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FAILED: patch "[PATCH] mm: fix uprobe pte be overwritten when expanding vma" 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 2b12d06c37fd3a394376f42f026a7478d826ed63 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062011-earache-whenever-2435@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 2b12d06c37fd3a394376f42f026a7478d826ed63 Mon Sep 17 00:00:00 2001 From: Pu Lehui <pulehui(a)huawei.com> Date: Thu, 29 May 2025 15:56:47 +0000 Subject: [PATCH] mm: fix uprobe pte be overwritten when expanding vma Patch series "Fix uprobe pte be overwritten when expanding vma". This patch (of 4): We encountered a BUG alert triggered by Syzkaller as follows: BUG: Bad rss-counter state mm:00000000b4a60fca type:MM_ANONPAGES val:1 And we can reproduce it with the following steps: 1. register uprobe on file at zero offset 2. mmap the file at zero offset: addr1 = mmap(NULL, 2 * 4096, PROT_NONE, MAP_PRIVATE, fd, 0); 3. mremap part of vma1 to new vma2: addr2 = mremap(addr1, 4096, 2 * 4096, MREMAP_MAYMOVE); 4. mremap back to orig addr1: mremap(addr2, 4096, 4096, MREMAP_MAYMOVE | MREMAP_FIXED, addr1); In step 3, the vma1 range [addr1, addr1 + 4096] will be remap to new vma2 with range [addr2, addr2 + 8192], and remap uprobe anon page from the vma1 to vma2, then unmap the vma1 range [addr1, addr1 + 4096]. In step 4, the vma2 range [addr2, addr2 + 4096] will be remap back to the addr range [addr1, addr1 + 4096]. Since the addr range [addr1 + 4096, addr1 + 8192] still maps the file, it will take vma_merge_new_range to expand the range, and then do uprobe_mmap in vma_complete. Since the merged vma pgoff is also zero offset, it will install uprobe anon page to the merged vma. However, the upcomming move_page_tables step, which use set_pte_at to remap the vma2 uprobe pte to the merged vma, will overwrite the newly uprobe pte in the merged vma, and lead that pte to be orphan. Since the uprobe pte will be remapped to the merged vma, we can remove the unnecessary uprobe_mmap upon merged vma. This problem was first found in linux-6.6.y and also exists in the community syzkaller: https://lore.kernel.org/all/000000000000ada39605a5e71711@google.com/T/ Link: https://lkml.kernel.org/r/20250529155650.4017699-1-pulehui@huaweicloud.com Link: https://lkml.kernel.org/r/20250529155650.4017699-2-pulehui@huaweicloud.com Fixes: 2b1444983508 ("uprobes, mm, x86: Add the ability to install and remove uprobes breakpoints") Signed-off-by: Pu Lehui <pulehui(a)huawei.com> Suggested-by: Lorenzo Stoakes <lorenzo.stoakes(a)oracle.com> Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes(a)oracle.com> Acked-by: David Hildenbrand <david(a)redhat.com> Cc: Jann Horn <jannh(a)google.com> Cc: Liam Howlett <liam.howlett(a)oracle.com> Cc: "Masami Hiramatsu (Google)" <mhiramat(a)kernel.org> Cc: Oleg Nesterov <oleg(a)redhat.com> Cc: Peter Zijlstra <peterz(a)infradead.org> Cc: Vlastimil Babka <vbabka(a)suse.cz> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> diff --git a/mm/vma.c b/mm/vma.c index 1c6595f282e5..b2d7c03d8aa4 100644 --- a/mm/vma.c +++ b/mm/vma.c @@ -169,6 +169,9 @@ static void init_multi_vma_prep(struct vma_prepare *vp, vp->file = vma->vm_file; if (vp->file) vp->mapping = vma->vm_file->f_mapping; + + if (vmg && vmg->skip_vma_uprobe) + vp->skip_vma_uprobe = true; } /* @@ -358,10 +361,13 @@ static void vma_complete(struct vma_prepare *vp, struct vma_iterator *vmi, if (vp->file) { i_mmap_unlock_write(vp->mapping); - uprobe_mmap(vp->vma); - if (vp->adj_next) - uprobe_mmap(vp->adj_next); + if (!vp->skip_vma_uprobe) { + uprobe_mmap(vp->vma); + + if (vp->adj_next) + uprobe_mmap(vp->adj_next); + } } if (vp->remove) { @@ -1823,6 +1829,14 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap, faulted_in_anon_vma = false; } + /* + * If the VMA we are copying might contain a uprobe PTE, ensure + * that we do not establish one upon merge. Otherwise, when mremap() + * moves page tables, it will orphan the newly created PTE. + */ + if (vma->vm_file) + vmg.skip_vma_uprobe = true; + new_vma = find_vma_prev(mm, addr, &vmg.prev); if (new_vma && new_vma->vm_start < addr + len) return NULL; /* should never get here */ diff --git a/mm/vma.h b/mm/vma.h index 9a8af9be29a8..0db066e7a45d 100644 --- a/mm/vma.h +++ b/mm/vma.h @@ -19,6 +19,8 @@ struct vma_prepare { struct vm_area_struct *insert; struct vm_area_struct *remove; struct vm_area_struct *remove2; + + bool skip_vma_uprobe :1; }; struct unlink_vma_file_batch { @@ -120,6 +122,11 @@ struct vma_merge_struct { */ bool give_up_on_oom :1; + /* + * If set, skip uprobe_mmap upon merged vma. + */ + bool skip_vma_uprobe :1; + /* Internal flags set during merge process: */ /*

2 months, 3 weeks

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FAILED: patch "[PATCH] mm: fix uprobe pte be overwritten when expanding vma" 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 2b12d06c37fd3a394376f42f026a7478d826ed63 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062009-customs-outskirts-5826@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 2b12d06c37fd3a394376f42f026a7478d826ed63 Mon Sep 17 00:00:00 2001 From: Pu Lehui <pulehui(a)huawei.com> Date: Thu, 29 May 2025 15:56:47 +0000 Subject: [PATCH] mm: fix uprobe pte be overwritten when expanding vma Patch series "Fix uprobe pte be overwritten when expanding vma". This patch (of 4): We encountered a BUG alert triggered by Syzkaller as follows: BUG: Bad rss-counter state mm:00000000b4a60fca type:MM_ANONPAGES val:1 And we can reproduce it with the following steps: 1. register uprobe on file at zero offset 2. mmap the file at zero offset: addr1 = mmap(NULL, 2 * 4096, PROT_NONE, MAP_PRIVATE, fd, 0); 3. mremap part of vma1 to new vma2: addr2 = mremap(addr1, 4096, 2 * 4096, MREMAP_MAYMOVE); 4. mremap back to orig addr1: mremap(addr2, 4096, 4096, MREMAP_MAYMOVE | MREMAP_FIXED, addr1); In step 3, the vma1 range [addr1, addr1 + 4096] will be remap to new vma2 with range [addr2, addr2 + 8192], and remap uprobe anon page from the vma1 to vma2, then unmap the vma1 range [addr1, addr1 + 4096]. In step 4, the vma2 range [addr2, addr2 + 4096] will be remap back to the addr range [addr1, addr1 + 4096]. Since the addr range [addr1 + 4096, addr1 + 8192] still maps the file, it will take vma_merge_new_range to expand the range, and then do uprobe_mmap in vma_complete. Since the merged vma pgoff is also zero offset, it will install uprobe anon page to the merged vma. However, the upcomming move_page_tables step, which use set_pte_at to remap the vma2 uprobe pte to the merged vma, will overwrite the newly uprobe pte in the merged vma, and lead that pte to be orphan. Since the uprobe pte will be remapped to the merged vma, we can remove the unnecessary uprobe_mmap upon merged vma. This problem was first found in linux-6.6.y and also exists in the community syzkaller: https://lore.kernel.org/all/000000000000ada39605a5e71711@google.com/T/ Link: https://lkml.kernel.org/r/20250529155650.4017699-1-pulehui@huaweicloud.com Link: https://lkml.kernel.org/r/20250529155650.4017699-2-pulehui@huaweicloud.com Fixes: 2b1444983508 ("uprobes, mm, x86: Add the ability to install and remove uprobes breakpoints") Signed-off-by: Pu Lehui <pulehui(a)huawei.com> Suggested-by: Lorenzo Stoakes <lorenzo.stoakes(a)oracle.com> Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes(a)oracle.com> Acked-by: David Hildenbrand <david(a)redhat.com> Cc: Jann Horn <jannh(a)google.com> Cc: Liam Howlett <liam.howlett(a)oracle.com> Cc: "Masami Hiramatsu (Google)" <mhiramat(a)kernel.org> Cc: Oleg Nesterov <oleg(a)redhat.com> Cc: Peter Zijlstra <peterz(a)infradead.org> Cc: Vlastimil Babka <vbabka(a)suse.cz> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> diff --git a/mm/vma.c b/mm/vma.c index 1c6595f282e5..b2d7c03d8aa4 100644 --- a/mm/vma.c +++ b/mm/vma.c @@ -169,6 +169,9 @@ static void init_multi_vma_prep(struct vma_prepare *vp, vp->file = vma->vm_file; if (vp->file) vp->mapping = vma->vm_file->f_mapping; + + if (vmg && vmg->skip_vma_uprobe) + vp->skip_vma_uprobe = true; } /* @@ -358,10 +361,13 @@ static void vma_complete(struct vma_prepare *vp, struct vma_iterator *vmi, if (vp->file) { i_mmap_unlock_write(vp->mapping); - uprobe_mmap(vp->vma); - if (vp->adj_next) - uprobe_mmap(vp->adj_next); + if (!vp->skip_vma_uprobe) { + uprobe_mmap(vp->vma); + + if (vp->adj_next) + uprobe_mmap(vp->adj_next); + } } if (vp->remove) { @@ -1823,6 +1829,14 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap, faulted_in_anon_vma = false; } + /* + * If the VMA we are copying might contain a uprobe PTE, ensure + * that we do not establish one upon merge. Otherwise, when mremap() + * moves page tables, it will orphan the newly created PTE. + */ + if (vma->vm_file) + vmg.skip_vma_uprobe = true; + new_vma = find_vma_prev(mm, addr, &vmg.prev); if (new_vma && new_vma->vm_start < addr + len) return NULL; /* should never get here */ diff --git a/mm/vma.h b/mm/vma.h index 9a8af9be29a8..0db066e7a45d 100644 --- a/mm/vma.h +++ b/mm/vma.h @@ -19,6 +19,8 @@ struct vma_prepare { struct vm_area_struct *insert; struct vm_area_struct *remove; struct vm_area_struct *remove2; + + bool skip_vma_uprobe :1; }; struct unlink_vma_file_batch { @@ -120,6 +122,11 @@ struct vma_merge_struct { */ bool give_up_on_oom :1; + /* + * If set, skip uprobe_mmap upon merged vma. + */ + bool skip_vma_uprobe :1; + /* Internal flags set during merge process: */ /*

