Messages in this thread Patch in this message | | | Date | Fri, 11 Jun 2021 18:15:26 +0200 | From | Thomas Gleixner <> | Subject | [patch 03/41] x86/fpu: Remove unused get_xsave_field_ptr() |
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de> --- V4: New patch --- arch/x86/include/asm/fpu/xstate.h | 1 - arch/x86/kernel/fpu/xstate.c | 30 ------------------------------ 2 files changed, 31 deletions(-)
--- a/arch/x86/include/asm/fpu/xstate.h +++ b/arch/x86/include/asm/fpu/xstate.h @@ -101,7 +101,6 @@ extern void __init update_regset_xstate_ u64 xstate_mask); void *get_xsave_addr(struct xregs_state *xsave, int xfeature_nr); -const void *get_xsave_field_ptr(int xfeature_nr); int using_compacted_format(void); int xfeature_size(int xfeature_nr); struct membuf; --- a/arch/x86/kernel/fpu/xstate.c +++ b/arch/x86/kernel/fpu/xstate.c @@ -955,36 +955,6 @@ void *get_xsave_addr(struct xregs_state } EXPORT_SYMBOL_GPL(get_xsave_addr); -/* - * This wraps up the common operations that need to occur when retrieving - * data from xsave state. It first ensures that the current task was - * using the FPU and retrieves the data in to a buffer. It then calculates - * the offset of the requested field in the buffer. - * - * This function is safe to call whether the FPU is in use or not. - * - * Note that this only works on the current task. - * - * Inputs: - * @xfeature_nr: state which is defined in xsave.h (e.g. XFEATURE_FP, - * XFEATURE_SSE, etc...) - * Output: - * address of the state in the xsave area or NULL if the state - * is not present or is in its 'init state'. - */ -const void *get_xsave_field_ptr(int xfeature_nr) -{ - struct fpu *fpu = ¤t->thread.fpu; - - /* - * fpu__save() takes the CPU's xstate registers - * and saves them off to the 'fpu memory buffer. - */ - fpu__save(fpu); - - return get_xsave_addr(&fpu->state.xsave, xfeature_nr); -} - #ifdef CONFIG_ARCH_HAS_PKEYS /*
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