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FAILED: patch "[PATCH] parisc: Revise __get_user() to probe user read access" 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 89f686a0fb6e473a876a9a60a13aec67a62b9a7e # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025082155-mocker-overripe-4212@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 89f686a0fb6e473a876a9a60a13aec67a62b9a7e Mon Sep 17 00:00:00 2001 From: John David Anglin <dave.anglin(a)bell.net> Date: Fri, 25 Jul 2025 13:51:32 -0400 Subject: [PATCH] parisc: Revise __get_user() to probe user read access Because of the way read access support is implemented, read access interruptions are only triggered at privilege levels 2 and 3. The kernel executes at privilege level 0, so __get_user() never triggers a read access interruption (code 26). Thus, it is currently possible for user code to access a read protected address via a system call. Fix this by probing read access rights at privilege level 3 (PRIV_USER) and setting __gu_err to -EFAULT (-14) if access isn't allowed. Note the cmpiclr instruction does a 32-bit compare because COND macro doesn't work inside asm. Signed-off-by: John David Anglin <dave.anglin(a)bell.net> Signed-off-by: Helge Deller <deller(a)gmx.de> Cc: stable(a)vger.kernel.org # v5.12+ diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h index 88d0ae5769dd..6c531d2c847e 100644 --- a/arch/parisc/include/asm/uaccess.h +++ b/arch/parisc/include/asm/uaccess.h @@ -42,9 +42,24 @@ __gu_err; \ }) -#define __get_user(val, ptr) \ -({ \ - __get_user_internal(SR_USER, val, ptr); \ +#define __probe_user_internal(sr, error, ptr) \ +({ \ + __asm__("\tproberi (%%sr%1,%2),%3,%0\n" \ + "\tcmpiclr,= 1,%0,%0\n" \ + "\tldi %4,%0\n" \ + : "=r"(error) \ + : "i"(sr), "r"(ptr), "i"(PRIV_USER), \ + "i"(-EFAULT)); \ +}) + +#define __get_user(val, ptr) \ +({ \ + register long __gu_err; \ + \ + __gu_err = __get_user_internal(SR_USER, val, ptr); \ + if (likely(!__gu_err)) \ + __probe_user_internal(SR_USER, __gu_err, ptr); \ + __gu_err; \ }) #define __get_user_asm(sr, val, ldx, ptr) \

4 months

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FAILED: patch "[PATCH] parisc: Rename pte_needs_flush() to pte_needs_cache_flush()" 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 52ce9406a9625c4498c4eaa51e7a7ed9dcb9db16 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025082143-crafty-publisher-62f8@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 52ce9406a9625c4498c4eaa51e7a7ed9dcb9db16 Mon Sep 17 00:00:00 2001 From: John David Anglin <dave.anglin(a)bell.net> Date: Mon, 21 Jul 2025 15:56:04 -0400 Subject: [PATCH] parisc: Rename pte_needs_flush() to pte_needs_cache_flush() in cache.c The local name used in cache.c conflicts the declaration in include/asm-generic/tlb.h. Signed-off-by: John David Anglin <dave.anglin(a)bell.net> Signed-off-by: Helge Deller <deller(a)gmx.de> Cc: stable(a)vger.kernel.org # v5.12+ diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c index db531e58d70e..3b37a7e7abe4 100644 --- a/arch/parisc/kernel/cache.c +++ b/arch/parisc/kernel/cache.c @@ -429,7 +429,7 @@ static inline pte_t *get_ptep(struct mm_struct *mm, unsigned long addr) return ptep; } -static inline bool pte_needs_flush(pte_t pte) +static inline bool pte_needs_cache_flush(pte_t pte) { return (pte_val(pte) & (_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_NO_CACHE)) == (_PAGE_PRESENT | _PAGE_ACCESSED); @@ -630,7 +630,7 @@ static void flush_cache_page_if_present(struct vm_area_struct *vma, ptep = get_ptep(vma->vm_mm, vmaddr); if (ptep) { pte = ptep_get(ptep); - needs_flush = pte_needs_flush(pte); + needs_flush = pte_needs_cache_flush(pte); pte_unmap(ptep); } if (needs_flush)

