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author | David S. Miller <davem@davemloft.net> | 2015-10-24 06:54:12 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2015-10-24 06:54:12 -0700 |
commit | ba3e2084f268bdfed7627046e58a2218037e15af (patch) | |
tree | 36b99da43ee72f81b31f0627dbfc69f50c97378f /include/linux/overflow-arith.h | |
parent | Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next (diff) | |
parent | net: sysctl: fix a kmemleak warning (diff) | |
download | linux-dev-ba3e2084f268bdfed7627046e58a2218037e15af.tar.xz linux-dev-ba3e2084f268bdfed7627046e58a2218037e15af.zip |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
net/ipv6/xfrm6_output.c
net/openvswitch/flow_netlink.c
net/openvswitch/vport-gre.c
net/openvswitch/vport-vxlan.c
net/openvswitch/vport.c
net/openvswitch/vport.h
The openvswitch conflicts were overlapping changes. One was
the egress tunnel info fix in 'net' and the other was the
vport ->send() op simplification in 'net-next'.
The xfrm6_output.c conflicts was also a simplification
overlapping a bug fix.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/overflow-arith.h')
-rw-r--r-- | include/linux/overflow-arith.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/overflow-arith.h b/include/linux/overflow-arith.h new file mode 100644 index 000000000000..e12ccf854a70 --- /dev/null +++ b/include/linux/overflow-arith.h @@ -0,0 +1,18 @@ +#pragma once + +#include <linux/kernel.h> + +#ifdef CC_HAVE_BUILTIN_OVERFLOW + +#define overflow_usub __builtin_usub_overflow + +#else + +static inline bool overflow_usub(unsigned int a, unsigned int b, + unsigned int *res) +{ + *res = a - b; + return *res > a ? true : false; +} + +#endif |