From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Fri, 6 Nov 2015 17:12:41 +0000 (-0800)
Subject: x86: don't make DEBUG_WX default to 'y' even with DEBUG_RODATA
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=54727e6e950aacd14ec9cd4260e9fe498322828c;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

x86: don't make DEBUG_WX default to 'y' even with DEBUG_RODATA

It turns out that we still have issues with the EFI memory map that ends
up polluting our kernel page tables with writable executable pages.

That will get sorted out, but in the meantime let's not make the scary
complaint about them be on by default.  The code is useful for
developers, but not ready for end user testing yet.

Acked-by: Borislav Petkov <bp@alien8.de>
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 3e0baf726eef..137dfa96aa14 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -113,7 +113,6 @@ config DEBUG_RODATA_TEST
 config DEBUG_WX
 	bool "Warn on W+X mappings at boot"
 	depends on DEBUG_RODATA
-	default y
 	select X86_PTDUMP_CORE
 	---help---
 	  Generate a warning if any W+X mappings are found at boot.