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powerpc/ptdump: get out of note_prot_wx() when CONFIG_PPC_DEBUG_WX is not selected. 

When CONFIG_PPC_DEBUG_WX, note_prot_wx() is useless.

Get out of it early and inconditionnally in that case,
so that GCC can kick all the code out.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/ff6c8f631bd4ce3a10e0cc241eb569816187bc20.1565786091.git.christophe.leroy@c-s.fr
This commit is contained in:
Christophe Leroy 2019-08-14 12:36:12 +00:00 committed by Michael Ellerman
parent 8224235272
commit f3a2ac0589
1 changed files with 1 additions and 1 deletions
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2
arch/powerpc/mm/ptdump/ptdump.c
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@ -177,7 +177,7 @@ static void dump_addr(struct pg_state *st, unsigned long addr)
static void note_prot_wx(struct pg_state *st, unsigned long addr)
{
if (!st->check_wx)
if (!IS_ENABLED(CONFIG_PPC_DEBUG_WX) || !st->check_wx)
return;
if (!((st->current_flags & pgprot_val(PAGE_KERNEL_X)) == pgprot_val(PAGE_KERNEL_X)))