2 months, 3 weeks

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FAILED: patch "[PATCH] mm: fix uprobe pte be overwritten when expanding vma" 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 2b12d06c37fd3a394376f42f026a7478d826ed63 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062008-scarcity-jaundice-0b6e@gregkh' --subject-prefix 'PATCH 6.12.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 2b12d06c37fd3a394376f42f026a7478d826ed63 Mon Sep 17 00:00:00 2001 From: Pu Lehui <pulehui(a)huawei.com> Date: Thu, 29 May 2025 15:56:47 +0000 Subject: [PATCH] mm: fix uprobe pte be overwritten when expanding vma Patch series "Fix uprobe pte be overwritten when expanding vma". This patch (of 4): We encountered a BUG alert triggered by Syzkaller as follows: BUG: Bad rss-counter state mm:00000000b4a60fca type:MM_ANONPAGES val:1 And we can reproduce it with the following steps: 1. register uprobe on file at zero offset 2. mmap the file at zero offset: addr1 = mmap(NULL, 2 * 4096, PROT_NONE, MAP_PRIVATE, fd, 0); 3. mremap part of vma1 to new vma2: addr2 = mremap(addr1, 4096, 2 * 4096, MREMAP_MAYMOVE); 4. mremap back to orig addr1: mremap(addr2, 4096, 4096, MREMAP_MAYMOVE | MREMAP_FIXED, addr1); In step 3, the vma1 range [addr1, addr1 + 4096] will be remap to new vma2 with range [addr2, addr2 + 8192], and remap uprobe anon page from the vma1 to vma2, then unmap the vma1 range [addr1, addr1 + 4096]. In step 4, the vma2 range [addr2, addr2 + 4096] will be remap back to the addr range [addr1, addr1 + 4096]. Since the addr range [addr1 + 4096, addr1 + 8192] still maps the file, it will take vma_merge_new_range to expand the range, and then do uprobe_mmap in vma_complete. Since the merged vma pgoff is also zero offset, it will install uprobe anon page to the merged vma. However, the upcomming move_page_tables step, which use set_pte_at to remap the vma2 uprobe pte to the merged vma, will overwrite the newly uprobe pte in the merged vma, and lead that pte to be orphan. Since the uprobe pte will be remapped to the merged vma, we can remove the unnecessary uprobe_mmap upon merged vma. This problem was first found in linux-6.6.y and also exists in the community syzkaller: https://lore.kernel.org/all/000000000000ada39605a5e71711@google.com/T/ Link: https://lkml.kernel.org/r/20250529155650.4017699-1-pulehui@huaweicloud.com Link: https://lkml.kernel.org/r/20250529155650.4017699-2-pulehui@huaweicloud.com Fixes: 2b1444983508 ("uprobes, mm, x86: Add the ability to install and remove uprobes breakpoints") Signed-off-by: Pu Lehui <pulehui(a)huawei.com> Suggested-by: Lorenzo Stoakes <lorenzo.stoakes(a)oracle.com> Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes(a)oracle.com> Acked-by: David Hildenbrand <david(a)redhat.com> Cc: Jann Horn <jannh(a)google.com> Cc: Liam Howlett <liam.howlett(a)oracle.com> Cc: "Masami Hiramatsu (Google)" <mhiramat(a)kernel.org> Cc: Oleg Nesterov <oleg(a)redhat.com> Cc: Peter Zijlstra <peterz(a)infradead.org> Cc: Vlastimil Babka <vbabka(a)suse.cz> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> diff --git a/mm/vma.c b/mm/vma.c index 1c6595f282e5..b2d7c03d8aa4 100644 --- a/mm/vma.c +++ b/mm/vma.c @@ -169,6 +169,9 @@ static void init_multi_vma_prep(struct vma_prepare *vp, vp->file = vma->vm_file; if (vp->file) vp->mapping = vma->vm_file->f_mapping; + + if (vmg && vmg->skip_vma_uprobe) + vp->skip_vma_uprobe = true; } /* @@ -358,10 +361,13 @@ static void vma_complete(struct vma_prepare *vp, struct vma_iterator *vmi, if (vp->file) { i_mmap_unlock_write(vp->mapping); - uprobe_mmap(vp->vma); - if (vp->adj_next) - uprobe_mmap(vp->adj_next); + if (!vp->skip_vma_uprobe) { + uprobe_mmap(vp->vma); + + if (vp->adj_next) + uprobe_mmap(vp->adj_next); + } } if (vp->remove) { @@ -1823,6 +1829,14 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap, faulted_in_anon_vma = false; } + /* + * If the VMA we are copying might contain a uprobe PTE, ensure + * that we do not establish one upon merge. Otherwise, when mremap() + * moves page tables, it will orphan the newly created PTE. + */ + if (vma->vm_file) + vmg.skip_vma_uprobe = true; + new_vma = find_vma_prev(mm, addr, &vmg.prev); if (new_vma && new_vma->vm_start < addr + len) return NULL; /* should never get here */ diff --git a/mm/vma.h b/mm/vma.h index 9a8af9be29a8..0db066e7a45d 100644 --- a/mm/vma.h +++ b/mm/vma.h @@ -19,6 +19,8 @@ struct vma_prepare { struct vm_area_struct *insert; struct vm_area_struct *remove; struct vm_area_struct *remove2; + + bool skip_vma_uprobe :1; }; struct unlink_vma_file_batch { @@ -120,6 +122,11 @@ struct vma_merge_struct { */ bool give_up_on_oom :1; + /* + * If set, skip uprobe_mmap upon merged vma. + */ + bool skip_vma_uprobe :1; + /* Internal flags set during merge process: */ /*

2 months, 3 weeks

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FAILED: patch "[PATCH] dummycon: Trigger redraw when switching consoles with" 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 03bcbbb3995ba5df43af9aba45334e35f2dfe27b # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062045-bungee-spooky-6ffe@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 03bcbbb3995ba5df43af9aba45334e35f2dfe27b Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann <tzimmermann(a)suse.de> Date: Tue, 20 May 2025 09:14:00 +0200 Subject: [PATCH] dummycon: Trigger redraw when switching consoles with deferred takeover Signal vt subsystem to redraw console when switching to dummycon with deferred takeover enabled. Makes the console switch to fbcon and displays the available output. With deferred takeover enabled, dummycon acts as the placeholder until the first output to the console happens. At that point, fbcon takes over. If the output happens while dummycon is not active, it cannot inform fbcon. This is the case if the vt subsystem runs in graphics mode. A typical graphical boot starts plymouth, a display manager and a compositor; all while leaving out dummycon. Switching to a text-mode console leaves the console with dummycon even if a getty terminal has been started. Returning true from dummycon's con_switch helper signals the vt subsystem to redraw the screen. If there's output available dummycon's con_putc{s} helpers trigger deferred takeover of fbcon, which sets a display mode and displays the output. If no output is available, dummycon remains active. v2: - make the comment slightly more verbose (Javier) Signed-off-by: Thomas Zimmermann <tzimmermann(a)suse.de> Reported-by: Andrei Borzenkov <arvidjaar(a)gmail.com> Closes: https://bugzilla.suse.com/show_bug.cgi?id=1242191 Tested-by: Andrei Borzenkov <arvidjaar(a)gmail.com> Acked-by: Javier Martinez Canillas <javierm(a)redhat.com> Fixes: 83d83bebf401 ("console/fbcon: Add support for deferred console takeover") Cc: Hans de Goede <hdegoede(a)redhat.com> Cc: linux-fbdev(a)vger.kernel.org Cc: dri-devel(a)lists.freedesktop.org Cc: <stable(a)vger.kernel.org> # v4.19+ Link: https://lore.kernel.org/r/20250520071418.8462-1-tzimmermann@suse.de diff --git a/drivers/video/console/dummycon.c b/drivers/video/console/dummycon.c index 139049368fdc..7d02470f19b9 100644 --- a/drivers/video/console/dummycon.c +++ b/drivers/video/console/dummycon.c @@ -85,6 +85,15 @@ static bool dummycon_blank(struct vc_data *vc, enum vesa_blank_mode blank, /* Redraw, so that we get putc(s) for output done while blanked */ return true; } + +static bool dummycon_switch(struct vc_data *vc) +{ + /* + * Redraw, so that we get putc(s) for output done while switched + * away. Informs deferred consoles to take over the display. + */ + return true; +} #else static void dummycon_putc(struct vc_data *vc, u16 c, unsigned int y, unsigned int x) { } @@ -95,6 +104,10 @@ static bool dummycon_blank(struct vc_data *vc, enum vesa_blank_mode blank, { return false; } +static bool dummycon_switch(struct vc_data *vc) +{ + return false; +} #endif static const char *dummycon_startup(void) @@ -124,11 +137,6 @@ static bool dummycon_scroll(struct vc_data *vc, unsigned int top, return false; } -static bool dummycon_switch(struct vc_data *vc) -{ - return false; -} - /* * The console `switch' structure for the dummy console *

