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authorJohannes Berg <johannes.berg@intel.com>2014-02-20 11:55:12 +0100
committerJohannes Berg <johannes.berg@intel.com>2014-02-20 11:55:12 +0100
commitbf5f48339a019c9b4b42284c3f45d58942cbda27 (patch)
tree79976135166ffbdaf4ccb91bcadb17ddb551f060 /arch/powerpc/include/asm/bitops.h
parentd85dad75566674ca8012715ac00a84ced3697972 (diff)
parent35582ad9d342025653aaf28ed321bf5352488d7f (diff)
Merge remote-tracking branch 'wireless-next/master' into mac80211-next
Diffstat (limited to 'arch/powerpc/include/asm/bitops.h')
-rw-r--r--arch/powerpc/include/asm/bitops.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/bitops.h b/arch/powerpc/include/asm/bitops.h
index 910194e9a1e..a5e9a7d494d 100644
--- a/arch/powerpc/include/asm/bitops.h
+++ b/arch/powerpc/include/asm/bitops.h
@@ -46,6 +46,11 @@
#include <asm/asm-compat.h>
#include <asm/synch.h>
+/* PPC bit number conversion */
+#define PPC_BITLSHIFT(be) (BITS_PER_LONG - 1 - (be))
+#define PPC_BIT(bit) (1UL << PPC_BITLSHIFT(bit))
+#define PPC_BITMASK(bs, be) ((PPC_BIT(bs) - PPC_BIT(be)) | PPC_BIT(bs))
+
/*
* clear_bit doesn't imply a memory barrier
*/