x86/fpu: Rename 'xsave_hdr' to 'header'

Code like:

           fpu->state->xsave.xsave_hdr.xstate_bv |= XSTATE_FP;

is an eyesore, because not only is the words 'xsave' and 'state'
are repeated twice times (!), but also because of the 'hdr' and 'bv'
abbreviations that are pretty meaningless at a first glance.

Start cleaning this up by renaming 'xsave_hdr' to 'header'.

Reviewed-by: Borislav Petkov <bp@alien8.de>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

4 files changed, 9 insertions, 9 deletions

diff --git a/arch/x86/include/asm/fpu/internal.h b/arch/x86/include/asm/fpu/internal.h
index 0e9a7a37801a..3007df99833e 100644
--- a/arch/x86/include/asm/fpu/internal.h
+++ b/arch/x86/include/asm/fpu/internal.h
@@ -261,7 +261,7 @@ static inline int fpu_save_init(struct fpu *fpu)
 		/*
 		 * xsave header may indicate the init state of the FP.
 		 */
-		if (!(fpu->state->xsave.xsave_hdr.xstate_bv & XSTATE_FP))
+		if (!(fpu->state->xsave.header.xstate_bv & XSTATE_FP))
 			return 1;
 	} else if (use_fxsr()) {
 		fpu_fxsave(fpu);
diff --git a/arch/x86/include/asm/fpu/types.h b/arch/x86/include/asm/fpu/types.h
index 917d2e56426a..33c0c7b782db 100644
--- a/arch/x86/include/asm/fpu/types.h
+++ b/arch/x86/include/asm/fpu/types.h
@@ -99,7 +99,7 @@ struct bndcsr {
 	u64				bndstatus;
 } __packed;
 
-struct xsave_hdr_struct {
+struct xstate_header {
 	u64				xstate_bv;
 	u64				xcomp_bv;
 	u64				reserved[6];
@@ -107,7 +107,7 @@ struct xsave_hdr_struct {
 
 struct xsave_struct {
 	struct i387_fxsave_struct	i387;
-	struct xsave_hdr_struct		xsave_hdr;
+	struct xstate_header		header;
 	struct ymmh_struct		ymmh;
 	struct lwp_struct		lwp;
 	struct bndreg			bndreg[4];
diff --git a/arch/x86/include/asm/fpu/xsave.h b/arch/x86/include/asm/fpu/xsave.h
index 400d5b2e42eb..b27b4466f88d 100644
--- a/arch/x86/include/asm/fpu/xsave.h
+++ b/arch/x86/include/asm/fpu/xsave.h
@@ -212,7 +212,7 @@ static inline int xsave_user(struct xsave_struct __user *buf)
 	 * Clear the xsave header first, so that reserved fields are
 	 * initialized to zero.
 	 */
-	err = __clear_user(&buf->xsave_hdr, sizeof(buf->xsave_hdr));
+	err = __clear_user(&buf->header, sizeof(buf->header));
 	if (unlikely(err))
 		return -EFAULT;
 
diff --git a/arch/x86/include/asm/user.h b/arch/x86/include/asm/user.h
index ccab4af1646d..fa042410c42c 100644
--- a/arch/x86/include/asm/user.h
+++ b/arch/x86/include/asm/user.h
@@ -14,7 +14,7 @@ struct user_ymmh_regs {
 	__u32 ymmh_space[64];
 };
 
-struct user_xsave_hdr {
+struct user_xstate_header {
 	__u64 xstate_bv;
 	__u64 reserved1[2];
 	__u64 reserved2[5];
@@ -41,11 +41,11 @@ struct user_xsave_hdr {
  * particular process/thread.
  *
  * Also when the user modifies certain state FP/SSE/etc through the
- * ptrace interface, they must ensure that the xsave_hdr.xstate_bv
+ * ptrace interface, they must ensure that the header.xstate_bv
  * bytes[512..519] of the memory layout are updated correspondingly.
  * i.e., for example when FP state is modified to a non-init state,
- * xsave_hdr.xstate_bv's bit 0 must be set to '1', when SSE is modified to
- * non-init state, xsave_hdr.xstate_bv's bit 1 must to be set to '1', etc.
+ * header.xstate_bv's bit 0 must be set to '1', when SSE is modified to
+ * non-init state, header.xstate_bv's bit 1 must to be set to '1', etc.
  */
 #define USER_XSTATE_FX_SW_WORDS 6
 #define USER_XSTATE_XCR0_WORD	0
@@ -55,7 +55,7 @@ struct user_xstateregs {
 		__u64 fpx_space[58];
 		__u64 xstate_fx_sw[USER_XSTATE_FX_SW_WORDS];
 	} i387;
-	struct user_xsave_hdr xsave_hdr;
+	struct user_xstate_header header;
 	struct user_ymmh_regs ymmh;
 	/* further processor state extensions go here */
 };