x86/percpu: Declare const_pcpu_hot as extern const variable

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const_pcpu_hot is aliased by linker to pcpu_hot, so there is no need
to use the DECLARE_PER_CPU_ALIGNED() macro. Also, declare const_pcpu_hot
as extern to avoid allocating storage space for the aliased structure.

Fixes: ed2f752e0e ("x86/percpu: Introduce const-qualified const_pcpu_hot to micro-optimize code generation")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20231130162949.83518-1-ubizjak@gmail.com
Closes: https://lore.kernel.org/oe-kbuild-all/202311302257.tSFtZnly-lkp@intel.com/

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Uros Bizjak 2023-11-30 17:27:35 +01:00 • committed by Ingo Molnar

parent 6724ba89e0

commit 4604c052b8

1 changed files with 1 additions and 2 deletions

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arch/x86/include/asm/current.h

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