powerpc/32: Remove the counter in global_dbcr0

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global_dbcr0 has two parts, 4 bytes to save/restore the
value of SPRN_DBCR0, and 4 bytes that are incremented/decremented
everytime something is saving/loading the above value.

This counter is only incremented/decremented, its value is never
used and never read.

Remove the counter and devide the size of global_dbcr0 by 2.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/7e381dc58b3f583556cfab37ba5d813bfd5cce1e.1612796617.git.christophe.leroy@csgroup.eu

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This commit is contained in:

Christophe Leroy 2021-02-08 15:10:41 +00:00 • committed by Michael Ellerman

parent 4d67facbcb

commit eb595eca74

3 changed files with 4 additions and 16 deletions

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12

arch/powerpc/kernel/entry_32.S

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3

arch/powerpc/kernel/head_32.h

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5

arch/powerpc/kernel/head_booke.h

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