diff mbox

[v3,15/21] powerpc: Remove mfvtb()

Message ID 1469629097-30859-15-git-send-email-mpe@ellerman.id.au (mailing list archive)
State Accepted
Headers show

Commit Message

Michael Ellerman July 27, 2016, 2:18 p.m. UTC 
From: Kevin Hao <haokexin@gmail.com>

This function is only used by get_vtb(). They are almost the same except
the reading from the real register. Move the mfspr() to get_vtb() and
kill the function mfvtb(). With this, we can eliminate the use of
cpu_has_feature() in very core header file like reg.h. This is a
preparation for the use of jump label for cpu_has_feature().

Signed-off-by: Kevin Hao <haokexin@gmail.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---
 arch/powerpc/include/asm/reg.h  | 9 ---------
 arch/powerpc/include/asm/time.h | 2 +-
 2 files changed, 1 insertion(+), 10 deletions(-)

v3: No change.
diff mbox

Patch

diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index d7e9ab5e4709..817c005205f0 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -1256,15 +1256,6 @@  static inline void msr_check_and_clear(unsigned long bits)
 		__msr_check_and_clear(bits);
 }
 
-static inline unsigned long mfvtb (void)
-{
-#ifdef CONFIG_PPC_BOOK3S_64
-	if (cpu_has_feature(CPU_FTR_ARCH_207S))
-		return mfspr(SPRN_VTB);
-#endif
-	return 0;
-}
-
 #ifdef __powerpc64__
 #if defined(CONFIG_PPC_CELL) || defined(CONFIG_PPC_FSL_BOOK3E)
 #define mftb()		({unsigned long rval;				\
diff --git a/arch/powerpc/include/asm/time.h b/arch/powerpc/include/asm/time.h
index 09211640a0e0..cbbeaf0a6597 100644
--- a/arch/powerpc/include/asm/time.h
+++ b/arch/powerpc/include/asm/time.h
@@ -103,7 +103,7 @@  static inline u64 get_vtb(void)
 {
 #ifdef CONFIG_PPC_BOOK3S_64
 	if (cpu_has_feature(CPU_FTR_ARCH_207S))
-		return mfvtb();
+		return mfspr(SPRN_VTB);
 #endif
 	return 0;
 }