2 months, 3 weeks

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FAILED: patch "[PATCH] dummycon: Trigger redraw when switching consoles with" 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 03bcbbb3995ba5df43af9aba45334e35f2dfe27b # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062042-wound-marathon-63cd@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 03bcbbb3995ba5df43af9aba45334e35f2dfe27b Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann <tzimmermann(a)suse.de> Date: Tue, 20 May 2025 09:14:00 +0200 Subject: [PATCH] dummycon: Trigger redraw when switching consoles with deferred takeover Signal vt subsystem to redraw console when switching to dummycon with deferred takeover enabled. Makes the console switch to fbcon and displays the available output. With deferred takeover enabled, dummycon acts as the placeholder until the first output to the console happens. At that point, fbcon takes over. If the output happens while dummycon is not active, it cannot inform fbcon. This is the case if the vt subsystem runs in graphics mode. A typical graphical boot starts plymouth, a display manager and a compositor; all while leaving out dummycon. Switching to a text-mode console leaves the console with dummycon even if a getty terminal has been started. Returning true from dummycon's con_switch helper signals the vt subsystem to redraw the screen. If there's output available dummycon's con_putc{s} helpers trigger deferred takeover of fbcon, which sets a display mode and displays the output. If no output is available, dummycon remains active. v2: - make the comment slightly more verbose (Javier) Signed-off-by: Thomas Zimmermann <tzimmermann(a)suse.de> Reported-by: Andrei Borzenkov <arvidjaar(a)gmail.com> Closes: https://bugzilla.suse.com/show_bug.cgi?id=1242191 Tested-by: Andrei Borzenkov <arvidjaar(a)gmail.com> Acked-by: Javier Martinez Canillas <javierm(a)redhat.com> Fixes: 83d83bebf401 ("console/fbcon: Add support for deferred console takeover") Cc: Hans de Goede <hdegoede(a)redhat.com> Cc: linux-fbdev(a)vger.kernel.org Cc: dri-devel(a)lists.freedesktop.org Cc: <stable(a)vger.kernel.org> # v4.19+ Link: https://lore.kernel.org/r/20250520071418.8462-1-tzimmermann@suse.de diff --git a/drivers/video/console/dummycon.c b/drivers/video/console/dummycon.c index 139049368fdc..7d02470f19b9 100644 --- a/drivers/video/console/dummycon.c +++ b/drivers/video/console/dummycon.c @@ -85,6 +85,15 @@ static bool dummycon_blank(struct vc_data *vc, enum vesa_blank_mode blank, /* Redraw, so that we get putc(s) for output done while blanked */ return true; } + +static bool dummycon_switch(struct vc_data *vc) +{ + /* + * Redraw, so that we get putc(s) for output done while switched + * away. Informs deferred consoles to take over the display. + */ + return true; +} #else static void dummycon_putc(struct vc_data *vc, u16 c, unsigned int y, unsigned int x) { } @@ -95,6 +104,10 @@ static bool dummycon_blank(struct vc_data *vc, enum vesa_blank_mode blank, { return false; } +static bool dummycon_switch(struct vc_data *vc) +{ + return false; +} #endif static const char *dummycon_startup(void) @@ -124,11 +137,6 @@ static bool dummycon_scroll(struct vc_data *vc, unsigned int top, return false; } -static bool dummycon_switch(struct vc_data *vc) -{ - return false; -} - /* * The console `switch' structure for the dummy console *

2 months, 3 weeks

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FAILED: patch "[PATCH] dummycon: Trigger redraw when switching consoles with" 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 03bcbbb3995ba5df43af9aba45334e35f2dfe27b # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062041-wrecking-disgrace-7467@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 03bcbbb3995ba5df43af9aba45334e35f2dfe27b Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann <tzimmermann(a)suse.de> Date: Tue, 20 May 2025 09:14:00 +0200 Subject: [PATCH] dummycon: Trigger redraw when switching consoles with deferred takeover Signal vt subsystem to redraw console when switching to dummycon with deferred takeover enabled. Makes the console switch to fbcon and displays the available output. With deferred takeover enabled, dummycon acts as the placeholder until the first output to the console happens. At that point, fbcon takes over. If the output happens while dummycon is not active, it cannot inform fbcon. This is the case if the vt subsystem runs in graphics mode. A typical graphical boot starts plymouth, a display manager and a compositor; all while leaving out dummycon. Switching to a text-mode console leaves the console with dummycon even if a getty terminal has been started. Returning true from dummycon's con_switch helper signals the vt subsystem to redraw the screen. If there's output available dummycon's con_putc{s} helpers trigger deferred takeover of fbcon, which sets a display mode and displays the output. If no output is available, dummycon remains active. v2: - make the comment slightly more verbose (Javier) Signed-off-by: Thomas Zimmermann <tzimmermann(a)suse.de> Reported-by: Andrei Borzenkov <arvidjaar(a)gmail.com> Closes: https://bugzilla.suse.com/show_bug.cgi?id=1242191 Tested-by: Andrei Borzenkov <arvidjaar(a)gmail.com> Acked-by: Javier Martinez Canillas <javierm(a)redhat.com> Fixes: 83d83bebf401 ("console/fbcon: Add support for deferred console takeover") Cc: Hans de Goede <hdegoede(a)redhat.com> Cc: linux-fbdev(a)vger.kernel.org Cc: dri-devel(a)lists.freedesktop.org Cc: <stable(a)vger.kernel.org> # v4.19+ Link: https://lore.kernel.org/r/20250520071418.8462-1-tzimmermann@suse.de diff --git a/drivers/video/console/dummycon.c b/drivers/video/console/dummycon.c index 139049368fdc..7d02470f19b9 100644 --- a/drivers/video/console/dummycon.c +++ b/drivers/video/console/dummycon.c @@ -85,6 +85,15 @@ static bool dummycon_blank(struct vc_data *vc, enum vesa_blank_mode blank, /* Redraw, so that we get putc(s) for output done while blanked */ return true; } + +static bool dummycon_switch(struct vc_data *vc) +{ + /* + * Redraw, so that we get putc(s) for output done while switched + * away. Informs deferred consoles to take over the display. + */ + return true; +} #else static void dummycon_putc(struct vc_data *vc, u16 c, unsigned int y, unsigned int x) { } @@ -95,6 +104,10 @@ static bool dummycon_blank(struct vc_data *vc, enum vesa_blank_mode blank, { return false; } +static bool dummycon_switch(struct vc_data *vc) +{ + return false; +} #endif static const char *dummycon_startup(void) @@ -124,11 +137,6 @@ static bool dummycon_scroll(struct vc_data *vc, unsigned int top, return false; } -static bool dummycon_switch(struct vc_data *vc) -{ - return false; -} - /* * The console `switch' structure for the dummy console *

2 months, 3 weeks

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FAILED: patch "[PATCH] dummycon: Trigger redraw when switching consoles with" 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 03bcbbb3995ba5df43af9aba45334e35f2dfe27b # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062040-scarring-repeal-109f@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 03bcbbb3995ba5df43af9aba45334e35f2dfe27b Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann <tzimmermann(a)suse.de> Date: Tue, 20 May 2025 09:14:00 +0200 Subject: [PATCH] dummycon: Trigger redraw when switching consoles with deferred takeover Signal vt subsystem to redraw console when switching to dummycon with deferred takeover enabled. Makes the console switch to fbcon and displays the available output. With deferred takeover enabled, dummycon acts as the placeholder until the first output to the console happens. At that point, fbcon takes over. If the output happens while dummycon is not active, it cannot inform fbcon. This is the case if the vt subsystem runs in graphics mode. A typical graphical boot starts plymouth, a display manager and a compositor; all while leaving out dummycon. Switching to a text-mode console leaves the console with dummycon even if a getty terminal has been started. Returning true from dummycon's con_switch helper signals the vt subsystem to redraw the screen. If there's output available dummycon's con_putc{s} helpers trigger deferred takeover of fbcon, which sets a display mode and displays the output. If no output is available, dummycon remains active. v2: - make the comment slightly more verbose (Javier) Signed-off-by: Thomas Zimmermann <tzimmermann(a)suse.de> Reported-by: Andrei Borzenkov <arvidjaar(a)gmail.com> Closes: https://bugzilla.suse.com/show_bug.cgi?id=1242191 Tested-by: Andrei Borzenkov <arvidjaar(a)gmail.com> Acked-by: Javier Martinez Canillas <javierm(a)redhat.com> Fixes: 83d83bebf401 ("console/fbcon: Add support for deferred console takeover") Cc: Hans de Goede <hdegoede(a)redhat.com> Cc: linux-fbdev(a)vger.kernel.org Cc: dri-devel(a)lists.freedesktop.org Cc: <stable(a)vger.kernel.org> # v4.19+ Link: https://lore.kernel.org/r/20250520071418.8462-1-tzimmermann@suse.de diff --git a/drivers/video/console/dummycon.c b/drivers/video/console/dummycon.c index 139049368fdc..7d02470f19b9 100644 --- a/drivers/video/console/dummycon.c +++ b/drivers/video/console/dummycon.c @@ -85,6 +85,15 @@ static bool dummycon_blank(struct vc_data *vc, enum vesa_blank_mode blank, /* Redraw, so that we get putc(s) for output done while blanked */ return true; } + +static bool dummycon_switch(struct vc_data *vc) +{ + /* + * Redraw, so that we get putc(s) for output done while switched + * away. Informs deferred consoles to take over the display. + */ + return true; +} #else static void dummycon_putc(struct vc_data *vc, u16 c, unsigned int y, unsigned int x) { } @@ -95,6 +104,10 @@ static bool dummycon_blank(struct vc_data *vc, enum vesa_blank_mode blank, { return false; } +static bool dummycon_switch(struct vc_data *vc) +{ + return false; +} #endif static const char *dummycon_startup(void) @@ -124,11 +137,6 @@ static bool dummycon_scroll(struct vc_data *vc, unsigned int top, return false; } -static bool dummycon_switch(struct vc_data *vc) -{ - return false; -} - /* * The console `switch' structure for the dummy console *

