October 2025 - Linux-stable-mirror

FAILED: patch "[PATCH] mfd: intel_soc_pmic_chtdc_ti: Set use_single_read" failed to apply to 5.10-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.10-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y git checkout FETCH_HEAD git cherry-pick -x 64e0d839c589f4f2ecd2e3e5bdb5cee6ba6bade9 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025101315-glue-daylight-739b@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 64e0d839c589f4f2ecd2e3e5bdb5cee6ba6bade9 Mon Sep 17 00:00:00 2001 From: Hans de Goede <hansg(a)kernel.org> Date: Mon, 4 Aug 2025 15:32:40 +0200 Subject: [PATCH] mfd: intel_soc_pmic_chtdc_ti: Set use_single_read regmap_config flag Testing has shown that reading multiple registers at once (for 10-bit ADC values) does not work. Set the use_single_read regmap_config flag to make regmap split these for us. This should fix temperature opregion accesses done by drivers/acpi/pmic/intel_pmic_chtdc_ti.c and is also necessary for the upcoming drivers for the ADC and battery MFD cells. Fixes: 6bac0606fdba ("mfd: Add support for Cherry Trail Dollar Cove TI PMIC") Cc: stable(a)vger.kernel.org Reviewed-by: Andy Shevchenko <andy(a)kernel.org> Signed-off-by: Hans de Goede <hansg(a)kernel.org> Link: https://lore.kernel.org/r/20250804133240.312383-1-hansg@kernel.org Signed-off-by: Lee Jones <lee(a)kernel.org> diff --git a/drivers/mfd/intel_soc_pmic_chtdc_ti.c b/drivers/mfd/intel_soc_pmic_chtdc_ti.c index 4c1a68c9f575..6daf33e07ea0 100644 --- a/drivers/mfd/intel_soc_pmic_chtdc_ti.c +++ b/drivers/mfd/intel_soc_pmic_chtdc_ti.c @@ -82,6 +82,8 @@ static const struct regmap_config chtdc_ti_regmap_config = { .reg_bits = 8, .val_bits = 8, .max_register = 0xff, + /* The hardware does not support reading multiple registers at once */ + .use_single_read = true, }; static const struct regmap_irq chtdc_ti_irqs[] = {

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FAILED: patch "[PATCH] mfd: intel_soc_pmic_chtdc_ti: Set use_single_read" failed to apply to 5.15-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y git checkout FETCH_HEAD git cherry-pick -x 64e0d839c589f4f2ecd2e3e5bdb5cee6ba6bade9 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025101308-pedometer-broadness-3e95@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 64e0d839c589f4f2ecd2e3e5bdb5cee6ba6bade9 Mon Sep 17 00:00:00 2001 From: Hans de Goede <hansg(a)kernel.org> Date: Mon, 4 Aug 2025 15:32:40 +0200 Subject: [PATCH] mfd: intel_soc_pmic_chtdc_ti: Set use_single_read regmap_config flag Testing has shown that reading multiple registers at once (for 10-bit ADC values) does not work. Set the use_single_read regmap_config flag to make regmap split these for us. This should fix temperature opregion accesses done by drivers/acpi/pmic/intel_pmic_chtdc_ti.c and is also necessary for the upcoming drivers for the ADC and battery MFD cells. Fixes: 6bac0606fdba ("mfd: Add support for Cherry Trail Dollar Cove TI PMIC") Cc: stable(a)vger.kernel.org Reviewed-by: Andy Shevchenko <andy(a)kernel.org> Signed-off-by: Hans de Goede <hansg(a)kernel.org> Link: https://lore.kernel.org/r/20250804133240.312383-1-hansg@kernel.org Signed-off-by: Lee Jones <lee(a)kernel.org> diff --git a/drivers/mfd/intel_soc_pmic_chtdc_ti.c b/drivers/mfd/intel_soc_pmic_chtdc_ti.c index 4c1a68c9f575..6daf33e07ea0 100644 --- a/drivers/mfd/intel_soc_pmic_chtdc_ti.c +++ b/drivers/mfd/intel_soc_pmic_chtdc_ti.c @@ -82,6 +82,8 @@ static const struct regmap_config chtdc_ti_regmap_config = { .reg_bits = 8, .val_bits = 8, .max_register = 0xff, + /* The hardware does not support reading multiple registers at once */ + .use_single_read = true, }; static const struct regmap_irq chtdc_ti_irqs[] = {

