Thomas Gleixner eb6f51723f x86/fpu: Make copy_xstate_to_kernel() usable for [x]fpregs_get() ... When xsave with init state optimization is used then a component's state in the task's xsave buffer can be stale when the corresponding feature bit is not set. fpregs_get() and xfpregs_get() invoke fpstate_sanitize_xstate() to update the task's xsave buffer before retrieving the FX or FP state. That's just duplicated code as copy_xstate_to_kernel() already handles this correctly. Add a copy mode argument to the function which allows to restrict the state copy to the FP and SSE features. Also rename the function to copy_xstate_to_uabi_buf() so the name reflects what it is doing. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20210623121452.805327286@linutronix.de		2021-06-23 17:49:47 +02:00
..
bugs.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
core.c	x86/fpu: Move inlines where they belong	2021-06-23 17:49:46 +02:00
init.c	x86/fpu: Get rid of fpu__get_supported_xfeatures_mask()	2021-06-23 17:49:46 +02:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
regset.c	x86/fpu: Make copy_xstate_to_kernel() usable for [x]fpregs_get()	2021-06-23 17:49:47 +02:00
signal.c	Merge x86/urgent into x86/fpu	2021-06-23 17:43:38 +02:00
xstate.c	x86/fpu: Make copy_xstate_to_kernel() usable for [x]fpregs_get()	2021-06-23 17:49:47 +02:00