc5cdf3b7defb8f5.1...
```diff diff --git a/drivers/pinctrl/renesas/pfc-r8a779g0.c b/drivers/pinctrl/renesas/pfc-r8a779g0.c index 5dd1c2c7708a..bf7fcce2d9c6 100644 --- a/drivers/pinctrl/renesas/pfc-r8a779g0.c +++ b/drivers/pinctrl/renesas/pfc-r8a779g0.c @@ -206,66 +206,66 @@ #define GPSR5_0 FM(AVB2_AVTP_PPS) /* GPSR 6 */ -#define GPSR6_...
49cbda6386efc5f023f396dca087aaba5d4f885e
Analyze and fix the following issue in the Linux kernel code: drm/i915/xehp: GAM registers don't need to be re-applied on engine resets
Problem Details: Register reset characteristics (i.e., whether the register maintains or loses its value on engine reset) is an important factor that determines which wa_list we want to add workarounds to. We recently found out that the bspec documentation for the Xe_HP's "GAM" registers in the 0xC800 - 0xCFFF range w...
```diff diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c index 4efc1a532982..9db60078460a 100644 --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c @@ -1559,6 +1559,13 @@ xehpsdv_gt_workarounds_init(struct intel_gt *g...
584f13e75356936736930c501bce2db3616fb70e
Analyze and fix the following issue in the Linux kernel code: drm/tegra: Remove redundant null checks before kfree
Problem Details: Fix the following coccicheck warning: ./drivers/gpu/drm/tegra/submit.c:689:2-7: WARNING: NULL check before some freeing functions is not needed. Signed-off-by: Yushan Zhou <katrinzhou@tencent.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
```diff diff --git a/drivers/gpu/drm/tegra/submit.c b/drivers/gpu/drm/tegra/submit.c index f4688fcafe93..d775225bed12 100644 --- a/drivers/gpu/drm/tegra/submit.c +++ b/drivers/gpu/drm/tegra/submit.c @@ -680,8 +680,7 @@ free_job_data: kfree(job_data->used_mappings); } - if (job_data) - kfree(job_data); + kfree(j...
1b5c09de25e8c08655c270a70e5e74e93b6bad1f
Analyze and fix the following issue in the Linux kernel code: drm/tegra: firewall: Check for is_addr_reg existence in IMM check
Problem Details: In the IMM opcode check, don't call is_addr_reg if it's not set. Fixes: 8cc95f3fd35e ("drm/tegra: Add job firewall") Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
```diff diff --git a/drivers/gpu/drm/tegra/firewall.c b/drivers/gpu/drm/tegra/firewall.c index 1824d2db0e2c..d53f890fa689 100644 --- a/drivers/gpu/drm/tegra/firewall.c +++ b/drivers/gpu/drm/tegra/firewall.c @@ -97,6 +97,9 @@ static int fw_check_regs_imm(struct tegra_drm_firewall *fw, u32 offset) { bool is_addr; + ...
eb258cc1fd458e584082be987dbc6ec42668c05e
Analyze and fix the following issue in the Linux kernel code: gpu: host1x: Don't skip assigning syncpoints to channels
Problem Details: The code to write the syncpoint channel assignment register incorrectly skips the write if hypervisor registers are not available. The register, however, is within the guest aperture so remove the check and assign syncpoints properly even on virtualized systems. Fixes: c3f52220f276 ("gpu: host1x: Ena...
```diff diff --git a/drivers/gpu/host1x/hw/syncpt_hw.c b/drivers/gpu/host1x/hw/syncpt_hw.c index dd39d67ccec3..8cf35b2eff3d 100644 --- a/drivers/gpu/host1x/hw/syncpt_hw.c +++ b/drivers/gpu/host1x/hw/syncpt_hw.c @@ -106,9 +106,6 @@ static void syncpt_assign_to_channel(struct host1x_syncpt *sp, #if HOST1X_HW >= 6 stru...
