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Patch #9307: Replace mem_malloc+memset with mem_calloc

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Aside from reducing source code, on systems which use MEM_LIBC_MALLOC,
this has the potential to improve performance depending on the underlying
memory allocator

See http://stackoverflow.com/questions/2688466/why-mallocmemset-is-slower-than-calloc
This commit is contained in:
Joel Cunningham
2017-04-05 13:38:20 -05:00
parent b34f2d5605
commit 557a11047d
6 changed files with 9 additions and 24 deletions
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3
src/core/ipv4/autoip.c
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@@ -270,13 +270,12 @@ autoip_start(struct netif *netif)
/* no AutoIP client attached yet? */
LWIP_DEBUGF(AUTOIP_DEBUG | LWIP_DBG_TRACE,
("autoip_start(): starting new AUTOIP client\n"));
autoip = (struct autoip *)mem_malloc(sizeof(struct autoip));
autoip = (struct autoip *)mem_calloc(1, sizeof(struct autoip));
if (autoip == NULL) {
LWIP_DEBUGF(AUTOIP_DEBUG | LWIP_DBG_TRACE,
("autoip_start(): could not allocate autoip\n"));
return ERR_MEM;
}
memset(autoip, 0, sizeof(struct autoip));
/* store this AutoIP client in the netif */
netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_AUTOIP, autoip);
LWIP_DEBUGF(AUTOIP_DEBUG | LWIP_DBG_TRACE, ("autoip_start(): allocated autoip"));