4 months

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FAILED: patch "[PATCH] parisc: Rename pte_needs_flush() to pte_needs_cache_flush()" 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 52ce9406a9625c4498c4eaa51e7a7ed9dcb9db16 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025082143-majesty-gracious-6a56@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 52ce9406a9625c4498c4eaa51e7a7ed9dcb9db16 Mon Sep 17 00:00:00 2001 From: John David Anglin <dave.anglin(a)bell.net> Date: Mon, 21 Jul 2025 15:56:04 -0400 Subject: [PATCH] parisc: Rename pte_needs_flush() to pte_needs_cache_flush() in cache.c The local name used in cache.c conflicts the declaration in include/asm-generic/tlb.h. Signed-off-by: John David Anglin <dave.anglin(a)bell.net> Signed-off-by: Helge Deller <deller(a)gmx.de> Cc: stable(a)vger.kernel.org # v5.12+ diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c index db531e58d70e..3b37a7e7abe4 100644 --- a/arch/parisc/kernel/cache.c +++ b/arch/parisc/kernel/cache.c @@ -429,7 +429,7 @@ static inline pte_t *get_ptep(struct mm_struct *mm, unsigned long addr) return ptep; } -static inline bool pte_needs_flush(pte_t pte) +static inline bool pte_needs_cache_flush(pte_t pte) { return (pte_val(pte) & (_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_NO_CACHE)) == (_PAGE_PRESENT | _PAGE_ACCESSED); @@ -630,7 +630,7 @@ static void flush_cache_page_if_present(struct vm_area_struct *vma, ptep = get_ptep(vma->vm_mm, vmaddr); if (ptep) { pte = ptep_get(ptep); - needs_flush = pte_needs_flush(pte); + needs_flush = pte_needs_cache_flush(pte); pte_unmap(ptep); } if (needs_flush)

4 months

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FAILED: patch "[PATCH] parisc: Makefile: explain that 64BIT requires both 32-bit and" 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 305ab0a748c52eeaeb01d8cff6408842d19e5cb5 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025082125-aqueduct-distant-3557@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 305ab0a748c52eeaeb01d8cff6408842d19e5cb5 Mon Sep 17 00:00:00 2001 From: Randy Dunlap <rdunlap(a)infradead.org> Date: Wed, 25 Jun 2025 00:30:54 -0700 Subject: [PATCH] parisc: Makefile: explain that 64BIT requires both 32-bit and 64-bit compilers For building a 64-bit kernel, both 32-bit and 64-bit VDSO binaries are built, so both 32-bit and 64-bit compilers (and tools) should be in the PATH environment variable. Signed-off-by: Randy Dunlap <rdunlap(a)infradead.org> Cc: "James E.J. Bottomley" <James.Bottomley(a)HansenPartnership.com> Cc: Helge Deller <deller(a)gmx.de> Cc: linux-parisc(a)vger.kernel.org Signed-off-by: Helge Deller <deller(a)gmx.de> Cc: stable(a)vger.kernel.org # v5.3+ diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile index 9cd9aa3d16f2..48ae3c79557a 100644 --- a/arch/parisc/Makefile +++ b/arch/parisc/Makefile @@ -39,7 +39,9 @@ endif export LD_BFD -# Set default 32 bits cross compilers for vdso +# Set default 32 bits cross compilers for vdso. +# This means that for 64BIT, both the 64-bit tools and the 32-bit tools +# need to be in the path. CC_ARCHES_32 = hppa hppa2.0 hppa1.1 CC_SUFFIXES = linux linux-gnu unknown-linux-gnu suse-linux CROSS32_COMPILE := $(call cc-cross-prefix, \