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FAILED: patch "[PATCH] mfd: intel_soc_pmic_chtdc_ti: Set use_single_read" failed to apply to 6.1-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.1-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y git checkout FETCH_HEAD git cherry-pick -x 64e0d839c589f4f2ecd2e3e5bdb5cee6ba6bade9 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025101307-little-reseal-5a13@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 64e0d839c589f4f2ecd2e3e5bdb5cee6ba6bade9 Mon Sep 17 00:00:00 2001 From: Hans de Goede <hansg(a)kernel.org> Date: Mon, 4 Aug 2025 15:32:40 +0200 Subject: [PATCH] mfd: intel_soc_pmic_chtdc_ti: Set use_single_read regmap_config flag Testing has shown that reading multiple registers at once (for 10-bit ADC values) does not work. Set the use_single_read regmap_config flag to make regmap split these for us. This should fix temperature opregion accesses done by drivers/acpi/pmic/intel_pmic_chtdc_ti.c and is also necessary for the upcoming drivers for the ADC and battery MFD cells. Fixes: 6bac0606fdba ("mfd: Add support for Cherry Trail Dollar Cove TI PMIC") Cc: stable(a)vger.kernel.org Reviewed-by: Andy Shevchenko <andy(a)kernel.org> Signed-off-by: Hans de Goede <hansg(a)kernel.org> Link: https://lore.kernel.org/r/20250804133240.312383-1-hansg@kernel.org Signed-off-by: Lee Jones <lee(a)kernel.org> diff --git a/drivers/mfd/intel_soc_pmic_chtdc_ti.c b/drivers/mfd/intel_soc_pmic_chtdc_ti.c index 4c1a68c9f575..6daf33e07ea0 100644 --- a/drivers/mfd/intel_soc_pmic_chtdc_ti.c +++ b/drivers/mfd/intel_soc_pmic_chtdc_ti.c @@ -82,6 +82,8 @@ static const struct regmap_config chtdc_ti_regmap_config = { .reg_bits = 8, .val_bits = 8, .max_register = 0xff, + /* The hardware does not support reading multiple registers at once */ + .use_single_read = true, }; static const struct regmap_irq chtdc_ti_irqs[] = {

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+ mm-mremap-correctly-account-old-mapping-after-mremap_dontunmap-remap.patch added to mm-hotfixes-unstable branch