2 months, 3 weeks

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FAILED: patch "[PATCH] dummycon: Trigger redraw when switching consoles with" 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 03bcbbb3995ba5df43af9aba45334e35f2dfe27b # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062039-serving-unbutton-6eaf@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 03bcbbb3995ba5df43af9aba45334e35f2dfe27b Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann <tzimmermann(a)suse.de> Date: Tue, 20 May 2025 09:14:00 +0200 Subject: [PATCH] dummycon: Trigger redraw when switching consoles with deferred takeover Signal vt subsystem to redraw console when switching to dummycon with deferred takeover enabled. Makes the console switch to fbcon and displays the available output. With deferred takeover enabled, dummycon acts as the placeholder until the first output to the console happens. At that point, fbcon takes over. If the output happens while dummycon is not active, it cannot inform fbcon. This is the case if the vt subsystem runs in graphics mode. A typical graphical boot starts plymouth, a display manager and a compositor; all while leaving out dummycon. Switching to a text-mode console leaves the console with dummycon even if a getty terminal has been started. Returning true from dummycon's con_switch helper signals the vt subsystem to redraw the screen. If there's output available dummycon's con_putc{s} helpers trigger deferred takeover of fbcon, which sets a display mode and displays the output. If no output is available, dummycon remains active. v2: - make the comment slightly more verbose (Javier) Signed-off-by: Thomas Zimmermann <tzimmermann(a)suse.de> Reported-by: Andrei Borzenkov <arvidjaar(a)gmail.com> Closes: https://bugzilla.suse.com/show_bug.cgi?id=1242191 Tested-by: Andrei Borzenkov <arvidjaar(a)gmail.com> Acked-by: Javier Martinez Canillas <javierm(a)redhat.com> Fixes: 83d83bebf401 ("console/fbcon: Add support for deferred console takeover") Cc: Hans de Goede <hdegoede(a)redhat.com> Cc: linux-fbdev(a)vger.kernel.org Cc: dri-devel(a)lists.freedesktop.org Cc: <stable(a)vger.kernel.org> # v4.19+ Link: https://lore.kernel.org/r/20250520071418.8462-1-tzimmermann@suse.de diff --git a/drivers/video/console/dummycon.c b/drivers/video/console/dummycon.c index 139049368fdc..7d02470f19b9 100644 --- a/drivers/video/console/dummycon.c +++ b/drivers/video/console/dummycon.c @@ -85,6 +85,15 @@ static bool dummycon_blank(struct vc_data *vc, enum vesa_blank_mode blank, /* Redraw, so that we get putc(s) for output done while blanked */ return true; } + +static bool dummycon_switch(struct vc_data *vc) +{ + /* + * Redraw, so that we get putc(s) for output done while switched + * away. Informs deferred consoles to take over the display. + */ + return true; +} #else static void dummycon_putc(struct vc_data *vc, u16 c, unsigned int y, unsigned int x) { } @@ -95,6 +104,10 @@ static bool dummycon_blank(struct vc_data *vc, enum vesa_blank_mode blank, { return false; } +static bool dummycon_switch(struct vc_data *vc) +{ + return false; +} #endif static const char *dummycon_startup(void) @@ -124,11 +137,6 @@ static bool dummycon_scroll(struct vc_data *vc, unsigned int top, return false; } -static bool dummycon_switch(struct vc_data *vc) -{ - return false; -} - /* * The console `switch' structure for the dummy console *

2 months, 3 weeks

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[PATCH v2 0/4] arm64: dts: rockchip: enable further peripherals on ArmSoM Sige5

by Alexey Charkov

Link up the CPU regulators for DVFS, enable WiFi and Bluetooth. Different board versions use different incompatible WiFi/Bluetooth modules so split the version-specific bits out into an overlay. Basic WiFi functionality works even without an overlay, but OOB interrupts and all Bluetooth stuff requires one. My board is v1.2, so the overlay is only provided for it. Signed-off-by: Alexey Charkov <alchark(a)gmail.com> --- Changes in v2: - Expand the commit message for the patch linking CPU regulators and add tags for stable (thanks Nicolas) - Fix the ordering of cpu_b* nodes vs. combphy0_ps (thanks Diederik) - Drop the USB patch, as Nicolas has already posted a more comprehensive series including also the Type-C stuff (thanks Nicolas) - Pick up Nicolas' tags - Split out board version specific WiFi/Bluetooth stuff into an overlay - Link to v1: https://lore.kernel.org/r/20250603-sige5-updates-v1-0-717e8ce4ab77@gmail.com --- Alexey Charkov (4): arm64: dts: rockchip: list all CPU supplies on ArmSoM Sige5 arm64: dts: rockchip: add SDIO controller on RK3576 arm64: dts: rockchip: add version-independent WiFi/BT nodes on Sige5 arm64: dts: rockchip: add overlay for the WiFi/BT module on Sige5 v1.2 arch/arm64/boot/dts/rockchip/Makefile | 5 ++ .../rockchip/rk3576-armsom-sige5-v1.2-wifibt.dtso | 49 +++++++++++++ .../boot/dts/rockchip/rk3576-armsom-sige5.dts | 85 ++++++++++++++++++++++ arch/arm64/boot/dts/rockchip/rk3576.dtsi | 16 ++++ 4 files changed, 155 insertions(+) --- base-commit: 19272b37aa4f83ca52bdf9c16d5d81bdd1354494 change-id: 20250602-sige5-updates-a162b501a1b1 Best regards, -- Alexey Charkov <alchark(a)gmail.com>

2 months, 3 weeks

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Qualcomm Inventory Updated

by Alan Ye

The following are all Qualcomm's stock, original and authentic. If you need them, please contact us. Snapdragon骁龙 WIFI-5G/6G MPN QTY date code MPN QTY date code SM-6225-0-PSP807-TR-00-0-AB 8000 22+ IPQ5018-0-MRQFN232-MT-01-0 36000 22+ PM-6225-0-FOWNSP144-TR-01-0 8000 22+ QCN6102-0-DRQFN116-TR-01-0 30000 22+ WCD9375-0-WLPSP55-TR-01-3 8000 22+ QCA8337-AL3C 25000 22+ WTR3925-2-106BWLPSP-TR-03-1 8000 22+ WCN-3950-0-58WLPSP-TR-05-2 8000 22+ IPQ-6000-0-FCBGA570-TR-00-0 10000 22+ QCA-8072-0-108DRQFN-MT-00-0 10000 22+ QCM-6490-1-PSP1287-TR-00-0-AA E 12000 23+ QCN-5022-0-DRQFN100B-TR-00-0 10000 22+ PMK-7325-1-1-FOWPSP36-MT-01-0 12000 23+ QCN-5052-0-DRQFN100B-TR-00-0 10000 22+ PM-7325-0-WLNSP120B-TR-00-0 12000 23+ PM-7350C-0-FOWNSP143-MT-02-0 12000 23+ IPQ-6010-0-FCBGA570-TR-00-0 8000 22+ PM-7250B-2-FOWPSP110-TR-00-0 12000 23+ QCA-8075-0-108DRQFN-MT-01-0 8000 22+ WCD-9370-0-WLPSP55-TR-01-0 12000 23+ QCN-5052-0-DRQFN100B-TR-00-0 8000 22+ PM-8008-0-WLPSP20-TR-X0-0 12000 23+ QCN-5021-0-DRQFN100B-TR-03-0 8000 22+ SDR-735-0-PSP219B-TR-001-0 12000 23+ WCN-6750-0-PSP229-TR-01-0 12000 23+ QCA-9886-0-100DRQFN-MT-04-0 14000 22+ QCA9563-AL3A 14000 22+ SDM-450-B-792NSP-TR-01-0-AA 20000 24+ QCA8334-AL3C 14000 22+ WTR-2965-0-59F0WNSP-TR-07-1 20000 24+ PMI-8952-0-144WLNSP-TR-02-0-00 20000 24+ IPQ-5322-0-MRQFN251-MT-00-0 6000 24+ WCN-3680B-0-79BWLNSP-TR-05-1 20000 24+ QCN-6274-0-MSP264-MT-01-0 6000 24+ PM-8953-0-187F0WNSP-TR-01-1 20000 24+ QCA-8385-0-DRQFN172-MT-00-0 6000 24 SDM-660-3-692NSP-TR-01-0-A 28000 23+ IPQ-4018-0-180DRQFN-MT-00-0 150000 22+ PM-660-0-219WLPSP-TR-01-1-01 28000 23+ QCA-8072-0-108DRQFN-MT-00-0 100000 22+ PM-660L-0-196WLPSP-TR-04-0-01 28000 23+ SDR-660-0-180WLPSP-TR-03-0 28000 23+ QCN-9024-0-MSP234-TR-01-0 5000 23+ QET-4101-0-12WLNSP-HR-00-0 28000 23+ QCN-6024-0-MSP234-MT-01-0 20000 22+ WCN-3980-0-82BWLPSP-TR-0B-0 28000 23+ QCA-8081-0-56MQFN-MT-02-0 28000 22+ QCN-9074-0-MSP234-TR-01-0 8000 23+ QCM-2290-0-NSP752-TR-00-0 10000 24+ QCA-9377-3-115WLNSP-TR-03-0 10000 22+ PM-8008-0-WLPSP20-TR-X0-0 10000 24+ QCA-1023-0-115WLNSP-TR-03-0 20000 24+ WCN-3950-0-58WLPSP-TR-05-3 10000 24+ QCC-5181-0-WLNSP99-TR-05-0 10000 24+ PM-4125-3-NSP194-TR-01-0 10000 24+ QCC-5127-0-124CSP-TR-00-0 8000 23+ CSR8670C-ICXT-R 10000 23+ MSM-8909-2-504NSP-TR-01-1-AA 50000 22+ CSR8675C-IBBH-R 10000 23+ WCN-3660B-0-79BWLNSP-TR-05-1 50000 22+ AR8033-AL1A 25000 23+ PM-8909-0-152NSP-TR-01-0-02 50000 22+ AR8035-AL1A 45000 22+ WTR-4905-1-60WLNSP-TR-01-1 50000 22+ AR8031-AL1B 15000 22+ If you have other MPN requirements, please let me know and I will check the latest inventory status for you. We also recycle Qualcomm's excess inventory to help you solve the depreciation risk faced by electronic components Best Secure your updates and feature insights at . Continue Product News Wish to step back? Quickly hit Control Contact Settings.

