x86/fpu: Use bitfield accessors for desc_struct

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desc_struct is a union of u32 fields and bitfields. The access to the u32
fields is done with magic macros.

Convert it to use the bitfields and replace the macro magic with parseable
inline functions.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/20170828064958.042406718@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>

...

This commit is contained in:

Thomas Gleixner 2017-08-28 08:47:39 +02:00 • committed by Ingo Molnar

parent 1dd439fe97

commit 718f5d0030

3 changed files with 51 additions and 25 deletions

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11

arch/x86/math-emu/fpu_entry.c

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48

arch/x86/math-emu/fpu_system.h

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17

arch/x86/math-emu/get_address.c

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