by Andrew Morton

The patch titled Subject: mm/mremap: correctly account old mapping after MREMAP_DONTUNMAP remap has been added to the -mm mm-hotfixes-unstable branch. Its filename is mm-mremap-correctly-account-old-mapping-after-mremap_dontunmap-remap.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patche… This patch will later appear in the mm-hotfixes-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Lorenzo Stoakes <lorenzo.stoakes(a)oracle.com> Subject: mm/mremap: correctly account old mapping after MREMAP_DONTUNMAP remap Date: Mon, 13 Oct 2025 17:58:36 +0100 Commit b714ccb02a76 ("mm/mremap: complete refactor of move_vma()") mistakenly introduced a new behaviour - clearing the VM_ACCOUNT flag of the old mapping when a mapping is mremap()'d with the MREMAP_DONTUNMAP flag set. While we always clear the VM_LOCKED and VM_LOCKONFAULT flags for the old mapping (the page tables have been moved, so there is no data that could possibly be locked in memory), there is no reason to touch any other VMA flags. This is because after the move the old mapping is in a state as if it were freshly mapped. This implies that the attributes of the mapping ought to remain the same, including whether or not the mapping is accounted. Link: https://lkml.kernel.org/r/20251013165836.273113-1-lorenzo.stoakes@oracle.com Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes(a)oracle.com> Fixes: b714ccb02a76 ("mm/mremap: complete refactor of move_vma()") Cc: Jann Horn <jannh(a)google.com> Cc: Liam Howlett <liam.howlett(a)oracle.com> Cc: Vlastimil Babka <vbabka(a)suse.cz> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> --- mm/mremap.c | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-) --- a/mm/mremap.c~mm-mremap-correctly-account-old-mapping-after-mremap_dontunmap-remap +++ a/mm/mremap.c @@ -1237,10 +1237,10 @@ static int copy_vma_and_data(struct vma_ } /* - * Perform final tasks for MADV_DONTUNMAP operation, clearing mlock() and - * account flags on remaining VMA by convention (it cannot be mlock()'d any - * longer, as pages in range are no longer mapped), and removing anon_vma_chain - * links from it (if the entire VMA was copied over). + * Perform final tasks for MADV_DONTUNMAP operation, clearing mlock() flag on + * remaining VMA by convention (it cannot be mlock()'d any longer, as pages in + * range are no longer mapped), and removing anon_vma_chain links from it if the + * entire VMA was copied over. */ static void dontunmap_complete(struct vma_remap_struct *vrm, struct vm_area_struct *new_vma) @@ -1250,11 +1250,8 @@ static void dontunmap_complete(struct vm unsigned long old_start = vrm->vma->vm_start; unsigned long old_end = vrm->vma->vm_end; - /* - * We always clear VM_LOCKED[ONFAULT] | VM_ACCOUNT on the old - * vma. - */ - vm_flags_clear(vrm->vma, VM_LOCKED_MASK | VM_ACCOUNT); + /* We always clear VM_LOCKED[ONFAULT] on the old VMA. */ + vm_flags_clear(vrm->vma, VM_LOCKED_MASK); /* * anon_vma links of the old vma is no longer needed after its page _ Patches currently in -mm which might be from lorenzo.stoakes(a)oracle.com are mm-mremap-correctly-account-old-mapping-after-mremap_dontunmap-remap.patch mm-shmem-update-shmem-to-use-mmap_prepare.patch device-dax-update-devdax-to-use-mmap_prepare.patch mm-add-vma_desc_size-vma_desc_pages-helpers.patch relay-update-relay-to-use-mmap_prepare.patch mm-vma-rename-__mmap_prepare-function-to-avoid-confusion.patch mm-add-remap_pfn_range_prepare-remap_pfn_range_complete.patch mm-abstract-io_remap_pfn_range-based-on-pfn.patch mm-introduce-io_remap_pfn_range_.patch mm-introduce-io_remap_pfn_range_-fix.patch mm-add-ability-to-take-further-action-in-vm_area_desc.patch doc-update-porting-vfs-documentation-for-mmap_prepare-actions.patch mm-hugetlbfs-update-hugetlbfs-to-use-mmap_prepare.patch mm-add-shmem_zero_setup_desc.patch mm-update-mem-char-driver-to-use-mmap_prepare.patch mm-update-resctl-to-use-mmap_prepare.patch

2 weeks, 5 days

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[PATCH 3/3] xhci: dbc: enable back DbC in resume if it was enabled before suspend

by Mathias Nyman

DbC is currently only enabled back if it's in configured state during suspend. If system is suspended after DbC is enabled, but before the device is properly enumerated by the host, then DbC would not be enabled back in resume. Always enable DbC back in resume if it's suspended in enabled, connected, or configured state Cc: stable(a)vger.kernel.org Fixes: dfba2174dc42 ("usb: xhci: Add DbC support in xHCI driver") Tested-by: Łukasz Bartosik <ukaszb(a)chromium.org> Signed-off-by: Mathias Nyman <mathias.nyman(a)linux.intel.com> --- drivers/usb/host/xhci-dbgcap.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/usb/host/xhci-dbgcap.c b/drivers/usb/host/xhci-dbgcap.c index 023a8ec6f305..ecda964e018a 100644 --- a/drivers/usb/host/xhci-dbgcap.c +++ b/drivers/usb/host/xhci-dbgcap.c @@ -1392,8 +1392,15 @@ int xhci_dbc_suspend(struct xhci_hcd *xhci) if (!dbc) return 0; - if (dbc->state == DS_CONFIGURED) + switch (dbc->state) { + case DS_ENABLED: + case DS_CONNECTED: + case DS_CONFIGURED: dbc->resume_required = 1; + break; + default: + break; + } xhci_dbc_stop(dbc); -- 2.43.0

