diff options
| author | Yejune Deng <yejune.deng@gmail.com> | 2021-01-22 15:19:25 +0800 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2021-01-29 12:33:17 +0100 |
| commit | 0a74d61c7d842b583f33f74d7a9e93201826f4c5 (patch) | |
| tree | 439254e20f64bf65c0d83f22198f8309382eff91 /arch/x86 | |
| parent | 49200d17d27d5cc1aede2d1bb2a78dbfc1563e65 (diff) | |
x86/fpu/xstate: Use sizeof() instead of a constant
Use sizeof() instead of a constant in fpstate_sanitize_xstate().
Remove use of the address of the 0th array element of ->st_space and
->xmm_space which is equivalent to the array address itself:
No code changed:
# arch/x86/kernel/fpu/xstate.o:
text data bss dec hex filename
9694 899 4 10597 2965 xstate.o.before
9694 899 4 10597 2965 xstate.o.after
md5:
5a43fc70bad8e2a1784f67f01b71aabb xstate.o.before.asm
5a43fc70bad8e2a1784f67f01b71aabb xstate.o.after.asm
[ bp: Massage commit message. ]
Signed-off-by: Yejune Deng <yejune.deng@gmail.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20210122071925.41285-1-yejune.deng@gmail.com
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kernel/fpu/xstate.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c index 5d8047441a0a..683749b80ae2 100644 --- a/arch/x86/kernel/fpu/xstate.c +++ b/arch/x86/kernel/fpu/xstate.c @@ -167,14 +167,14 @@ void fpstate_sanitize_xstate(struct fpu *fpu) fx->fop = 0; fx->rip = 0; fx->rdp = 0; - memset(&fx->st_space[0], 0, 128); + memset(fx->st_space, 0, sizeof(fx->st_space)); } /* * SSE is in init state */ if (!(xfeatures & XFEATURE_MASK_SSE)) - memset(&fx->xmm_space[0], 0, 256); + memset(fx->xmm_space, 0, sizeof(fx->xmm_space)); /* * First two features are FPU and SSE, which above we handled |