diff options
| author | Ingo Molnar <mingo@kernel.org> | 2017-09-23 14:59:57 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-09-24 13:04:33 +0200 |
| commit | 6d7f7da5533a3f841eeb1d9657257c9367924274 (patch) | |
| tree | 8980ac7c38cb41239303862dbc23e022bce4a7ed /arch/x86/kernel | |
| parent | 7b9094c688f807c110a2dab6f6edc5876bfa7b0b (diff) | |
| download | linux-6d7f7da5533a3f841eeb1d9657257c9367924274.tar.gz | |
x86/fpu: Flip the parameter order in copy_*_to_xstate()
Make it more consistent with regular memcpy() semantics, where the destination argument comes first. No change in functionality. Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Eric Biggers <ebiggers3@gmail.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rik van Riel <riel@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Yu-cheng Yu <yu-cheng.yu@intel.com> Link: http://lkml.kernel.org/r/20170923130016.21448-15-mingo@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel')
| -rw-r--r-- | arch/x86/kernel/fpu/regset.c | 4 | ||||
| -rw-r--r-- | arch/x86/kernel/fpu/signal.c | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/fpu/xstate.c | 4 |
3 files changed, 5 insertions, 5 deletions
diff --git a/arch/x86/kernel/fpu/regset.c b/arch/x86/kernel/fpu/regset.c index caf723f31737..19a7385a912c 100644 --- a/arch/x86/kernel/fpu/regset.c +++ b/arch/x86/kernel/fpu/regset.c @@ -136,9 +136,9 @@ int xstateregs_set(struct task_struct *target, const struct user_regset *regset, if (boot_cpu_has(X86_FEATURE_XSAVES)) { if (kbuf) - ret = copy_kernel_to_xstate(kbuf, xsave); + ret = copy_kernel_to_xstate(xsave, kbuf); else - ret = copy_user_to_xstate(ubuf, xsave); + ret = copy_user_to_xstate(xsave, ubuf); } else { ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, xsave, 0, -1); } diff --git a/arch/x86/kernel/fpu/signal.c b/arch/x86/kernel/fpu/signal.c index 2c685b492fd6..2d682dac35d4 100644 --- a/arch/x86/kernel/fpu/signal.c +++ b/arch/x86/kernel/fpu/signal.c @@ -324,7 +324,7 @@ static int __fpu__restore_sig(void __user *buf, void __user *buf_fx, int size) fpu__drop(fpu); if (using_compacted_format()) - err = copy_user_to_xstate(buf_fx, &fpu->state.xsave); + err = copy_user_to_xstate(&fpu->state.xsave, buf_fx); else err = __copy_from_user(&fpu->state.xsave, buf_fx, state_size); diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c index b1f3e4dae2e3..0ef35040d0ad 100644 --- a/arch/x86/kernel/fpu/xstate.c +++ b/arch/x86/kernel/fpu/xstate.c @@ -1089,7 +1089,7 @@ int copy_xstate_to_user(void __user *ubuf, struct xregs_state *xsave, unsigned i * there we check the CPU has XSAVES and a whole standard-sized buffer * exists. */ -int copy_kernel_to_xstate(const void *kbuf, struct xregs_state *xsave) +int copy_kernel_to_xstate(struct xregs_state *xsave, const void *kbuf) { unsigned int offset, size; int i; @@ -1142,7 +1142,7 @@ int copy_kernel_to_xstate(const void *kbuf, struct xregs_state *xsave) * there we check the CPU has XSAVES and a whole standard-sized buffer * exists. */ -int copy_user_to_xstate(const void __user *ubuf, struct xregs_state *xsave) +int copy_user_to_xstate(struct xregs_state *xsave, const void __user *ubuf) { unsigned int offset, size; int i; |