2 weeks, 5 days

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[PATCH 2/3] xhci: dbc: fix bogus 1024 byte prefix if ttyDBC read races with stall event

by Mathias Nyman

DbC may add 1024 bogus bytes to the beginneing of the receiving endpoint if DbC hw triggers a STALL event before any Transfer Blocks (TRBs) for incoming data are queued, but driver handles the event after it queued the TRBs. This is possible as xHCI DbC hardware may trigger spurious STALL transfer events even if endpoint is empty. The STALL event contains a pointer to the stalled TRB, and "remaining" untransferred data length. As there are no TRBs queued yet the STALL event will just point to first TRB position of the empty ring, with '0' bytes remaining untransferred. DbC driver is polling for events, and may not handle the STALL event before /dev/ttyDBC0 is opened and incoming data TRBs are queued. The DbC event handler will now assume the first queued TRB (length 1024) has stalled with '0' bytes remaining untransferred, and copies the data This race situation can be practically mitigated by making sure the event handler handles all pending transfer events when DbC reaches configured state, and only then create dev/ttyDbC0, and start queueing transfers. The event handler can this way detect the STALL events on empty rings and discard them before any transfers are queued. This does in practice solve the issue, but still leaves a small possible gap for the race to trigger. We still need a way to distinguish spurious STALLs on empty rings with '0' bytes remaing, from actual STALL events with all bytes transmitted. Cc: stable(a)vger.kernel.org Fixes: dfba2174dc42 ("usb: xhci: Add DbC support in xHCI driver") Tested-by: Łukasz Bartosik <ukaszb(a)chromium.org> Signed-off-by: Mathias Nyman <mathias.nyman(a)linux.intel.com> --- drivers/usb/host/xhci-dbgcap.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/usb/host/xhci-dbgcap.c b/drivers/usb/host/xhci-dbgcap.c index 63edf2d8f245..023a8ec6f305 100644 --- a/drivers/usb/host/xhci-dbgcap.c +++ b/drivers/usb/host/xhci-dbgcap.c @@ -892,7 +892,8 @@ static enum evtreturn xhci_dbc_do_handle_events(struct xhci_dbc *dbc) dev_info(dbc->dev, "DbC configured\n"); portsc = readl(&dbc->regs->portsc); writel(portsc, &dbc->regs->portsc); - return EVT_GSER; + ret = EVT_GSER; + break; } return EVT_DONE; @@ -954,7 +955,8 @@ static enum evtreturn xhci_dbc_do_handle_events(struct xhci_dbc *dbc) break; case TRB_TYPE(TRB_TRANSFER): dbc_handle_xfer_event(dbc, evt); - ret = EVT_XFER_DONE; + if (ret != EVT_GSER) + ret = EVT_XFER_DONE; break; default: break; -- 2.43.0

