From: Ingo Molnar Date: Wed, 27 May 2015 12:04:44 +0000 (+0200) Subject: x86/fpu: Simplify copy_kernel_to_xregs_booting() X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=d65fcd608f6a9ac0316bd3efc75956ca329b6571;p=linux-beck.git x86/fpu: Simplify copy_kernel_to_xregs_booting() copy_kernel_to_xregs_booting() has a second parameter that is the mask of xfeatures that should be copied - but this parameter is always -1. Simplify the call site of this function, this also makes it more similar to the function call signature of other copy_kernel_to*regs() functions. Cc: Andy Lutomirski Cc: Bobby Powers Cc: Borislav Petkov Cc: Dave Hansen Cc: Fenghua Yu Cc: H. Peter Anvin Cc: Linus Torvalds Cc: Oleg Nesterov Cc: Thomas Gleixner Signed-off-by: Ingo Molnar --- diff --git a/arch/x86/include/asm/fpu/internal.h b/arch/x86/include/asm/fpu/internal.h index 12acbb32a561..9f3863872007 100644 --- a/arch/x86/include/asm/fpu/internal.h +++ b/arch/x86/include/asm/fpu/internal.h @@ -271,8 +271,9 @@ static inline void copy_xregs_to_kernel_booting(struct xregs_state *xstate) * This function is called only during boot time when x86 caps are not set * up and alternative can not be used yet. */ -static inline void copy_kernel_to_xregs_booting(struct xregs_state *xstate, u64 mask) +static inline void copy_kernel_to_xregs_booting(struct xregs_state *xstate) { + u64 mask = -1; u32 lmask = mask; u32 hmask = mask >> 32; int err = 0; diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c index ad4dd26ebd59..a580eb5c7e52 100644 --- a/arch/x86/kernel/fpu/xstate.c +++ b/arch/x86/kernel/fpu/xstate.c @@ -281,7 +281,7 @@ static void __init setup_init_fpu_buf(void) /* * Init all the features state with header_bv being 0x0 */ - copy_kernel_to_xregs_booting(&init_fpstate.xsave, -1); + copy_kernel_to_xregs_booting(&init_fpstate.xsave); /* * Dump the init state again. This is to identify the init state