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libbb: introduce kernel-style BUILD_BUG_ON()

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2015-10-13 14:50:20 +02:00
parent f7ad927c20
commit ab3964db4e
9 changed files with 20 additions and 39 deletions
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8
networking/ping.c
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@ -396,10 +396,8 @@ struct globals {
#define dotted (G.dotted )
#define pingaddr (G.pingaddr )
#define rcvd_tbl (G.rcvd_tbl )
void BUG_ping_globals_too_big(void);
#define INIT_G() do { \
if (sizeof(G) > COMMON_BUFSIZE) \
BUG_ping_globals_too_big(); \
BUILD_BUG_ON(sizeof(G) > COMMON_BUFSIZE); \
datalen = DEFDATALEN; \
timeout = MAXWAIT; \
tmin = UINT_MAX; \
@ -732,7 +730,6 @@ static void ping4(len_and_sockaddr *lsa)
}
}
#if ENABLE_PING6
extern int BUG_bad_offsetof_icmp6_cksum(void);
static void ping6(len_and_sockaddr *lsa)
{
int sockopt;
@ -769,8 +766,7 @@ static void ping6(len_and_sockaddr *lsa)
setsockopt_SOL_SOCKET_int(pingsock, SO_RCVBUF, sockopt);
sockopt = offsetof(struct icmp6_hdr, icmp6_cksum);
if (offsetof(struct icmp6_hdr, icmp6_cksum) != 2)
BUG_bad_offsetof_icmp6_cksum();
BUILD_BUG_ON(offsetof(struct icmp6_hdr, icmp6_cksum) != 2);
setsockopt_int(pingsock, SOL_RAW, IPV6_CHECKSUM, sockopt);
/* request ttl info to be returned in ancillary data */