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authorThomas Gleixner <tglx@linutronix.de>2021-06-23 15:01:57 +0300
committerBorislav Petkov <bp@suse.de>2021-06-23 19:23:14 +0300
commit1cc34413ff3f18c30e5df89fefd95cc0f3b3292e (patch)
tree0f23927b81e6f37a2ca975369bbe51b141417f71 /arch
parent6fdc908cb56123591baa4259400cfb0787582b11 (diff)
downloadlinux-1cc34413ff3f18c30e5df89fefd95cc0f3b3292e.tar.xz
x86/fpu: Rename xstate copy functions which are related to UABI
Rename them to reflect that these functions deal with user space format XSAVE buffers. copy_kernel_to_xstate() -> copy_uabi_from_kernel_to_xstate() copy_user_to_xstate() -> copy_sigframe_from_user_to_xstate() Again a clear statement that these functions deal with user space ABI. Suggested-by: Andy Lutomirski <luto@kernel.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20210623121454.318485015@linutronix.de
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/include/asm/fpu/xstate.h4
-rw-r--r--arch/x86/kernel/fpu/regset.c2
-rw-r--r--arch/x86/kernel/fpu/signal.c2
-rw-r--r--arch/x86/kernel/fpu/xstate.c5
4 files changed, 7 insertions, 6 deletions
diff --git a/arch/x86/include/asm/fpu/xstate.h b/arch/x86/include/asm/fpu/xstate.h
index 6611e069e834..00e1a2ac5239 100644
--- a/arch/x86/include/asm/fpu/xstate.h
+++ b/arch/x86/include/asm/fpu/xstate.h
@@ -102,8 +102,8 @@ extern void __init update_regset_xstate_info(unsigned int size,
void *get_xsave_addr(struct xregs_state *xsave, int xfeature_nr);
int xfeature_size(int xfeature_nr);
-int copy_kernel_to_xstate(struct xregs_state *xsave, const void *kbuf);
-int copy_user_to_xstate(struct xregs_state *xsave, const void __user *ubuf);
+int copy_uabi_from_kernel_to_xstate(struct xregs_state *xsave, const void *kbuf);
+int copy_sigframe_from_user_to_xstate(struct xregs_state *xsave, const void __user *ubuf);
void copy_dynamic_supervisor_to_kernel(struct xregs_state *xstate, u64 mask);
void copy_kernel_to_dynamic_supervisor(struct xregs_state *xstate, u64 mask);
diff --git a/arch/x86/kernel/fpu/regset.c b/arch/x86/kernel/fpu/regset.c
index ddc290d9bf8e..892aec1dd822 100644
--- a/arch/x86/kernel/fpu/regset.c
+++ b/arch/x86/kernel/fpu/regset.c
@@ -166,7 +166,7 @@ int xstateregs_set(struct task_struct *target, const struct user_regset *regset,
}
fpu_force_restore(fpu);
- ret = copy_kernel_to_xstate(&fpu->state.xsave, kbuf ?: tmpbuf);
+ ret = copy_uabi_from_kernel_to_xstate(&fpu->state.xsave, kbuf ?: tmpbuf);
out:
vfree(tmpbuf);
diff --git a/arch/x86/kernel/fpu/signal.c b/arch/x86/kernel/fpu/signal.c
index 430c66dc2218..fd4b58d7b72e 100644
--- a/arch/x86/kernel/fpu/signal.c
+++ b/arch/x86/kernel/fpu/signal.c
@@ -422,7 +422,7 @@ static int __fpu__restore_sig(void __user *buf, void __user *buf_fx, int size)
if (use_xsave() && !fx_only) {
u64 init_bv = xfeatures_mask_user() & ~user_xfeatures;
- ret = copy_user_to_xstate(&fpu->state.xsave, buf_fx);
+ ret = copy_sigframe_from_user_to_xstate(&fpu->state.xsave, buf_fx);
if (ret)
goto out;
diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c
index 4fca8a8edff8..57674f8c2342 100644
--- a/arch/x86/kernel/fpu/xstate.c
+++ b/arch/x86/kernel/fpu/xstate.c
@@ -1099,7 +1099,7 @@ static inline bool mxcsr_valid(struct xstate_header *hdr, const u32 *mxcsr)
* Convert from a ptrace standard-format kernel buffer to kernel XSAVE[S] format
* and copy to the target thread. This is called from xstateregs_set().
*/
-int copy_kernel_to_xstate(struct xregs_state *xsave, const void *kbuf)
+int copy_uabi_from_kernel_to_xstate(struct xregs_state *xsave, const void *kbuf)
{
unsigned int offset, size;
int i;
@@ -1154,7 +1154,8 @@ int copy_kernel_to_xstate(struct xregs_state *xsave, const void *kbuf)
* XSAVE[S] format and copy to the target thread. This is called from the
* sigreturn() and rt_sigreturn() system calls.
*/
-int copy_user_to_xstate(struct xregs_state *xsave, const void __user *ubuf)
+int copy_sigframe_from_user_to_xstate(struct xregs_state *xsave,
+ const void __user *ubuf)
{
unsigned int offset, size;
int i;