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authorIngo Molnar <mingo@elte.hu>2008-07-26 11:26:19 +0200
committerIngo Molnar <mingo@elte.hu>2008-07-26 11:26:19 +0200
commit88bef5a4074e0568cf54df410f41065c06694d8a (patch)
treebc4d59f57ce315bcb16dad5491ab9983ab122d8a /arch/Kconfig
parent054a3fd824705543322d787893de9f3755151517 (diff)
parent024e8ac04453b3525448c31ef39848cf675ba6db (diff)
Merge branch 'linus' into x86/urgent
Diffstat (limited to 'arch/Kconfig')
-rw-r--r--arch/Kconfig29
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/Kconfig b/arch/Kconfig
index ad89a33d8c6..b0fabfa864f 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -27,10 +27,32 @@ config KPROBES
for kernel debugging, non-intrusive instrumentation and testing.
If in doubt, say "N".
+config HAVE_EFFICIENT_UNALIGNED_ACCESS
+ def_bool n
+ help
+ Some architectures are unable to perform unaligned accesses
+ without the use of get_unaligned/put_unaligned. Others are
+ unable to perform such accesses efficiently (e.g. trap on
+ unaligned access and require fixing it up in the exception
+ handler.)
+
+ This symbol should be selected by an architecture if it can
+ perform unaligned accesses efficiently to allow different
+ code paths to be selected for these cases. Some network
+ drivers, for example, could opt to not fix up alignment
+ problems with received packets if doing so would not help
+ much.
+
+ See Documentation/unaligned-memory-access.txt for more
+ information on the topic of unaligned memory accesses.
+
config KRETPROBES
def_bool y
depends on KPROBES && HAVE_KRETPROBES
+config HAVE_IOREMAP_PROT
+ def_bool n
+
config HAVE_KPROBES
def_bool n
@@ -42,3 +64,10 @@ config HAVE_DMA_ATTRS
config USE_GENERIC_SMP_HELPERS
def_bool n
+
+config HAVE_CLK
+ def_bool n
+ help
+ The <linux/clk.h> calls support software clock gating and
+ thus are a key power management tool on many systems.
+