79aad29c7d2d2cd64790115d3a6ebac28c00a8ec
Analyze and fix the following issue in the Linux kernel code: gpu: host1x: Fix mask for syncpoint increment register
Problem Details: On Tegra186+, the syncpoint ID has 10 bits of space. To allow using more than 256 syncpoints, fix the mask. Fixes: 9abdd497cd0a ("gpu: host1x: Tegra234 device data and headers") Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
```diff diff --git a/drivers/gpu/host1x/hw/hw_host1x06_uclass.h b/drivers/gpu/host1x/hw/hw_host1x06_uclass.h index 5f831438d19b..50c32de452fb 100644 --- a/drivers/gpu/host1x/hw/hw_host1x06_uclass.h +++ b/drivers/gpu/host1x/hw/hw_host1x06_uclass.h @@ -53,7 +53,7 @@ static inline u32 host1x_uclass_incr_syncpt_cond_f(u32 ...
8e4ff684762b6503db45e8906e258faee080c336
Analyze and fix the following issue in the Linux kernel code: block: ublk: move ublk_chr_class destroying after devices are removed
Problem Details: The 'ublk_chr_class' is needed when deleting ublk char devices in ublk_exit(), so move it after devices(idle) are removed. Fixes the following warning reported by Harris, James R: [ 859.178950] sysfs group 'power' not found for kobject 'ublkc0' [ 859.178962] WARNING: CPU: 3 PID: 1109 at fs/sysfs/gr...
```diff diff --git a/drivers/block/ublk_drv.c b/drivers/block/ublk_drv.c index 17b677b5d3b2..e54693204630 100644 --- a/drivers/block/ublk_drv.c +++ b/drivers/block/ublk_drv.c @@ -2092,13 +2092,12 @@ static void __exit ublk_exit(void) struct ublk_device *ub; int id; - class_destroy(ublk_chr_class); - - misc_deregi...
361238cdc52523fd7b1f3aa447c0579f42448b00
Analyze and fix the following issue in the Linux kernel code: arm64: tegra: Mark host1x as dma-coherent on Tegra194/234
Problem Details: Ensure appropriate configuration is done to make the host1x device and context devices DMA coherent by adding the dma-coherent flag. Fixes: b35f5b53a87b ("arm64: tegra: Add context isolation domains on Tegra234") Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <tre...
```diff diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi index 6365130a84cf..de98068e22b4 100644 --- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi @@ -1923,6 +1923,7 @@ interconnects = <&mc TEGRA194_MEMORY_CLIENT_HOST1XDMAR ...
9179f5fe41733ff56f7dfcb83c0c1456f6d2e4ae
Analyze and fix the following issue in the Linux kernel code: net: ethtool: provide shims for stats aggregation helpers when CONFIG_ETHTOOL_NETLINK=n
Problem Details: ethtool_aggregate_*_stats() are implemented in net/ethtool/stats.c, a file which is compiled out when CONFIG_ETHTOOL_NETLINK=n. In order to avoid adding Kbuild dependencies from drivers (which call these helpers) on CONFIG_ETHTOOL_NETLINK, let's add some shim definitions which simply make the helpers d...
```diff diff --git a/drivers/net/ethernet/mscc/ocelot_stats.c b/drivers/net/ethernet/mscc/ocelot_stats.c index f660eef4a287..bdb893476832 100644 --- a/drivers/net/ethernet/mscc/ocelot_stats.c +++ b/drivers/net/ethernet/mscc/ocelot_stats.c @@ -4,6 +4,7 @@ * Copyright (c) 2017 Microsemi Corporation * Copyright 2022 N...
a428eb4b99ab80454f06ad256b25e930fe8a4954
Analyze and fix the following issue in the Linux kernel code: Partially revert "perf/arm-cmn: Optimise DTC counter accesses"
Problem Details: It turns out the optimisation implemented by commit 4f2c3872dde5 is totally broken, since all the places that consume hw->dtcs_used for events other than cycle count are still not expecting it to be sparsely populated, and fail to read all the relevant DTC counters correctly if so. If implemented corr...
```diff diff --git a/drivers/perf/arm-cmn.c b/drivers/perf/arm-cmn.c index b80a9b74662b..1deb61b22bc7 100644 --- a/drivers/perf/arm-cmn.c +++ b/drivers/perf/arm-cmn.c @@ -1576,7 +1576,6 @@ static int arm_cmn_event_init(struct perf_event *event) hw->dn++; continue; } - hw->dtcs_used |= arm_cmn_node_to_xp(cmn...