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Commit bc861959 authored by Bjørn Mork's avatar Bjørn Mork Committed by David S. Miller
Browse files

ipv6: addrconf: silence sparse endianness warnings 



Avoid the following sparse __CHECK_ENDIAN__ warnings:

 include/net/addrconf.h:318:25: warning: restricted __be64 degrades to integer
 include/net/addrconf.h:318:70: warning: restricted __be64 degrades to integer
 include/net/addrconf.h:330:25: warning: restricted __be64 degrades to integer
 include/net/addrconf.h:330:70: warning: restricted __be64 degrades to integer
 include/net/addrconf.h:347:25: warning: restricted __be64 degrades to integer
 include/net/addrconf.h:348:26: warning: restricted __be64 degrades to integer
 include/net/addrconf.h:349:18: warning: restricted __be64 degrades to integer

The warnings are false but they make it harder to spot real
bugs.

Signed-off-by: default avatarBjørn Mork <bjorn@mork.no>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 5e2c21dc

include/net/addrconf.h

+3 −3
Original line number Diff line number Diff line
@@ -314,7 +314,7 @@ static inline bool ipv6_addr_is_multicast(const struct in6_addr *addr) 
static inline bool ipv6_addr_is_ll_all_nodes(const struct in6_addr *addr)

{

#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64

	__u64 *p = (__u64 *)addr;

	__be64 *p = (__be64 *)addr;

	return ((p[0] ^ cpu_to_be64(0xff02000000000000UL)) | (p[1] ^ cpu_to_be64(1))) == 0UL;

#else

	return ((addr->s6_addr32[0] ^ htonl(0xff020000)) |
@@ -326,7 +326,7 @@ static inline bool ipv6_addr_is_ll_all_nodes(const struct in6_addr *addr) 
static inline bool ipv6_addr_is_ll_all_routers(const struct in6_addr *addr)

{

#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64

	__u64 *p = (__u64 *)addr;

	__be64 *p = (__be64 *)addr;

	return ((p[0] ^ cpu_to_be64(0xff02000000000000UL)) | (p[1] ^ cpu_to_be64(2))) == 0UL;

#else

	return ((addr->s6_addr32[0] ^ htonl(0xff020000)) |
@@ -343,7 +343,7 @@ static inline bool ipv6_addr_is_isatap(const struct in6_addr *addr) 
static inline bool ipv6_addr_is_solict_mult(const struct in6_addr *addr)

{

#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) && BITS_PER_LONG == 64

	__u64 *p = (__u64 *)addr;

	__be64 *p = (__be64 *)addr;

	return ((p[0] ^ cpu_to_be64(0xff02000000000000UL)) |

		((p[1] ^ cpu_to_be64(0x00000001ff000000UL)) &

		 cpu_to_be64(0xffffffffff000000UL))) == 0UL;