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| author | Petr Mladek <pmladek@suse.com> | 2021-11-02 10:39:27 +0100 |
|---|---|---|
| committer | Petr Mladek <pmladek@suse.com> | 2021-11-02 10:39:27 +0100 |
| commit | 40e64a88dadcfa168914065baf7f035de957bbe0 (patch) | |
| tree | 06c8c4a9e6c1b478aa6851794c6a33bec1ce6ec4 /arch/x86/um/shared/sysdep/stub_32.h | |
| parent | 24a1dffbecafeb00d8830985eb7a318e37aabc4e (diff) | |
| parent | 6a7ca80f4033c9cf3003625b2ef8b497f4ec44da (diff) | |
| download | linux-40e64a88dadcfa168914065baf7f035de957bbe0.tar.gz linux-40e64a88dadcfa168914065baf7f035de957bbe0.tar.bz2 linux-40e64a88dadcfa168914065baf7f035de957bbe0.zip | |
Merge branch 'for-5.16-vsprintf-pgp' into for-linus
Diffstat (limited to 'arch/x86/um/shared/sysdep/stub_32.h')
| -rw-r--r-- | arch/x86/um/shared/sysdep/stub_32.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/x86/um/shared/sysdep/stub_32.h b/arch/x86/um/shared/sysdep/stub_32.h index b95db9daf0e8..4c6c2be0c899 100644 --- a/arch/x86/um/shared/sysdep/stub_32.h +++ b/arch/x86/um/shared/sysdep/stub_32.h @@ -101,4 +101,16 @@ static inline void remap_stack_and_trap(void) "memory"); } +static __always_inline void *get_stub_page(void) +{ + unsigned long ret; + + asm volatile ( + "movl %%esp,%0 ;" + "andl %1,%0" + : "=a" (ret) + : "g" (~(UM_KERN_PAGE_SIZE - 1))); + + return (void *)ret; +} #endif |