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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-04 08:05:40 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-04 08:05:40 +0300 |
| commit | 4302d506d5f3419109abdd0d6e400ed6e8148209 (patch) | |
| tree | ec8763fead6955c35eef5b284aa924fd660c4f06 /arch/x86/kernel/signal.c | |
| parent | ce4d72fac16a9540452957b526443b6080030bff (diff) | |
| parent | 0e2815de552a638295cfdaf0865e575573bf263e (diff) | |
| download | linux-4302d506d5f3419109abdd0d6e400ed6e8148209.tar.xz | |
Merge branch 'x86-headers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 sigcontext header cleanups from Ingo Molnar:
"This series reorganizes and cleans up various aspects of the main
sigcontext UAPI headers, such as unifying the data structures and
updating/adding lots of comments to explain all the ABI details and
quirks. The headers can now also be built in user-space standalone"
* 'x86-headers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/headers: Clean up too long lines
x86/headers: Remove <asm/sigcontext.h> references on the kernel side
x86/headers: Remove direct sigcontext32.h uses
x86/headers: Convert sigcontext_ia32 uses to sigcontext_32
x86/headers: Unify 'struct sigcontext_ia32' and 'struct sigcontext_32'
x86/headers: Make sigcontext pointers bit independent
x86/headers: Move the 'struct sigcontext' definitions into the UAPI header
x86/headers: Clean up the kernel's struct sigcontext types to be ABI-clean
x86/headers: Convert uses of _fpstate_ia32 to _fpstate_32
x86/headers: Unify 'struct _fpstate_ia32' and i386 struct _fpstate
x86/headers: Unify register type definitions between 32-bit compat and i386
x86/headers: Use ABI types consistently in sigcontext*.h
x86/headers: Separate out legacy user-space structure definitions
x86/headers: Clean up and better document uapi/asm/sigcontext.h
x86/headers: Clean up uapi/asm/sigcontext32.h
x86/headers: Fix (old) header file dependency bug in uapi/asm/sigcontext32.h
Diffstat (limited to 'arch/x86/kernel/signal.c')
| -rw-r--r-- | arch/x86/kernel/signal.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c index 32165d649979..b7ffb7c00075 100644 --- a/arch/x86/kernel/signal.c +++ b/arch/x86/kernel/signal.c @@ -63,6 +63,7 @@ int restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc) { + unsigned long buf_val; void __user *buf; unsigned int tmpflags; unsigned int err = 0; @@ -107,7 +108,8 @@ int restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc) regs->flags = (regs->flags & ~FIX_EFLAGS) | (tmpflags & FIX_EFLAGS); regs->orig_ax = -1; /* disable syscall checks */ - get_user_ex(buf, &sc->fpstate); + get_user_ex(buf_val, &sc->fpstate); + buf = (void __user *)buf_val; } get_user_catch(err); err |= fpu__restore_sig(buf, config_enabled(CONFIG_X86_32)); |