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FAILED: patch "[PATCH] mfd: intel_soc_pmic_chtdc_ti: Set use_single_read" failed to apply to 6.6-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.6-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y git checkout FETCH_HEAD git cherry-pick -x 64e0d839c589f4f2ecd2e3e5bdb5cee6ba6bade9 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025101306-cufflink-fidgeting-4c7b@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 64e0d839c589f4f2ecd2e3e5bdb5cee6ba6bade9 Mon Sep 17 00:00:00 2001 From: Hans de Goede <hansg(a)kernel.org> Date: Mon, 4 Aug 2025 15:32:40 +0200 Subject: [PATCH] mfd: intel_soc_pmic_chtdc_ti: Set use_single_read regmap_config flag Testing has shown that reading multiple registers at once (for 10-bit ADC values) does not work. Set the use_single_read regmap_config flag to make regmap split these for us. This should fix temperature opregion accesses done by drivers/acpi/pmic/intel_pmic_chtdc_ti.c and is also necessary for the upcoming drivers for the ADC and battery MFD cells. Fixes: 6bac0606fdba ("mfd: Add support for Cherry Trail Dollar Cove TI PMIC") Cc: stable(a)vger.kernel.org Reviewed-by: Andy Shevchenko <andy(a)kernel.org> Signed-off-by: Hans de Goede <hansg(a)kernel.org> Link: https://lore.kernel.org/r/20250804133240.312383-1-hansg@kernel.org Signed-off-by: Lee Jones <lee(a)kernel.org> diff --git a/drivers/mfd/intel_soc_pmic_chtdc_ti.c b/drivers/mfd/intel_soc_pmic_chtdc_ti.c index 4c1a68c9f575..6daf33e07ea0 100644 --- a/drivers/mfd/intel_soc_pmic_chtdc_ti.c +++ b/drivers/mfd/intel_soc_pmic_chtdc_ti.c @@ -82,6 +82,8 @@ static const struct regmap_config chtdc_ti_regmap_config = { .reg_bits = 8, .val_bits = 8, .max_register = 0xff, + /* The hardware does not support reading multiple registers at once */ + .use_single_read = true, }; static const struct regmap_irq chtdc_ti_irqs[] = {

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FAILED: patch "[PATCH] media: mc: Clear minor number before put device" failed to apply to 5.4-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y git checkout FETCH_HEAD git cherry-pick -x 8cfc8cec1b4da88a47c243a11f384baefd092a50 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025101340-boned-upright-7693@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 8cfc8cec1b4da88a47c243a11f384baefd092a50 Mon Sep 17 00:00:00 2001 From: Edward Adam Davis <eadavis(a)qq.com> Date: Wed, 10 Sep 2025 09:15:27 +0800 Subject: [PATCH] media: mc: Clear minor number before put device The device minor should not be cleared after the device is released. Fixes: 9e14868dc952 ("media: mc: Clear minor number reservation at unregistration time") Cc: stable(a)vger.kernel.org Reported-by: syzbot+031d0cfd7c362817963f(a)syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=031d0cfd7c362817963f Tested-by: syzbot+031d0cfd7c362817963f(a)syzkaller.appspotmail.com Signed-off-by: Edward Adam Davis <eadavis(a)qq.com> Signed-off-by: Sakari Ailus <sakari.ailus(a)linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil+cisco(a)kernel.org> diff --git a/drivers/media/mc/mc-devnode.c b/drivers/media/mc/mc-devnode.c index 0d01cbae98f2..6daa7aa99442 100644 --- a/drivers/media/mc/mc-devnode.c +++ b/drivers/media/mc/mc-devnode.c @@ -276,13 +276,10 @@ void media_devnode_unregister(struct media_devnode *devnode) /* Delete the cdev on this minor as well */ cdev_device_del(&devnode->cdev, &devnode->dev); devnode->media_dev = NULL; + clear_bit(devnode->minor, media_devnode_nums); mutex_unlock(&media_devnode_lock); put_device(&devnode->dev); - - mutex_lock(&media_devnode_lock); - clear_bit(devnode->minor, media_devnode_nums); - mutex_unlock(&media_devnode_lock); } /*