4 months

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FAILED: patch "[PATCH] parisc: Makefile: explain that 64BIT requires both 32-bit and" 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 305ab0a748c52eeaeb01d8cff6408842d19e5cb5 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025082124-regulator-supply-7bbe@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 305ab0a748c52eeaeb01d8cff6408842d19e5cb5 Mon Sep 17 00:00:00 2001 From: Randy Dunlap <rdunlap(a)infradead.org> Date: Wed, 25 Jun 2025 00:30:54 -0700 Subject: [PATCH] parisc: Makefile: explain that 64BIT requires both 32-bit and 64-bit compilers For building a 64-bit kernel, both 32-bit and 64-bit VDSO binaries are built, so both 32-bit and 64-bit compilers (and tools) should be in the PATH environment variable. Signed-off-by: Randy Dunlap <rdunlap(a)infradead.org> Cc: "James E.J. Bottomley" <James.Bottomley(a)HansenPartnership.com> Cc: Helge Deller <deller(a)gmx.de> Cc: linux-parisc(a)vger.kernel.org Signed-off-by: Helge Deller <deller(a)gmx.de> Cc: stable(a)vger.kernel.org # v5.3+ diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile index 9cd9aa3d16f2..48ae3c79557a 100644 --- a/arch/parisc/Makefile +++ b/arch/parisc/Makefile @@ -39,7 +39,9 @@ endif export LD_BFD -# Set default 32 bits cross compilers for vdso +# Set default 32 bits cross compilers for vdso. +# This means that for 64BIT, both the 64-bit tools and the 32-bit tools +# need to be in the path. CC_ARCHES_32 = hppa hppa2.0 hppa1.1 CC_SUFFIXES = linux linux-gnu unknown-linux-gnu suse-linux CROSS32_COMPILE := $(call cc-cross-prefix, \

4 months

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FAILED: patch "[PATCH] parisc: Makefile: explain that 64BIT requires both 32-bit and" 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 305ab0a748c52eeaeb01d8cff6408842d19e5cb5 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025082124-undocked-gamma-38fe@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 305ab0a748c52eeaeb01d8cff6408842d19e5cb5 Mon Sep 17 00:00:00 2001 From: Randy Dunlap <rdunlap(a)infradead.org> Date: Wed, 25 Jun 2025 00:30:54 -0700 Subject: [PATCH] parisc: Makefile: explain that 64BIT requires both 32-bit and 64-bit compilers For building a 64-bit kernel, both 32-bit and 64-bit VDSO binaries are built, so both 32-bit and 64-bit compilers (and tools) should be in the PATH environment variable. Signed-off-by: Randy Dunlap <rdunlap(a)infradead.org> Cc: "James E.J. Bottomley" <James.Bottomley(a)HansenPartnership.com> Cc: Helge Deller <deller(a)gmx.de> Cc: linux-parisc(a)vger.kernel.org Signed-off-by: Helge Deller <deller(a)gmx.de> Cc: stable(a)vger.kernel.org # v5.3+ diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile index 9cd9aa3d16f2..48ae3c79557a 100644 --- a/arch/parisc/Makefile +++ b/arch/parisc/Makefile @@ -39,7 +39,9 @@ endif export LD_BFD -# Set default 32 bits cross compilers for vdso +# Set default 32 bits cross compilers for vdso. +# This means that for 64BIT, both the 64-bit tools and the 32-bit tools +# need to be in the path. CC_ARCHES_32 = hppa hppa2.0 hppa1.1 CC_SUFFIXES = linux linux-gnu unknown-linux-gnu suse-linux CROSS32_COMPILE := $(call cc-cross-prefix, \

