hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

net: fix endian check warning in etherdevice.h 

Sparse builds have been warning for a really long time now
that etherdevice.h has a conversion that is unsafe.

  include/linux/etherdevice.h:79:32: warning: restricted __be16 degrades to integer

This code change fixes the issue and generates the exact
same assembly before/after (checked on x86_64)

Fixes: 2c722fe1c8 (etherdevice: Optimize a few is_<foo>_ether_addr functions)
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
CC: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jesse Brandeburg 2015-08-13 18:34:03 -07:00 committed by David S. Miller
parent f3ae683f09
commit fbaff3ef85
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
include/linux/etherdevice.h
View File

@ -76,7 +76,7 @@ static inline bool is_link_local_ether_addr(const u8 *addr)
#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
return (((*(const u32 *)addr) ^ (*(const u32 *)b)) |
((a[2] ^ b[2]) & m)) == 0;
(__force int)((a[2] ^ b[2]) & m)) == 0;
#else
return ((a[0] ^ b[0]) | (a[1] ^ b[1]) | ((a[2] ^ b[2]) & m)) == 0;
#endif