2 months, 3 weeks

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[PATCH] arm64: dts: apple: t8012-j132: Include touchbar framebuffer node

by Nick Chan

Apple T2 MacBookPro15,2 (j132) has a touchbar so include the framebuffer node. Fixes: 4efbcb623e9bc ("arm64: dts: apple: Add T2 devices") Signed-off-by: Nick Chan <towinchenmi(a)gmail.com> --- arch/arm64/boot/dts/apple/t8012-j132.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/apple/t8012-j132.dts b/arch/arm64/boot/dts/apple/t8012-j132.dts index 778a69be18dd81ab49076fb39ca4bc82f551e40f..7dcac51703ff60e0a6ef0929572a70adb65b580f 100644 --- a/arch/arm64/boot/dts/apple/t8012-j132.dts +++ b/arch/arm64/boot/dts/apple/t8012-j132.dts @@ -7,6 +7,7 @@ /dts-v1/; #include "t8012-jxxx.dtsi" +#include "t8012-touchbar.dtsi" / { model = "Apple T2 MacBookPro15,2 (j132)"; --- base-commit: e04c78d86a9699d136910cfc0bdcf01087e3267e change-id: 20250620-j132-fb-d7d5687d370d Best regards, -- Nick Chan <towinchenmi(a)gmail.com>

2 months, 3 weeks

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[PATCH] Revert "drm/amd/display: more liberal vmin/vmax update for freesync"

by Aurabindo Pillai

This reverts commit 219898d29c438d8ec34a5560fac4ea8f6b8d4f20 since it causes regressions on certain configs. Revert until the issue can be isolated and debugged. Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4238 Signed-off-by: Aurabindo Pillai <aurabindo.pillai(a)amd.com> Acked-by: Alex Deucher <alexander.deucher(a)amd.com> --- .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 16 +++++----------- 1 file changed, 5 insertions(+), 11 deletions(-) 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 90889f6867aad..9f2e26336cccf 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -676,21 +676,15 @@ static void dm_crtc_high_irq(void *interrupt_params) spin_lock_irqsave(&adev_to_drm(adev)->event_lock, flags); if (acrtc->dm_irq_params.stream && - acrtc->dm_irq_params.vrr_params.supported) { - bool replay_en = acrtc->dm_irq_params.stream->link->replay_settings.replay_feature_enabled; - bool psr_en = acrtc->dm_irq_params.stream->link->psr_settings.psr_feature_enabled; - bool fs_active_var_en = acrtc->dm_irq_params.freesync_config.state == VRR_STATE_ACTIVE_VARIABLE; - + acrtc->dm_irq_params.vrr_params.supported && + acrtc->dm_irq_params.freesync_config.state == + VRR_STATE_ACTIVE_VARIABLE) { mod_freesync_handle_v_update(adev->dm.freesync_module, acrtc->dm_irq_params.stream, &acrtc->dm_irq_params.vrr_params); - /* update vmin_vmax only if freesync is enabled, or only if PSR and REPLAY are disabled */ - if (fs_active_var_en || (!fs_active_var_en && !replay_en && !psr_en)) { - dc_stream_adjust_vmin_vmax(adev->dm.dc, - acrtc->dm_irq_params.stream, - &acrtc->dm_irq_params.vrr_params.adjust); - } + dc_stream_adjust_vmin_vmax(adev->dm.dc, acrtc->dm_irq_params.stream, + &acrtc->dm_irq_params.vrr_params.adjust); } /* -- 2.49.0

2 months, 3 weeks

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FAILED: patch "[PATCH] accel/ivpu: Fix warning in ivpu_gem_bo_free()" 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 91274fd4ed9ba110b02c53d71d2778b7d13b49ac # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062049-disperser-manager-db76@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 91274fd4ed9ba110b02c53d71d2778b7d13b49ac Mon Sep 17 00:00:00 2001 From: Jacek Lawrynowicz <jacek.lawrynowicz(a)linux.intel.com> Date: Wed, 28 May 2025 19:12:20 +0200 Subject: [PATCH] accel/ivpu: Fix warning in ivpu_gem_bo_free() Don't WARN if imported buffers are in use in ivpu_gem_bo_free() as they can be indeed used in the original context/driver. Fixes: 647371a6609d ("accel/ivpu: Add GEM buffer object management") Cc: stable(a)vger.kernel.org # v6.3 Reviewed-by: Jeff Hugo <jeff.hugo(a)oss.qualcomm.com> Reviewed-by: Lizhi Hou <lizhi.hou(a)amd.com> Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz(a)linux.intel.com> Link: https://lore.kernel.org/r/20250528171220.513225-1-jacek.lawrynowicz@linux.i… diff --git a/drivers/accel/ivpu/ivpu_gem.c b/drivers/accel/ivpu/ivpu_gem.c index 5908268ca45e..248bfebeaa22 100644 --- a/drivers/accel/ivpu/ivpu_gem.c +++ b/drivers/accel/ivpu/ivpu_gem.c @@ -285,7 +285,8 @@ static void ivpu_gem_bo_free(struct drm_gem_object *obj) list_del(&bo->bo_list_node); mutex_unlock(&vdev->bo_list_lock); - drm_WARN_ON(&vdev->drm, !dma_resv_test_signaled(obj->resv, DMA_RESV_USAGE_READ)); + drm_WARN_ON(&vdev->drm, !drm_gem_is_imported(&bo->base.base) && + !dma_resv_test_signaled(obj->resv, DMA_RESV_USAGE_READ)); drm_WARN_ON(&vdev->drm, ivpu_bo_size(bo) == 0); drm_WARN_ON(&vdev->drm, bo->base.vaddr);

2 months, 3 weeks

1
0
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FAILED: patch "[PATCH] accel/ivpu: Trigger device recovery on engine reset/resume" 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 a47e36dc5d90dc664cac87304c17d50f1595d634 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062031-unrented-debtless-6980@gregkh' --subject-prefix 'PATCH 6.12.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From a47e36dc5d90dc664cac87304c17d50f1595d634 Mon Sep 17 00:00:00 2001 From: Karol Wachowski <karol.wachowski(a)intel.com> Date: Wed, 28 May 2025 17:42:53 +0200 Subject: [PATCH] accel/ivpu: Trigger device recovery on engine reset/resume failure Trigger full device recovery when the driver fails to restore device state via engine reset and resume operations. This is necessary because, even if submissions from a faulty context are blocked, the NPU may still process previously submitted faulty jobs if the engine reset fails to abort them. Such jobs can continue to generate faults and occupy device resources. When engine reset is ineffective, the only way to recover is to perform a full device recovery. Fixes: dad945c27a42 ("accel/ivpu: Add handling of VPU_JSM_STATUS_MVNCI_CONTEXT_VIOLATION_HW") Cc: stable(a)vger.kernel.org # v6.15+ Signed-off-by: Karol Wachowski <karol.wachowski(a)intel.com> Reviewed-by: Lizhi Hou <lizhi.hou(a)amd.com> Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz(a)linux.intel.com> Link: https://lore.kernel.org/r/20250528154253.500556-1-jacek.lawrynowicz@linux.i… diff --git a/drivers/accel/ivpu/ivpu_job.c b/drivers/accel/ivpu/ivpu_job.c index 1c8e283ad985..fae8351aa330 100644 --- a/drivers/accel/ivpu/ivpu_job.c +++ b/drivers/accel/ivpu/ivpu_job.c @@ -986,7 +986,8 @@ void ivpu_context_abort_work_fn(struct work_struct *work) return; if (vdev->fw->sched_mode == VPU_SCHEDULING_MODE_HW) - ivpu_jsm_reset_engine(vdev, 0); + if (ivpu_jsm_reset_engine(vdev, 0)) + return; mutex_lock(&vdev->context_list_lock); xa_for_each(&vdev->context_xa, ctx_id, file_priv) { @@ -1009,7 +1010,8 @@ void ivpu_context_abort_work_fn(struct work_struct *work) if (vdev->fw->sched_mode != VPU_SCHEDULING_MODE_HW) goto runtime_put; - ivpu_jsm_hws_resume_engine(vdev, 0); + if (ivpu_jsm_hws_resume_engine(vdev, 0)) + return; /* * In hardware scheduling mode NPU already has stopped processing jobs * and won't send us any further notifications, thus we have to free job related resources diff --git a/drivers/accel/ivpu/ivpu_jsm_msg.c b/drivers/accel/ivpu/ivpu_jsm_msg.c index 219ab8afefab..0256b2dfefc1 100644 --- a/drivers/accel/ivpu/ivpu_jsm_msg.c +++ b/drivers/accel/ivpu/ivpu_jsm_msg.c @@ -7,6 +7,7 @@ #include "ivpu_hw.h" #include "ivpu_ipc.h" #include "ivpu_jsm_msg.h" +#include "ivpu_pm.h" #include "vpu_jsm_api.h" const char *ivpu_jsm_msg_type_to_str(enum vpu_ipc_msg_type type) @@ -163,8 +164,10 @@ int ivpu_jsm_reset_engine(struct ivpu_device *vdev, u32 engine) ret = ivpu_ipc_send_receive(vdev, &req, VPU_JSM_MSG_ENGINE_RESET_DONE, &resp, VPU_IPC_CHAN_ASYNC_CMD, vdev->timeout.jsm); - if (ret) + if (ret) { ivpu_err_ratelimited(vdev, "Failed to reset engine %d: %d\n", engine, ret); + ivpu_pm_trigger_recovery(vdev, "Engine reset failed"); + } return ret; } @@ -354,8 +357,10 @@ int ivpu_jsm_hws_resume_engine(struct ivpu_device *vdev, u32 engine) ret = ivpu_ipc_send_receive(vdev, &req, VPU_JSM_MSG_HWS_RESUME_ENGINE_DONE, &resp, VPU_IPC_CHAN_ASYNC_CMD, vdev->timeout.jsm); - if (ret) + if (ret) { ivpu_err_ratelimited(vdev, "Failed to resume engine %d: %d\n", engine, ret); + ivpu_pm_trigger_recovery(vdev, "Engine resume failed"); + } return ret; }

