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| author | Denys Vlasenko | 2010-10-21 12:33:10 +0200 |
|---|---|---|
| committer | Denys Vlasenko | 2010-10-21 12:33:10 +0200 |
| commit | 0bb35e19a73ecbb9694172300a5530dbb8156bb4 (patch) | |
| tree | a6f0e38398ffaf4db6bfab8ce97584359dbc3f83 /networking/udhcp/dhcpc.c | |
| parent | 08187356d7f6a79d5fb4aa83b90476997e585ad3 (diff) | |
| download | busybox-0bb35e19a73ecbb9694172300a5530dbb8156bb4.zip busybox-0bb35e19a73ecbb9694172300a5530dbb8156bb4.tar.gz | |
udhcpd: reduce stack usage by ~700 bytes. +28 bytes code size
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
Diffstat (limited to 'networking/udhcp/dhcpc.c')
| -rw-r--r-- | networking/udhcp/dhcpc.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/networking/udhcp/dhcpc.c b/networking/udhcp/dhcpc.c index cef0ab9..78aabed 100644 --- a/networking/udhcp/dhcpc.c +++ b/networking/udhcp/dhcpc.c @@ -432,6 +432,7 @@ static int raw_bcast_from_client_config_ifindex(struct dhcp_packet *packet) } /* Broadcast a DHCP discover packet to the network, with an optionally requested IP */ +/* NOINLINE: limit stack usage in caller */ static NOINLINE int send_discover(uint32_t xid, uint32_t requested) { struct dhcp_packet packet; @@ -460,6 +461,7 @@ static NOINLINE int send_discover(uint32_t xid, uint32_t requested) /* RFC 2131 3.1 paragraph 3: * "The client _broadcasts_ a DHCPREQUEST message..." */ +/* NOINLINE: limit stack usage in caller */ static NOINLINE int send_select(uint32_t xid, uint32_t server, uint32_t requested) { struct dhcp_packet packet; @@ -500,7 +502,8 @@ static NOINLINE int send_select(uint32_t xid, uint32_t server, uint32_t requeste } /* Unicast or broadcast a DHCP renew message */ -static int send_renew(uint32_t xid, uint32_t server, uint32_t ciaddr) +/* NOINLINE: limit stack usage in caller */ +static NOINLINE int send_renew(uint32_t xid, uint32_t server, uint32_t ciaddr) { struct dhcp_packet packet; @@ -543,6 +546,7 @@ static int send_renew(uint32_t xid, uint32_t server, uint32_t ciaddr) #if ENABLE_FEATURE_UDHCPC_ARPING /* Broadcast a DHCP decline message */ +/* NOINLINE: limit stack usage in caller */ static NOINLINE int send_decline(uint32_t xid, uint32_t server, uint32_t requested) { struct dhcp_packet packet; @@ -588,6 +592,7 @@ static int send_release(uint32_t server, uint32_t ciaddr) } /* Returns -1 on errors that are fatal for the socket, -2 for those that aren't */ +/* NOINLINE: limit stack usage in caller */ static NOINLINE int udhcp_recv_raw_packet(struct dhcp_packet *dhcp_pkt, int fd) { int bytes; |