path: root/fs/ubifs
diff options
authorTom Rini <>2014-02-25 10:27:01 -0500
committerAlbert ARIBAUD <>2014-02-26 21:19:32 +0100
commit1551df35f296f0a8df32f4f2054254f46e8be252 (patch)
tree5c93d004be051b5b3cfae8c5cbdf297f8b07bb9b /fs/ubifs
parentf503cc49a570b1e28a93b75bc912aedc93ba2cd0 (diff)
arm: Switch to -mno-unaligned-access when supported by the compiler
When we tell the compiler to optimize for ARMv7 (and ARMv6 for that matter) it assumes a default of SCTRL.A being cleared and unaligned accesses being allowed and fast at the hardware level. We set this bit and must pass along -mno-unaligned-access so that the compiler will still breakdown accesses and not trigger a data abort. To better help understand the requirements of the project with respect to unaligned memory access, the Documentation/unaligned-memory-access.txt file has been added as doc/README.unaligned-memory-access.txt and is taken from the v3.14-rc1 tag of the kernel. Cc: Albert ARIBAUD <> Cc: Mans Rullgard <> Signed-off-by: Tom Rini <>
Diffstat (limited to 'fs/ubifs')
1 files changed, 0 insertions, 3 deletions
diff --git a/fs/ubifs/Makefile b/fs/ubifs/Makefile
index 6b1a9a5b00..8c8c6ac683 100644
--- a/fs/ubifs/Makefile
+++ b/fs/ubifs/Makefile
@@ -13,6 +13,3 @@ obj-y := ubifs.o io.o super.o sb.o master.o lpt.o
obj-y += lpt_commit.o scan.o lprops.o
obj-y += tnc.o tnc_misc.o debug.o crc16.o budget.o
obj-y += log.o orphan.o recovery.o replay.o
-# SEE README.arm-unaligned-accesses
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