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authorLinus Torvalds <torvalds@linux-foundation.org>2025-12-05 16:30:56 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2025-12-05 16:30:56 -0800
commit399ead3a6d76cbdd29a716660db5c84a314dab70 (patch)
tree21fabb627af50846eebd0aed52da7d65953b6221 /arch/um/include/asm/uaccess.h
parent07025b51c1149951d64804c73014499bb3564dca (diff)
parenta3209bb94b36351f11e0d9e72ac44e5dd777a069 (diff)
Merge tag 'uml-for-linux-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/uml/linux
Pull UML updates from Johannes Berg: "Apart from the usual small churn, we have - initial SMP support (only kernel) - major vDSO cleanups (and fixes for 32-bit)" * tag 'uml-for-linux-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/uml/linux: (33 commits) um: Disable KASAN_INLINE when STATIC_LINK is selected um: Don't rename vmap to kernel_vmap um: drivers: virtio: use string choices helper um: Always set up AT_HWCAP and AT_PLATFORM x86/um: Remove FIXADDR_USER_START and FIXADDR_USE_END um: Remove __access_ok_vsyscall() um: Remove redundant range check from __access_ok_vsyscall() um: Remove fixaddr_user_init() x86/um: Drop gate area handling x86/um: Do not inherit vDSO from host um: Split out default elf_aux_hwcap x86/um: Move ELF_PLATFORM fallback to x86-specific code um: Split out default elf_aux_platform um: Avoid circular dependency on asm-offsets in pgtable.h um: Enable SMP support on x86 asm-generic: percpu: Add assembly guard um: vdso: Remove getcpu support on x86 um: Add initial SMP support um: Define timers on a per-CPU basis um: Determine sleep based on need_resched() ...
Diffstat (limited to 'arch/um/include/asm/uaccess.h')
-rw-r--r--arch/um/include/asm/uaccess.h9
1 files changed, 1 insertions, 8 deletions
diff --git a/arch/um/include/asm/uaccess.h b/arch/um/include/asm/uaccess.h
index 1c6e0ae41b0c..0df9ea4abda8 100644
--- a/arch/um/include/asm/uaccess.h
+++ b/arch/um/include/asm/uaccess.h
@@ -15,11 +15,6 @@
(((unsigned long) (addr) < TASK_SIZE) && \
(((unsigned long) (addr) + (size)) < TASK_SIZE))
-#define __access_ok_vsyscall(addr, size) \
- (((unsigned long) (addr) >= FIXADDR_USER_START) && \
- ((unsigned long) (addr) + (size) <= FIXADDR_USER_END) && \
- ((unsigned long) (addr) + (size) >= (unsigned long)(addr)))
-
#define __addr_range_nowrap(addr, size) \
((unsigned long) (addr) <= ((unsigned long) (addr) + (size)))
@@ -40,9 +35,7 @@ static inline int __access_ok(const void __user *ptr, unsigned long size);
static inline int __access_ok(const void __user *ptr, unsigned long size)
{
unsigned long addr = (unsigned long)ptr;
- return __addr_range_nowrap(addr, size) &&
- (__under_task_size(addr, size) ||
- __access_ok_vsyscall(addr, size));
+ return __addr_range_nowrap(addr, size) && __under_task_size(addr, size);
}
#define __get_kernel_nofault(dst, src, type, err_label) \