diff options
| author | Fenghua Yu <fenghua.yu@intel.com> | 2020-05-12 16:54:35 +0200 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2020-05-12 20:20:32 +0200 |
| commit | 5274e6c172c47241534e970df26a522497086624 (patch) | |
| tree | fcd0803f49fb1f9bf308d9023a073543b634c546 /arch/x86/kernel/fpu/xstate.c | |
| parent | Linux 5.7-rc5 (diff) | |
| download | linux-5274e6c172c47241534e970df26a522497086624.tar.xz linux-5274e6c172c47241534e970df26a522497086624.zip | |
x86/fpu/xstate: Rename validate_xstate_header() to validate_user_xstate_header()
The function validate_xstate_header() validates an xstate header coming
from userspace (PTRACE or sigreturn). To make it clear, rename it to
validate_user_xstate_header().
Suggested-by: Dave Hansen <dave.hansen@intel.com>
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Yu-cheng Yu <yu-cheng.yu@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Reviewed-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20200512145444.15483-2-yu-cheng.yu@intel.com
Diffstat (limited to 'arch/x86/kernel/fpu/xstate.c')
| -rw-r--r-- | arch/x86/kernel/fpu/xstate.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c index 32b153d38748..8ed64397c78b 100644 --- a/arch/x86/kernel/fpu/xstate.c +++ b/arch/x86/kernel/fpu/xstate.c @@ -472,7 +472,7 @@ int using_compacted_format(void) } /* Validate an xstate header supplied by userspace (ptrace or sigreturn) */ -int validate_xstate_header(const struct xstate_header *hdr) +int validate_user_xstate_header(const struct xstate_header *hdr) { /* No unknown or supervisor features may be set */ if (hdr->xfeatures & (~xfeatures_mask | XFEATURE_MASK_SUPERVISOR)) @@ -1147,7 +1147,7 @@ int copy_kernel_to_xstate(struct xregs_state *xsave, const void *kbuf) memcpy(&hdr, kbuf + offset, size); - if (validate_xstate_header(&hdr)) + if (validate_user_xstate_header(&hdr)) return -EINVAL; for (i = 0; i < XFEATURE_MAX; i++) { @@ -1201,7 +1201,7 @@ int copy_user_to_xstate(struct xregs_state *xsave, const void __user *ubuf) if (__copy_from_user(&hdr, ubuf + offset, size)) return -EFAULT; - if (validate_xstate_header(&hdr)) + if (validate_user_xstate_header(&hdr)) return -EINVAL; for (i = 0; i < XFEATURE_MAX; i++) { |