Patchwork [1/4] powerpc: remove the unused function disable_kernel_fp()

login
register
mail settings
Submitter Kevin Hao
Date July 14, 2013, 9:02 a.m.
Message ID <1373792526-16241-2-git-send-email-haokexin@gmail.com>
Download mbox | patch
Permalink /patch/258891/
State Accepted, archived
Commit 6ef94ff2e8e593de6de8d8d299a5fffaed35329c
Delegated to: Benjamin Herrenschmidt
Headers show

Comments

Kevin Hao - July 14, 2013, 9:02 a.m.
The only using of function disable_kernel_fp() was already dropped
in the commit 5daf9071 (powerpc: merge align.c).

Signed-off-by: Kevin Hao <haokexin@gmail.com>
---
 arch/powerpc/include/asm/switch_to.h |  1 -
 arch/powerpc/kernel/misc_64.S        | 13 -------------
 2 files changed, 14 deletions(-)

Patch

diff --git a/arch/powerpc/include/asm/switch_to.h b/arch/powerpc/include/asm/switch_to.h
index 49a13e0..33e1cd8 100644
--- a/arch/powerpc/include/asm/switch_to.h
+++ b/arch/powerpc/include/asm/switch_to.h
@@ -18,7 +18,6 @@  extern struct task_struct *_switch(struct thread_struct *prev,
 
 extern void giveup_fpu(struct task_struct *);
 extern void load_up_fpu(void);
-extern void disable_kernel_fp(void);
 extern void enable_kernel_fp(void);
 extern void flush_fp_to_thread(struct task_struct *);
 extern void enable_kernel_altivec(void);
diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S
index 6820e45..8110abe 100644
--- a/arch/powerpc/kernel/misc_64.S
+++ b/arch/powerpc/kernel/misc_64.S
@@ -416,19 +416,6 @@  _GLOBAL(scom970_write)
 	blr
 #endif /* CONFIG_CPU_FREQ_PMAC64 || CONFIG_CPU_FREQ_MAPLE */
 
-
-/*
- * disable_kernel_fp()
- * Disable the FPU.
- */
-_GLOBAL(disable_kernel_fp)
-	mfmsr	r3
-	rldicl	r0,r3,(63-MSR_FP_LG),1
-	rldicl	r3,r0,(MSR_FP_LG+1),0
-	mtmsrd	r3			/* disable use of fpu now */
-	isync
-	blr
-
 /* kexec_wait(phys_cpu)
  *
  * wait for the flag to change, indicating this kernel is going away but