x86/fpu: Use copy_xstate_to_uabi_buf() in fpregs_get()

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Use the new functionality of copy_xstate_to_uabi_buf() to retrieve the
FX state when XSAVE* is in use. This avoids to overwrite the FPU state
buffer with fpstate_sanitize_xstate() which is error prone and duplicated
code.

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/20210623121453.014441775@linutronix.de

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Thomas Gleixner 2021-06-23 14:01:44 +02:00 • committed by Borislav Petkov

parent adc997b3d6

commit 3f7f75634c

1 changed files with 20 additions and 10 deletions

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arch/x86/kernel/fpu/regset.c

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