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Subject[PATCH 3.13.y-ckt 41/96] arm64: errata: use KBUILD_CFLAGS_MODULE for erratum #843419
Date
3.13.11-ckt30 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Will Deacon <will.deacon@arm.com>

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 <ard.biesheuvel@linaro.org>
Fixes: df057cc7b4fa ("arm64: errata: add module build workaround for erratum #843419")
Reported-by: Dann Frazier <dann.frazier@canonical.com>
Tested-by: Dann Frazier <dann.frazier@canonical.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
---
arch/arm64/Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
index 0ab1a34..dcc2685 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -35,7 +35,7 @@ comma = ,
CHECKFLAGS += -D__aarch64__

ifeq ($(CONFIG_ARM64_ERRATUM_843419), y)
-CFLAGS_MODULE += -mcmodel=large
+KBUILD_CFLAGS_MODULE += -mcmodel=large
endif

# Default value
--
1.9.1


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