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authorThomas Gleixner <tglx@linutronix.de>2016-09-14 20:53:26 +0200
committerThomas Gleixner <tglx@linutronix.de>2016-09-14 20:53:26 +0200
commit16217dc79dbc599b110dda26d0421df47904bba4 (patch)
tree98df3c18b14284b8a6f8b04de12e0b7dde5a55fa /lib/hweight.c
parentecb3f394c5dba897d215a5422f1b363e93e2ce4e (diff)
parent723344dd0b2aa10ef9d28fe7f35d594d3e64f0f9 (diff)
Merge tag 'irqchip-4.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core
Merge the first drop of irqchip updates for 4.9 from Marc Zyngier: - ACPI IORT core code - IORT support for the GICv3 ITS - A few of GIC cleanups
Diffstat (limited to 'lib/hweight.c')
-rw-r--r--lib/hweight.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/hweight.c b/lib/hweight.c
index 9a5c1f221558..43273a7d83cf 100644
--- a/lib/hweight.c
+++ b/lib/hweight.c
@@ -9,6 +9,7 @@
* The Hamming Weight of a number is the total number of bits set in it.
*/
+#ifndef __HAVE_ARCH_SW_HWEIGHT
unsigned int __sw_hweight32(unsigned int w)
{
#ifdef CONFIG_ARCH_HAS_FAST_MULTIPLIER
@@ -25,6 +26,7 @@ unsigned int __sw_hweight32(unsigned int w)
#endif
}
EXPORT_SYMBOL(__sw_hweight32);
+#endif
unsigned int __sw_hweight16(unsigned int w)
{
@@ -43,6 +45,7 @@ unsigned int __sw_hweight8(unsigned int w)
}
EXPORT_SYMBOL(__sw_hweight8);
+#ifndef __HAVE_ARCH_SW_HWEIGHT
unsigned long __sw_hweight64(__u64 w)
{
#if BITS_PER_LONG == 32
@@ -65,3 +68,4 @@ unsigned long __sw_hweight64(__u64 w)
#endif
}
EXPORT_SYMBOL(__sw_hweight64);
+#endif