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powerpc/ptdump: Only enable PPC_CHECK_WX with STRICT_KERNEL_RWX 

commit f509247b08 upstream.

ptdump_check_wx() is called from mark_rodata_ro() which only exists
when CONFIG_STRICT_KERNEL_RWX is selected.

Fixes: 453d87f6a8 ("powerpc/mm: Warn if W+X pages found on boot")
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/922d4939c735c6b52b4137838bcc066fffd4fc33.1578989545.git.christophe.leroy@c-s.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
5.4-rM2-2.2.x-imx-squashed
Christophe Leroy 2020-01-14 08:13:10 +00:00 committed by Greg Kroah-Hartman
parent 17f37249d7
commit 05a23f4364
1 changed files with 1 additions and 1 deletions
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arch/powerpc/Kconfig.debug
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@ -371,7 +371,7 @@ config PPC_PTDUMP
config PPC_DEBUG_WX
bool "Warn on W+X mappings at boot"
depends on PPC_PTDUMP
depends on PPC_PTDUMP && STRICT_KERNEL_RWX
help
Generate a warning if any W+X mappings are found at boot.