2 months, 3 weeks

1
0
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FAILED: patch "[PATCH] iio: accel: fxls8962af: Fix temperature calculation" 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 16038474e3a0263572f36326ef85057aaf341814 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062053-deafness-gleeful-24ae@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 16038474e3a0263572f36326ef85057aaf341814 Mon Sep 17 00:00:00 2001 From: Sean Nyekjaer <sean(a)geanix.com> Date: Mon, 5 May 2025 21:20:07 +0200 Subject: [PATCH] iio: accel: fxls8962af: Fix temperature calculation According to spec temperature should be returned in milli degrees Celsius. Add in_temp_scale to calculate from Celsius to milli Celsius. Fixes: a3e0b51884ee ("iio: accel: add support for FXLS8962AF/FXLS8964AF accelerometers") Cc: stable(a)vger.kernel.org Reviewed-by: Marcelo Schmitt <marcelo.schmitt1(a)gmail.com> Signed-off-by: Sean Nyekjaer <sean(a)geanix.com> Link: https://patch.msgid.link/20250505-fxls-v4-1-a38652e21738@geanix.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> diff --git a/drivers/iio/accel/fxls8962af-core.c b/drivers/iio/accel/fxls8962af-core.c index bf1d3923a181..5f5e917f7aa5 100644 --- a/drivers/iio/accel/fxls8962af-core.c +++ b/drivers/iio/accel/fxls8962af-core.c @@ -23,6 +23,7 @@ #include <linux/regulator/consumer.h> #include <linux/regmap.h> #include <linux/types.h> +#include <linux/units.h> #include <linux/iio/buffer.h> #include <linux/iio/events.h> @@ -439,8 +440,16 @@ static int fxls8962af_read_raw(struct iio_dev *indio_dev, *val = FXLS8962AF_TEMP_CENTER_VAL; return IIO_VAL_INT; case IIO_CHAN_INFO_SCALE: - *val = 0; - return fxls8962af_read_full_scale(data, val2); + switch (chan->type) { + case IIO_TEMP: + *val = MILLIDEGREE_PER_DEGREE; + return IIO_VAL_INT; + case IIO_ACCEL: + *val = 0; + return fxls8962af_read_full_scale(data, val2); + default: + return -EINVAL; + } case IIO_CHAN_INFO_SAMP_FREQ: return fxls8962af_read_samp_freq(data, val, val2); default: @@ -736,6 +745,7 @@ static const struct iio_event_spec fxls8962af_event[] = { .type = IIO_TEMP, \ .address = FXLS8962AF_TEMP_OUT, \ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \ + BIT(IIO_CHAN_INFO_SCALE) | \ BIT(IIO_CHAN_INFO_OFFSET),\ .scan_index = -1, \ .scan_type = { \

2 months, 3 weeks

1
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FAILED: patch "[PATCH] uio_hv_generic: Align ring size to system page" 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 0315fef2aff9f251ddef8a4b53db9187429c3553 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062028-ability-zigzagged-b1e7@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 0315fef2aff9f251ddef8a4b53db9187429c3553 Mon Sep 17 00:00:00 2001 From: Long Li <longli(a)microsoft.com> Date: Mon, 5 May 2025 17:56:35 -0700 Subject: [PATCH] uio_hv_generic: Align ring size to system page Following the ring header, the ring data should align to system page boundary. Adjust the size if necessary. Cc: stable(a)vger.kernel.org Fixes: 95096f2fbd10 ("uio-hv-generic: new userspace i/o driver for VMBus") Signed-off-by: Long Li <longli(a)microsoft.com> Reviewed-by: Michael Kelley <mhklinux(a)outlook.com> Link: https://lore.kernel.org/r/1746492997-4599-4-git-send-email-longli@linuxonhy… Signed-off-by: Wei Liu <wei.liu(a)kernel.org> Message-ID: <1746492997-4599-4-git-send-email-longli(a)linuxonhyperv.com> diff --git a/drivers/uio/uio_hv_generic.c b/drivers/uio/uio_hv_generic.c index cc3a350dbbd5..aac67a4413ce 100644 --- a/drivers/uio/uio_hv_generic.c +++ b/drivers/uio/uio_hv_generic.c @@ -243,6 +243,9 @@ hv_uio_probe(struct hv_device *dev, if (!ring_size) ring_size = SZ_2M; + /* Adjust ring size if necessary to have it page aligned */ + ring_size = VMBUS_RING_SIZE(ring_size); + pdata = devm_kzalloc(&dev->device, sizeof(*pdata), GFP_KERNEL); if (!pdata) return -ENOMEM;

2 months, 3 weeks

1
0
0 0

FAILED: patch "[PATCH] mm/khugepaged: fix race with folio split/free using temporary" 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 595cf683519ab5a277d258a2251ee8cc7b838d6d # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062000-pond-bobcat-914a@gregkh' --subject-prefix 'PATCH 6.12.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 595cf683519ab5a277d258a2251ee8cc7b838d6d Mon Sep 17 00:00:00 2001 From: Shivank Garg <shivankg(a)amd.com> Date: Mon, 26 May 2025 18:28:18 +0000 Subject: [PATCH] mm/khugepaged: fix race with folio split/free using temporary reference hpage_collapse_scan_file() calls is_refcount_suitable(), which in turn calls folio_mapcount(). folio_mapcount() checks folio_test_large() before proceeding to folio_large_mapcount(), but there is a race window where the folio may get split/freed between these checks, triggering: VM_WARN_ON_FOLIO(!folio_test_large(folio), folio) Take a temporary reference to the folio in hpage_collapse_scan_file(). This stabilizes the folio during refcount check and prevents incorrect large folio detection due to concurrent split/free. Use helper folio_expected_ref_count() + 1 to compare with folio_ref_count() instead of using is_refcount_suitable(). Link: https://lkml.kernel.org/r/20250526182818.37978-1-shivankg@amd.com Fixes: 05c5323b2a34 ("mm: track mapcount of large folios in single value") Signed-off-by: Shivank Garg <shivankg(a)amd.com> Reported-by: syzbot+2b99589e33edbe9475ca(a)syzkaller.appspotmail.com Closes: https://lore.kernel.org/all/6828470d.a70a0220.38f255.000c.GAE@google.com Suggested-by: David Hildenbrand <david(a)redhat.com> Acked-by: David Hildenbrand <david(a)redhat.com> Acked-by: Dev Jain <dev.jain(a)arm.com> Reviewed-by: Baolin Wang <baolin.wang(a)linux.alibaba.com> Cc: Bharata B Rao <bharata(a)amd.com> Cc: Fengwei Yin <fengwei.yin(a)intel.com> Cc: Liam Howlett <liam.howlett(a)oracle.com> Cc: Lorenzo Stoakes <lorenzo.stoakes(a)oracle.com> Cc: Mariano Pache <npache(a)redhat.com> Cc: Ryan Roberts <ryan.roberts(a)arm.com> Cc: Zi Yan <ziy(a)nvidia.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> diff --git a/mm/khugepaged.c b/mm/khugepaged.c index cdf5a581368b..7731a162a1a7 100644 --- a/mm/khugepaged.c +++ b/mm/khugepaged.c @@ -2293,6 +2293,17 @@ static int hpage_collapse_scan_file(struct mm_struct *mm, unsigned long addr, continue; } + if (!folio_try_get(folio)) { + xas_reset(&xas); + continue; + } + + if (unlikely(folio != xas_reload(&xas))) { + folio_put(folio); + xas_reset(&xas); + continue; + } + if (folio_order(folio) == HPAGE_PMD_ORDER && folio->index == start) { /* Maybe PMD-mapped */ @@ -2303,23 +2314,27 @@ static int hpage_collapse_scan_file(struct mm_struct *mm, unsigned long addr, * it's safe to skip LRU and refcount checks before * returning. */ + folio_put(folio); break; } node = folio_nid(folio); if (hpage_collapse_scan_abort(node, cc)) { result = SCAN_SCAN_ABORT; + folio_put(folio); break; } cc->node_load[node]++; if (!folio_test_lru(folio)) { result = SCAN_PAGE_LRU; + folio_put(folio); break; } - if (!is_refcount_suitable(folio)) { + if (folio_expected_ref_count(folio) + 1 != folio_ref_count(folio)) { result = SCAN_PAGE_COUNT; + folio_put(folio); break; } @@ -2331,6 +2346,7 @@ static int hpage_collapse_scan_file(struct mm_struct *mm, unsigned long addr, */ present += folio_nr_pages(folio); + folio_put(folio); if (need_resched()) { xas_pause(&xas);

