x86/bugs: Remove x86_spec_ctrl_set()

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commit 4b59bdb569 upstream

x86_spec_ctrl_set() is only used in bugs.c and the extra mask checks there
provide no real value as both call sites can just write x86_spec_ctrl_base
to MSR_SPEC_CTRL. x86_spec_ctrl_base is valid and does not need any extra
masking or checking.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Thomas Gleixner 2018-05-12 20:53:14 +02:00 • committed by Greg Kroah-Hartman

parent 987f49474b

commit d13f068b94

2 changed files with 2 additions and 13 deletions

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2

arch/x86/include/asm/nospec-branch.h

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13

arch/x86/kernel/cpu/bugs.c

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