2 weeks, 5 days

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FAILED: patch "[PATCH] mfd: intel_soc_pmic_chtdc_ti: Set use_single_read" failed to apply to 6.12-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.12-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.12.y git checkout FETCH_HEAD git cherry-pick -x 64e0d839c589f4f2ecd2e3e5bdb5cee6ba6bade9 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025101305-cheek-copartner-c523@gregkh' --subject-prefix 'PATCH 6.12.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 64e0d839c589f4f2ecd2e3e5bdb5cee6ba6bade9 Mon Sep 17 00:00:00 2001 From: Hans de Goede <hansg(a)kernel.org> Date: Mon, 4 Aug 2025 15:32:40 +0200 Subject: [PATCH] mfd: intel_soc_pmic_chtdc_ti: Set use_single_read regmap_config flag Testing has shown that reading multiple registers at once (for 10-bit ADC values) does not work. Set the use_single_read regmap_config flag to make regmap split these for us. This should fix temperature opregion accesses done by drivers/acpi/pmic/intel_pmic_chtdc_ti.c and is also necessary for the upcoming drivers for the ADC and battery MFD cells. Fixes: 6bac0606fdba ("mfd: Add support for Cherry Trail Dollar Cove TI PMIC") Cc: stable(a)vger.kernel.org Reviewed-by: Andy Shevchenko <andy(a)kernel.org> Signed-off-by: Hans de Goede <hansg(a)kernel.org> Link: https://lore.kernel.org/r/20250804133240.312383-1-hansg@kernel.org Signed-off-by: Lee Jones <lee(a)kernel.org> diff --git a/drivers/mfd/intel_soc_pmic_chtdc_ti.c b/drivers/mfd/intel_soc_pmic_chtdc_ti.c index 4c1a68c9f575..6daf33e07ea0 100644 --- a/drivers/mfd/intel_soc_pmic_chtdc_ti.c +++ b/drivers/mfd/intel_soc_pmic_chtdc_ti.c @@ -82,6 +82,8 @@ static const struct regmap_config chtdc_ti_regmap_config = { .reg_bits = 8, .val_bits = 8, .max_register = 0xff, + /* The hardware does not support reading multiple registers at once */ + .use_single_read = true, }; static const struct regmap_irq chtdc_ti_irqs[] = {

2 weeks, 5 days

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FAILED: patch "[PATCH] media: mc: Clear minor number before put device" failed to apply to 5.10-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.10-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y git checkout FETCH_HEAD git cherry-pick -x 8cfc8cec1b4da88a47c243a11f384baefd092a50 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025101339-polygraph-crept-0130@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 8cfc8cec1b4da88a47c243a11f384baefd092a50 Mon Sep 17 00:00:00 2001 From: Edward Adam Davis <eadavis(a)qq.com> Date: Wed, 10 Sep 2025 09:15:27 +0800 Subject: [PATCH] media: mc: Clear minor number before put device The device minor should not be cleared after the device is released. Fixes: 9e14868dc952 ("media: mc: Clear minor number reservation at unregistration time") Cc: stable(a)vger.kernel.org Reported-by: syzbot+031d0cfd7c362817963f(a)syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=031d0cfd7c362817963f Tested-by: syzbot+031d0cfd7c362817963f(a)syzkaller.appspotmail.com Signed-off-by: Edward Adam Davis <eadavis(a)qq.com> Signed-off-by: Sakari Ailus <sakari.ailus(a)linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil+cisco(a)kernel.org> diff --git a/drivers/media/mc/mc-devnode.c b/drivers/media/mc/mc-devnode.c index 0d01cbae98f2..6daa7aa99442 100644 --- a/drivers/media/mc/mc-devnode.c +++ b/drivers/media/mc/mc-devnode.c @@ -276,13 +276,10 @@ void media_devnode_unregister(struct media_devnode *devnode) /* Delete the cdev on this minor as well */ cdev_device_del(&devnode->cdev, &devnode->dev); devnode->media_dev = NULL; + clear_bit(devnode->minor, media_devnode_nums); mutex_unlock(&media_devnode_lock); put_device(&devnode->dev); - - mutex_lock(&media_devnode_lock); - clear_bit(devnode->minor, media_devnode_nums); - mutex_unlock(&media_devnode_lock); } /*

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Linux-stable-mirror October 2025