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| author | Ingo Molnar <mingo@kernel.org> | 2015-03-24 19:44:11 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-03-24 20:57:31 +0100 |
| commit | f9d71854b4fe9b22ca199c4676da5a6ece1e5c17 (patch) | |
| tree | e92d316736102ac5486db599e9953dca3cafb895 /arch/x86/include/asm/thread_info.h | |
| parent | 1ddc6f3c60d75a7577dd33bc441e309febe2fc76 (diff) | |
| download | linux-0-day-f9d71854b4fe9b22ca199c4676da5a6ece1e5c17.tar.gz linux-0-day-f9d71854b4fe9b22ca199c4676da5a6ece1e5c17.tar.xz | |
x86/asm/entry/64: Merge the field offset into the THREAD_INFO() macro
Before:
TI_sysenter_return+THREAD_INFO(%rsp,3*8),%r10d
After:
movl THREAD_INFO(TI_sysenter_return, %rsp, 3*8), %r10d
to turn it into a clear thread_info accessor.
No code changed:
md5:
fb4cb2b3ce05d89940ca304efc8ff183 ia32entry.o.before.asm
fb4cb2b3ce05d89940ca304efc8ff183 ia32entry.o.after.asm
e39f2958a5d1300158e276e4f7663263 entry_64.o.before.asm
e39f2958a5d1300158e276e4f7663263 entry_64.o.after.asm
Acked-by: Andy Lutomirski <luto@kernel.org>
Acked-by: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Borislav Petkov <bp@suse.de>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Will Drewry <wad@chromium.org>
Link: http://lkml.kernel.org/r/20150324184411.GB14760@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/include/asm/thread_info.h')
| -rw-r--r-- | arch/x86/include/asm/thread_info.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h index 813dfbb867a7e..224285b674caf 100644 --- a/arch/x86/include/asm/thread_info.h +++ b/arch/x86/include/asm/thread_info.h @@ -222,7 +222,7 @@ static inline unsigned long current_stack_pointer(void) * currently at exactly SIZEOF_PTREGS bytes away from the top of the * stack: * - * mov TI_flags+THREAD_INFO(%rsp, SIZEOF_PTREGS), %eax + * mov THREAD_INFO(TI_flags, %rsp, SIZEOF_PTREGS), %eax * * will translate to: * @@ -230,7 +230,7 @@ static inline unsigned long current_stack_pointer(void) * * which is below the current RSP by almost 16K. */ -#define THREAD_INFO(reg, off) ((off)-THREAD_SIZE)(reg) +#define THREAD_INFO(field, reg, off) ((field)+(off)-THREAD_SIZE)(reg) #endif |