4 months

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FAILED: patch "[PATCH] parisc: Drop WARN_ON_ONCE() from flush_cache_vmap" 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 4eab1c27ce1f0e89ab67b01bf1e4e4c75215708a # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025082107-alabaster-monotype-aac8@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 4eab1c27ce1f0e89ab67b01bf1e4e4c75215708a Mon Sep 17 00:00:00 2001 From: John David Anglin <dave.anglin(a)bell.net> Date: Mon, 21 Jul 2025 16:18:41 -0400 Subject: [PATCH] parisc: Drop WARN_ON_ONCE() from flush_cache_vmap I have observed warning to occassionally trigger. Signed-off-by: John David Anglin <dave.anglin(a)bell.net> Signed-off-by: Helge Deller <deller(a)gmx.de> Cc: stable(a)vger.kernel.org # v5.12+ diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c index 3b37a7e7abe4..37ca484cc495 100644 --- a/arch/parisc/kernel/cache.c +++ b/arch/parisc/kernel/cache.c @@ -841,7 +841,7 @@ void flush_cache_vmap(unsigned long start, unsigned long end) } vm = find_vm_area((void *)start); - if (WARN_ON_ONCE(!vm)) { + if (!vm) { flush_cache_all(); return; }

4 months

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FAILED: patch "[PATCH] parisc: Drop WARN_ON_ONCE() from flush_cache_vmap" 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 4eab1c27ce1f0e89ab67b01bf1e4e4c75215708a # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025082107-limeade-bolt-c120@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 4eab1c27ce1f0e89ab67b01bf1e4e4c75215708a Mon Sep 17 00:00:00 2001 From: John David Anglin <dave.anglin(a)bell.net> Date: Mon, 21 Jul 2025 16:18:41 -0400 Subject: [PATCH] parisc: Drop WARN_ON_ONCE() from flush_cache_vmap I have observed warning to occassionally trigger. Signed-off-by: John David Anglin <dave.anglin(a)bell.net> Signed-off-by: Helge Deller <deller(a)gmx.de> Cc: stable(a)vger.kernel.org # v5.12+ diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c index 3b37a7e7abe4..37ca484cc495 100644 --- a/arch/parisc/kernel/cache.c +++ b/arch/parisc/kernel/cache.c @@ -841,7 +841,7 @@ void flush_cache_vmap(unsigned long start, unsigned long end) } vm = find_vm_area((void *)start); - if (WARN_ON_ONCE(!vm)) { + if (!vm) { flush_cache_all(); return; }

4 months

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FAILED: patch "[PATCH] parisc: Define and use set_pte_at()" 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 802e55488bc2cc1ab6423b720255a785ccac42ce # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025082153-reboot-engulf-4d64@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 802e55488bc2cc1ab6423b720255a785ccac42ce Mon Sep 17 00:00:00 2001 From: John David Anglin <dave.anglin(a)bell.net> Date: Mon, 21 Jul 2025 16:06:21 -0400 Subject: [PATCH] parisc: Define and use set_pte_at() When a PTE is changed, we need to flush the PTE. set_pte_at() was lost in the folio update. PA-RISC version is the same as the generic version. Signed-off-by: John David Anglin <dave.anglin(a)bell.net> Signed-off-by: Helge Deller <deller(a)gmx.de> Cc: stable(a)vger.kernel.org # v5.12+ diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h index 1a86a4370b29..2c139a4dbf4b 100644 --- a/arch/parisc/include/asm/pgtable.h +++ b/arch/parisc/include/asm/pgtable.h @@ -276,7 +276,7 @@ extern unsigned long *empty_zero_page; #define pte_none(x) (pte_val(x) == 0) #define pte_present(x) (pte_val(x) & _PAGE_PRESENT) #define pte_user(x) (pte_val(x) & _PAGE_USER) -#define pte_clear(mm, addr, xp) set_pte(xp, __pte(0)) +#define pte_clear(mm, addr, xp) set_pte_at((mm), (addr), (xp), __pte(0)) #define pmd_flag(x) (pmd_val(x) & PxD_FLAG_MASK) #define pmd_address(x) ((unsigned long)(pmd_val(x) &~ PxD_FLAG_MASK) << PxD_VALUE_SHIFT) @@ -392,6 +392,7 @@ static inline void set_ptes(struct mm_struct *mm, unsigned long addr, } } #define set_ptes set_ptes +#define set_pte_at(mm, addr, ptep, pte) set_ptes(mm, addr, ptep, pte, 1) /* Used for deferring calls to flush_dcache_page() */ @@ -456,7 +457,7 @@ static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned if (!pte_young(pte)) { return 0; } - set_pte(ptep, pte_mkold(pte)); + set_pte_at(vma->vm_mm, addr, ptep, pte_mkold(pte)); return 1; } @@ -466,7 +467,7 @@ pte_t ptep_clear_flush(struct vm_area_struct *vma, unsigned long addr, pte_t *pt struct mm_struct; static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { - set_pte(ptep, pte_wrprotect(*ptep)); + set_pte_at(mm, addr, ptep, pte_wrprotect(*ptep)); } #define pte_same(A,B) (pte_val(A) == pte_val(B))

