x86/fpu/xstate: Use fpstate for copy_uabi_to_xstate()

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Prepare for dynamically enabled states per task. The function needs to
retrieve the features and sizes which are valid in a fpstate
context. Retrieve them from fpstate.

Move the function declarations to the core header as they are not
required anywhere else.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211013145323.233529986@linutronix.de

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Thomas Gleixner 2021-10-13 16:55:55 +02:00 • committed by Borislav Petkov

parent 3ac8d75778

commit 49e4eb4125

6 changed files with 26 additions and 25 deletions

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12

arch/x86/include/asm/fpu/xstate.h

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2

arch/x86/kernel/fpu/core.c

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5

arch/x86/kernel/fpu/regset.c

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2

arch/x86/kernel/fpu/signal.c

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18

arch/x86/kernel/fpu/xstate.c

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arch/x86/kernel/fpu/xstate.h

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