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um: Remove __access_ok_vsyscall()

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FIXADDR_USER_START and FIXADDR_USER_END are now always zero.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Link: https://patch.msgid.link/20251028-uml-remove-32bit-pseudo-vdso-v1-8-e930063eff5f@weissschuh.net
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Thomas Weißschuh
2025-10-28 10:15:43 +01:00
committed by Johannes Berg
parent 880f615bf9
commit f20e32ffda
1 changed files with 1 additions and 7 deletions
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8
arch/um/include/asm/uaccess.h
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@@ -15,10 +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))
#define __addr_range_nowrap(addr, size) \
((unsigned long) (addr) <= ((unsigned long) (addr) + (size)))
@@ -39,9 +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) \