4 months

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FAILED: patch "[PATCH] parisc: Define and use set_pte_at()" 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 802e55488bc2cc1ab6423b720255a785ccac42ce # <resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2025082153-pauper-enlarged-83c3@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 802e55488bc2cc1ab6423b720255a785ccac42ce Mon Sep 17 00:00:00 2001 From: John David Anglin <dave.anglin(a)bell.net> Date: Mon, 21 Jul 2025 16:06:21 -0400 Subject: [PATCH] parisc: Define and use set_pte_at() When a PTE is changed, we need to flush the PTE. set_pte_at() was lost in the folio update. PA-RISC version is the same as the generic version. Signed-off-by: John David Anglin <dave.anglin(a)bell.net> Signed-off-by: Helge Deller <deller(a)gmx.de> Cc: stable(a)vger.kernel.org # v5.12+ diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h index 1a86a4370b29..2c139a4dbf4b 100644 --- a/arch/parisc/include/asm/pgtable.h +++ b/arch/parisc/include/asm/pgtable.h @@ -276,7 +276,7 @@ extern unsigned long *empty_zero_page; #define pte_none(x) (pte_val(x) == 0) #define pte_present(x) (pte_val(x) & _PAGE_PRESENT) #define pte_user(x) (pte_val(x) & _PAGE_USER) -#define pte_clear(mm, addr, xp) set_pte(xp, __pte(0)) +#define pte_clear(mm, addr, xp) set_pte_at((mm), (addr), (xp), __pte(0)) #define pmd_flag(x) (pmd_val(x) & PxD_FLAG_MASK) #define pmd_address(x) ((unsigned long)(pmd_val(x) &~ PxD_FLAG_MASK) << PxD_VALUE_SHIFT) @@ -392,6 +392,7 @@ static inline void set_ptes(struct mm_struct *mm, unsigned long addr, } } #define set_ptes set_ptes +#define set_pte_at(mm, addr, ptep, pte) set_ptes(mm, addr, ptep, pte, 1) /* Used for deferring calls to flush_dcache_page() */ @@ -456,7 +457,7 @@ static inline int ptep_test_and_clear_young(struct vm_area_struct *vma, unsigned if (!pte_young(pte)) { return 0; } - set_pte(ptep, pte_mkold(pte)); + set_pte_at(vma->vm_mm, addr, ptep, pte_mkold(pte)); return 1; } @@ -466,7 +467,7 @@ pte_t ptep_clear_flush(struct vm_area_struct *vma, unsigned long addr, pte_t *pt struct mm_struct; static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long addr, pte_t *ptep) { - set_pte(ptep, pte_wrprotect(*ptep)); + set_pte_at(mm, addr, ptep, pte_wrprotect(*ptep)); } #define pte_same(A,B) (pte_val(A) == pte_val(B))

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