From: Kevin Hao Date: Sun, 14 Jul 2013 09:02:03 +0000 (+0800) Subject: powerpc: remove the unused function disable_kernel_fp() X-Git-Tag: v3.12-rc1~123^2~68 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6ef94ff2e8e593de6de8d8d299a5fffaed35329c;p=profile%2Fivi%2Fkernel-x86-ivi.git powerpc: remove the unused function disable_kernel_fp() The only using of function disable_kernel_fp() was already dropped in the commit 5daf9071 (powerpc: merge align.c). Signed-off-by: Kevin Hao Signed-off-by: Benjamin Herrenschmidt --- 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 0db7cb4..971d7e7 100644 --- a/arch/powerpc/kernel/misc_64.S +++ b/arch/powerpc/kernel/misc_64.S @@ -449,19 +449,6 @@ _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