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Patch "arm64: errata: use KBUILD_CFLAGS_MODULE for erratum #843419" has been added to the 4.1-stable tree

PATCH [email protected] 1 participant 1 message Oct 23, 2015

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This is a note to let you know that I've just added the patch titled

arm64: errata: use KBUILD_CFLAGS_MODULE for erratum #843419

to the 4.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:

     arm64-errata-use-kbuild_cflags_module-for-erratum-843419.patch

and it can be found in the queue-4.1 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

Quoted 1 line

From b6dd8e0719c0d2d01429639a11b7bc2677de240c Mon Sep 17 00:00:00 2001

From: Will Deacon <[email protected]>
Date: Thu, 8 Oct 2015 11:11:17 +0100
Subject: arm64: errata: use KBUILD_CFLAGS_MODULE for erratum #843419

From: Will Deacon <[email protected]>

commit b6dd8e0719c0d2d01429639a11b7bc2677de240c upstream.

Commit df057cc7b4fa ("arm64: errata: add module build workaround for erratum #843419") sets CFLAGS_MODULE to ensure that the large memory model is used by the compiler when building kernel modules.

However, CFLAGS_MODULE is an environment variable and intended to be overridden on the command line, which appears to be the case with the Ubuntu kernel packaging system, so use KBUILD_CFLAGS_MODULE instead.

Cc Ard Biesheuvel <[email protected]>
Fixes df057cc7b4fa ("arm64: errata: add module build workaround for erratum #843419")
---
 arch/arm64/Makefile |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
arch/arm64/Makefile +1 -1
@@ -31,7 +31,7 @@ endif
 CHECKFLAGS	+= -D__aarch64__
 
 ifeq ($(CONFIG_ARM64_ERRATUM_843419), y)
-CFLAGS_MODULE	+= -mcmodel=large
+KBUILD_CFLAGS_MODULE	+= -mcmodel=large
 endif
 
 # Default value

Patches currently in stable-queue which might be from [email protected] are

queue-4.1/arm64-errata-use-kbuild_cflags_module-for-erratum-843419.patch