2 months, 3 weeks

1
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FAILED: patch "[PATCH] cifs: dns resolution is needed only for primary channel" 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 b4f60a053a2534c3e510ba0c1f8727566adf8317 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062001-pueblo-aching-e101@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From b4f60a053a2534c3e510ba0c1f8727566adf8317 Mon Sep 17 00:00:00 2001 From: Shyam Prasad N <sprasad(a)microsoft.com> Date: Mon, 2 Jun 2025 22:37:16 +0530 Subject: [PATCH] cifs: dns resolution is needed only for primary channel When calling cifs_reconnect, before the connection to the server is reestablished, the code today does a DNS resolution and updates server->dstaddr. However, this is not necessary for secondary channels. Secondary channels use the interface list returned by the server to decide which address to connect to. And that happens after tcon is reconnected and server interfaces are requested. Signed-off-by: Shyam Prasad N <sprasad(a)microsoft.com> Cc: stable(a)vger.kernel.org Signed-off-by: Steve French <stfrench(a)microsoft.com> diff --git a/fs/smb/client/connect.c b/fs/smb/client/connect.c index ca1cb01c6ef8..024817d40c5f 100644 --- a/fs/smb/client/connect.c +++ b/fs/smb/client/connect.c @@ -392,7 +392,8 @@ static int __cifs_reconnect(struct TCP_Server_Info *server, try_to_freeze(); cifs_server_lock(server); - if (!cifs_swn_set_server_dstaddr(server)) { + if (!cifs_swn_set_server_dstaddr(server) && + !SERVER_IS_CHAN(server)) { /* resolve the hostname again to make sure that IP address is up-to-date */ rc = reconn_set_ipaddr_from_hostname(server); cifs_dbg(FYI, "%s: reconn_set_ipaddr_from_hostname: rc=%d\n", __func__, rc);

2 months, 3 weeks

1
0
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FAILED: patch "[PATCH] uio_hv_generic: Align ring size to system page" 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 0315fef2aff9f251ddef8a4b53db9187429c3553 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062012-accompany-phrase-7f66@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 0315fef2aff9f251ddef8a4b53db9187429c3553 Mon Sep 17 00:00:00 2001 From: Long Li <longli(a)microsoft.com> Date: Mon, 5 May 2025 17:56:35 -0700 Subject: [PATCH] uio_hv_generic: Align ring size to system page Following the ring header, the ring data should align to system page boundary. Adjust the size if necessary. Cc: stable(a)vger.kernel.org Fixes: 95096f2fbd10 ("uio-hv-generic: new userspace i/o driver for VMBus") Signed-off-by: Long Li <longli(a)microsoft.com> Reviewed-by: Michael Kelley <mhklinux(a)outlook.com> Link: https://lore.kernel.org/r/1746492997-4599-4-git-send-email-longli@linuxonhy… Signed-off-by: Wei Liu <wei.liu(a)kernel.org> Message-ID: <1746492997-4599-4-git-send-email-longli(a)linuxonhyperv.com> diff --git a/drivers/uio/uio_hv_generic.c b/drivers/uio/uio_hv_generic.c index cc3a350dbbd5..aac67a4413ce 100644 --- a/drivers/uio/uio_hv_generic.c +++ b/drivers/uio/uio_hv_generic.c @@ -243,6 +243,9 @@ hv_uio_probe(struct hv_device *dev, if (!ring_size) ring_size = SZ_2M; + /* Adjust ring size if necessary to have it page aligned */ + ring_size = VMBUS_RING_SIZE(ring_size); + pdata = devm_kzalloc(&dev->device, sizeof(*pdata), GFP_KERNEL); if (!pdata) return -ENOMEM;

2 months, 3 weeks

1
0
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FAILED: patch "[PATCH] uio_hv_generic: Align ring size to system page" failed to apply to 5.6.1-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.6.1-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-5.6.1.y git checkout FETCH_HEAD git cherry-pick -x 0315fef2aff9f251ddef8a4b53db9187429c3553 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062009-reward-founding-f804@gregkh' --subject-prefix 'PATCH 5.6.1.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 0315fef2aff9f251ddef8a4b53db9187429c3553 Mon Sep 17 00:00:00 2001 From: Long Li <longli(a)microsoft.com> Date: Mon, 5 May 2025 17:56:35 -0700 Subject: [PATCH] uio_hv_generic: Align ring size to system page Following the ring header, the ring data should align to system page boundary. Adjust the size if necessary. Cc: stable(a)vger.kernel.org Fixes: 95096f2fbd10 ("uio-hv-generic: new userspace i/o driver for VMBus") Signed-off-by: Long Li <longli(a)microsoft.com> Reviewed-by: Michael Kelley <mhklinux(a)outlook.com> Link: https://lore.kernel.org/r/1746492997-4599-4-git-send-email-longli@linuxonhy… Signed-off-by: Wei Liu <wei.liu(a)kernel.org> Message-ID: <1746492997-4599-4-git-send-email-longli(a)linuxonhyperv.com> diff --git a/drivers/uio/uio_hv_generic.c b/drivers/uio/uio_hv_generic.c index cc3a350dbbd5..aac67a4413ce 100644 --- a/drivers/uio/uio_hv_generic.c +++ b/drivers/uio/uio_hv_generic.c @@ -243,6 +243,9 @@ hv_uio_probe(struct hv_device *dev, if (!ring_size) ring_size = SZ_2M; + /* Adjust ring size if necessary to have it page aligned */ + ring_size = VMBUS_RING_SIZE(ring_size); + pdata = devm_kzalloc(&dev->device, sizeof(*pdata), GFP_KERNEL); if (!pdata) return -ENOMEM;

2 months, 3 weeks

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FAILED: patch "[PATCH] uio_hv_generic: Align ring size to system page" 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 0315fef2aff9f251ddef8a4b53db9187429c3553 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062042-matter-tragedy-57ab@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 0315fef2aff9f251ddef8a4b53db9187429c3553 Mon Sep 17 00:00:00 2001 From: Long Li <longli(a)microsoft.com> Date: Mon, 5 May 2025 17:56:35 -0700 Subject: [PATCH] uio_hv_generic: Align ring size to system page Following the ring header, the ring data should align to system page boundary. Adjust the size if necessary. Cc: stable(a)vger.kernel.org Fixes: 95096f2fbd10 ("uio-hv-generic: new userspace i/o driver for VMBus") Signed-off-by: Long Li <longli(a)microsoft.com> Reviewed-by: Michael Kelley <mhklinux(a)outlook.com> Link: https://lore.kernel.org/r/1746492997-4599-4-git-send-email-longli@linuxonhy… Signed-off-by: Wei Liu <wei.liu(a)kernel.org> Message-ID: <1746492997-4599-4-git-send-email-longli(a)linuxonhyperv.com> diff --git a/drivers/uio/uio_hv_generic.c b/drivers/uio/uio_hv_generic.c index cc3a350dbbd5..aac67a4413ce 100644 --- a/drivers/uio/uio_hv_generic.c +++ b/drivers/uio/uio_hv_generic.c @@ -243,6 +243,9 @@ hv_uio_probe(struct hv_device *dev, if (!ring_size) ring_size = SZ_2M; + /* Adjust ring size if necessary to have it page aligned */ + ring_size = VMBUS_RING_SIZE(ring_size); + pdata = devm_kzalloc(&dev->device, sizeof(*pdata), GFP_KERNEL); if (!pdata) return -ENOMEM;

2 months, 3 weeks

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FAILED: patch "[PATCH] PCI: apple: Set only available ports up" 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 751bec089c4eed486578994abd2c5395f08d0302 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062029-moody-stinking-a43c@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 751bec089c4eed486578994abd2c5395f08d0302 Mon Sep 17 00:00:00 2001 From: Janne Grunau <j(a)jannau.net> Date: Tue, 1 Apr 2025 10:17:01 +0100 Subject: [PATCH] PCI: apple: Set only available ports up Iterating over disabled ports results in of_irq_parse_raw() parsing the wrong "interrupt-map" entries, as it takes the status of the node into account. This became apparent after disabling unused PCIe ports in the Apple Silicon device trees instead of deleting them. Switching from for_each_child_of_node_scoped() to for_each_available_child_of_node_scoped() solves this issue. Fixes: 1e33888fbe44 ("PCI: apple: Add initial hardware bring-up") Fixes: a0189fdfb73d ("arm64: dts: apple: t8103: Disable unused PCIe ports") Signed-off-by: Janne Grunau <j(a)jannau.net> Signed-off-by: Alyssa Rosenzweig <alyssa(a)rosenzweig.io> Signed-off-by: Marc Zyngier <maz(a)kernel.org> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam(a)linaro.org> Tested-by: Janne Grunau <j(a)jannau.net> Reviewed-by: Rob Herring (Arm) <robh(a)kernel.org> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam(a)linaro.org> Acked-by: Alyssa Rosenzweig <alyssa(a)rosenzweig.io> Cc: stable(a)vger.kernel.org Link: https://lore.kernel.org/asahi/20230214-apple_dts_pcie_disable_unused-v1-0-5… Link: https://lore.kernel.org/asahi/1ea2107a-bb86-8c22-0bbc-82c453ab08ce@linaro.o… Link: https://patch.msgid.link/20250401091713.2765724-2-maz@kernel.org diff --git a/drivers/pci/controller/pcie-apple.c b/drivers/pci/controller/pcie-apple.c index 18e11b9a7f46..996cef8a2e17 100644 --- a/drivers/pci/controller/pcie-apple.c +++ b/drivers/pci/controller/pcie-apple.c @@ -754,7 +754,7 @@ static int apple_pcie_init(struct pci_config_window *cfg) if (ret) return ret; - for_each_child_of_node_scoped(dev->of_node, of_port) { + for_each_available_child_of_node_scoped(dev->of_node, of_port) { ret = apple_pcie_setup_port(pcie, of_port); if (ret) { dev_err(pcie->dev, "Port %pOF setup fail: %d\n", of_port, ret);

2 months, 3 weeks

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FAILED: patch "[PATCH] PCI: apple: Set only available ports up" 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 751bec089c4eed486578994abd2c5395f08d0302 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062028-mushy-winner-bd0a@gregkh' --subject-prefix 'PATCH 6.12.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 751bec089c4eed486578994abd2c5395f08d0302 Mon Sep 17 00:00:00 2001 From: Janne Grunau <j(a)jannau.net> Date: Tue, 1 Apr 2025 10:17:01 +0100 Subject: [PATCH] PCI: apple: Set only available ports up Iterating over disabled ports results in of_irq_parse_raw() parsing the wrong "interrupt-map" entries, as it takes the status of the node into account. This became apparent after disabling unused PCIe ports in the Apple Silicon device trees instead of deleting them. Switching from for_each_child_of_node_scoped() to for_each_available_child_of_node_scoped() solves this issue. Fixes: 1e33888fbe44 ("PCI: apple: Add initial hardware bring-up") Fixes: a0189fdfb73d ("arm64: dts: apple: t8103: Disable unused PCIe ports") Signed-off-by: Janne Grunau <j(a)jannau.net> Signed-off-by: Alyssa Rosenzweig <alyssa(a)rosenzweig.io> Signed-off-by: Marc Zyngier <maz(a)kernel.org> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam(a)linaro.org> Tested-by: Janne Grunau <j(a)jannau.net> Reviewed-by: Rob Herring (Arm) <robh(a)kernel.org> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam(a)linaro.org> Acked-by: Alyssa Rosenzweig <alyssa(a)rosenzweig.io> Cc: stable(a)vger.kernel.org Link: https://lore.kernel.org/asahi/20230214-apple_dts_pcie_disable_unused-v1-0-5… Link: https://lore.kernel.org/asahi/1ea2107a-bb86-8c22-0bbc-82c453ab08ce@linaro.o… Link: https://patch.msgid.link/20250401091713.2765724-2-maz@kernel.org diff --git a/drivers/pci/controller/pcie-apple.c b/drivers/pci/controller/pcie-apple.c index 18e11b9a7f46..996cef8a2e17 100644 --- a/drivers/pci/controller/pcie-apple.c +++ b/drivers/pci/controller/pcie-apple.c @@ -754,7 +754,7 @@ static int apple_pcie_init(struct pci_config_window *cfg) if (ret) return ret; - for_each_child_of_node_scoped(dev->of_node, of_port) { + for_each_available_child_of_node_scoped(dev->of_node, of_port) { ret = apple_pcie_setup_port(pcie, of_port); if (ret) { dev_err(pcie->dev, "Port %pOF setup fail: %d\n", of_port, ret);

2 months, 3 weeks

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FAILED: patch "[PATCH] PCI: apple: Set only available ports up" 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 751bec089c4eed486578994abd2c5395f08d0302 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062028-paddling-tribunal-1ecc@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 751bec089c4eed486578994abd2c5395f08d0302 Mon Sep 17 00:00:00 2001 From: Janne Grunau <j(a)jannau.net> Date: Tue, 1 Apr 2025 10:17:01 +0100 Subject: [PATCH] PCI: apple: Set only available ports up Iterating over disabled ports results in of_irq_parse_raw() parsing the wrong "interrupt-map" entries, as it takes the status of the node into account. This became apparent after disabling unused PCIe ports in the Apple Silicon device trees instead of deleting them. Switching from for_each_child_of_node_scoped() to for_each_available_child_of_node_scoped() solves this issue. Fixes: 1e33888fbe44 ("PCI: apple: Add initial hardware bring-up") Fixes: a0189fdfb73d ("arm64: dts: apple: t8103: Disable unused PCIe ports") Signed-off-by: Janne Grunau <j(a)jannau.net> Signed-off-by: Alyssa Rosenzweig <alyssa(a)rosenzweig.io> Signed-off-by: Marc Zyngier <maz(a)kernel.org> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam(a)linaro.org> Tested-by: Janne Grunau <j(a)jannau.net> Reviewed-by: Rob Herring (Arm) <robh(a)kernel.org> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam(a)linaro.org> Acked-by: Alyssa Rosenzweig <alyssa(a)rosenzweig.io> Cc: stable(a)vger.kernel.org Link: https://lore.kernel.org/asahi/20230214-apple_dts_pcie_disable_unused-v1-0-5… Link: https://lore.kernel.org/asahi/1ea2107a-bb86-8c22-0bbc-82c453ab08ce@linaro.o… Link: https://patch.msgid.link/20250401091713.2765724-2-maz@kernel.org diff --git a/drivers/pci/controller/pcie-apple.c b/drivers/pci/controller/pcie-apple.c index 18e11b9a7f46..996cef8a2e17 100644 --- a/drivers/pci/controller/pcie-apple.c +++ b/drivers/pci/controller/pcie-apple.c @@ -754,7 +754,7 @@ static int apple_pcie_init(struct pci_config_window *cfg) if (ret) return ret; - for_each_child_of_node_scoped(dev->of_node, of_port) { + for_each_available_child_of_node_scoped(dev->of_node, of_port) { ret = apple_pcie_setup_port(pcie, of_port); if (ret) { dev_err(pcie->dev, "Port %pOF setup fail: %d\n", of_port, ret);

2 months, 3 weeks

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FAILED: patch "[PATCH] PCI: dw-rockchip: Remove PCIE_L0S_ENTRY check from" 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 7d9b5d6115532cf90a789ed6afd3f4c70ebbd827 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025062004-mystified-skimmed-94c0@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 7d9b5d6115532cf90a789ed6afd3f4c70ebbd827 Mon Sep 17 00:00:00 2001 From: Shawn Lin <shawn.lin(a)rock-chips.com> Date: Thu, 17 Apr 2025 08:35:09 +0800 Subject: [PATCH] PCI: dw-rockchip: Remove PCIE_L0S_ENTRY check from rockchip_pcie_link_up() rockchip_pcie_link_up() currently has two issues: 1. Value 0x11 of PCIE_L0S_ENTRY corresponds to L0 state, not L0S. So the naming is wrong from the very beginning. 2. Checking for value 0x11 treats other states like L0S and L1 as link down, which is wrong. Hence, remove the PCIE_L0S_ENTRY check and also its definition. This allows adding ASPM support in the successive commits. Fixes: 0e898eb8df4e ("PCI: rockchip-dwc: Add Rockchip RK356X host controller driver") Signed-off-by: Shawn Lin <shawn.lin(a)rock-chips.com> [mani: commit message rewording] Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam(a)linaro.org> Reviewed-by: Niklas Cassel <cassel(a)kernel.org> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam(a)linaro.org> Cc: stable(a)vger.kernel.org Link: https://patch.msgid.link/1744850111-236269-1-git-send-email-shawn.lin@rock-… diff --git a/drivers/pci/controller/dwc/pcie-dw-rockchip.c b/drivers/pci/controller/dwc/pcie-dw-rockchip.c index c624b7ebd118..21dc99c9d95c 100644 --- a/drivers/pci/controller/dwc/pcie-dw-rockchip.c +++ b/drivers/pci/controller/dwc/pcie-dw-rockchip.c @@ -44,7 +44,6 @@ #define PCIE_LINKUP (PCIE_SMLH_LINKUP | PCIE_RDLH_LINKUP) #define PCIE_RDLH_LINK_UP_CHGED BIT(1) #define PCIE_LINK_REQ_RST_NOT_INT BIT(2) -#define PCIE_L0S_ENTRY 0x11 #define PCIE_CLIENT_GENERAL_CONTROL 0x0 #define PCIE_CLIENT_INTR_STATUS_LEGACY 0x8 #define PCIE_CLIENT_INTR_MASK_LEGACY 0x1c @@ -177,8 +176,7 @@ static int rockchip_pcie_link_up(struct dw_pcie *pci) struct rockchip_pcie *rockchip = to_rockchip_pcie(pci); u32 val = rockchip_pcie_get_ltssm(rockchip); - if ((val & PCIE_LINKUP) == PCIE_LINKUP && - (val & PCIE_LTSSM_STATUS_MASK) == PCIE_L0S_ENTRY) + if ((val & PCIE_LINKUP) == PCIE_LINKUP) return 1; return 0;

2 months, 3 weeks

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