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build: add -Wimplicit-fallthrough

Browse source 
Also:
- replace all /* fallthrough */ comments with portable fallthrough;
pseudo keyword to accomodate both gcc and clang
- add missing break; statements as required by older versions of gcc
- cleanup some code to remove unnecessary fallthrough

Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
This commit is contained in:
Igor Ryzhov 2023-10-11 00:15:32 +03:00
parent 9bc4d9eaec
commit 7d67b9ff28
48 changed files with 114 additions and 110 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
bgpd/bgp_aspath.c
View file

@ -1892,7 +1892,7 @@ struct aspath *aspath_reconcile_as4(struct aspath *aspath,
"[AS4] AS4PATHmangle: AS_CONFED_SEQUENCE falls across 2/4 ASN boundary somewhere, broken..");
hops = seg->length;
}
/* fallthru */
fallthrough;
case AS_SEQUENCE:
cpasns = MIN(seg->length, hops);
hops -= seg->length;

5
bgpd/bgp_attr.c
View file

@ -2323,11 +2323,8 @@ int bgp_mp_reach_parse(struct bgp_attr_parser_args *args,
/*
* NOTE: intentional fall through
* - for consistency in rx processing
*
* The following comment is to signal GCC this intention
* and suppress the warning
*/
/* FALLTHRU */
fallthrough;
case BGP_ATTR_NHLEN_IPV4:
stream_get(&attr->mp_nexthop_global_in, s, IPV4_MAX_BYTELEN);
/* Probably needed for RFC 2283 */

1
bgpd/bgp_clist.c
View file

@ -128,6 +128,7 @@ static void community_entry_free(struct community_entry *entry)
XFREE(MTYPE_COMMUNITY_LIST_CONFIG, entry->config);
if (entry->reg)
bgp_regex_free(entry->reg);
break;
default:
break;
}

3
bgpd/bgp_fsm.c
View file

@ -445,7 +445,7 @@ void bgp_timer_set(struct peer_connection *connection)
EVENT_OFF(peer->connection->t_pmax_restart);
EVENT_OFF(peer->t_refresh_stalepath);
/* fallthru */
fallthrough;
case Clearing:
EVENT_OFF(connection->t_start);
EVENT_OFF(connection->t_connect);
@ -2384,6 +2384,7 @@ void bgp_fsm_nht_update(struct peer_connection *connection, struct peer *peer,
&& (peer->gtsm_hops == BGP_GTSM_HOPS_CONNECTED
|| peer->bgp->fast_convergence))
BGP_EVENT_ADD(connection, TCP_fatal_error);
break;
case Clearing:
case Deleted:
case BGP_STATUS_MAX:

1
bgpd/bgp_open.c
View file

@ -1028,6 +1028,7 @@ static int bgp_capability_parse(struct peer *peer, size_t length,
BGP_NOTIFY_OPEN_MALFORMED_ATTR);
return -1;
}
break;
/* we deliberately ignore unknown codes, see below */
default:
break;

2
bgpd/bgp_routemap_nb_config.c
View file

@ -1747,7 +1747,7 @@ int lib_route_map_entry_set_action_rmap_set_action_ipv6_address_modify(
|| IN6_IS_ADDR_LINKLOCAL(&i6a))
return NB_ERR_VALIDATION;
}
/* FALLTHROUGH */
return NB_OK;
case NB_EV_PREPARE:
case NB_EV_ABORT:
return NB_OK;

1
bgpd/bgpd.c
View file

@ -186,7 +186,6 @@ int bgp_option_set(int flag)
int bgp_option_unset(int flag)
{
switch (flag) {
/* Fall through. */
case BGP_OPT_NO_ZEBRA:
case BGP_OPT_NO_FIB:
UNSET_FLAG(bm->options, flag);

7
bgpd/rfapi/bgp_rfapi_cfg.c
View file

@ -1720,7 +1720,8 @@ DEFUN (vnc_nve_group_export_no_routemap,
switch (argv[idx]->text[0]) {
case 'z':
is_bgp = 0;
/* fall thru */
idx += 2;
break;
case 'b':
idx += 2;
break;
@ -3590,7 +3591,9 @@ DEFUN (vnc_l2_group_rt,
switch (argv[1]->arg[0]) {
case 'b':
do_export = 1; /* fall through */
do_export = 1;
do_import = 1;
break;
case 'i':
do_import = 1;
break;

1
bgpd/rfapi/rfapi_vty.c
View file

@ -4151,6 +4151,7 @@ static int rfapi_vty_show_nve_summary(struct vty *vty,
case SHOW_NVE_SUMMARY_RESPONSES:
rfapiRibShowResponsesSummary(vty);
break;
case SHOW_NVE_SUMMARY_UNKNOWN_NVES:
case SHOW_NVE_SUMMARY_MAX:

1
configure.ac
View file

@ -365,6 +365,7 @@ AC_C_FLAG([-Wpointer-arith])
AC_C_FLAG([-Wbad-function-cast])
AC_C_FLAG([-Wwrite-strings])
AC_C_FLAG([-Wundef])
AC_C_FLAG([-Wimplicit-fallthrough])
if test "$enable_gcc_ultra_verbose" = "yes" ; then
AC_C_FLAG([-Wcast-qual])
AC_C_FLAG([-Wmissing-noreturn])

4
ldpd/init.c
View file

@ -229,7 +229,7 @@ send_capability(struct nbr *nbr, uint16_t capability, int enable)
* Announcement Parameter in Capability messages sent to
* its peers".
*/
/* FALLTHROUGH */
fallthrough;
default:
fatalx("send_capability: unsupported capability");
}
@ -333,7 +333,7 @@ recv_capability(struct nbr *nbr, char *buf, uint16_t len)
* parameter and process any other Capability Parameters
* in the message".
*/
/* FALLTHROUGH */
fallthrough;
default:
if (!CHECK_FLAG(ntohs(tlv.type), UNKNOWN_FLAG))
send_notification_rtlvs(nbr, S_UNSSUPORTDCAP,

2
ldpd/ldp_vty_exec.c
View file

@ -1106,7 +1106,7 @@ show_lib_msg(struct vty *vty, struct imsg *imsg, struct show_params *params)
if (params->lib.remote_label != NO_LABEL &&
params->lib.remote_label != rt->remote_label)
return (0);
/* FALLTHROUGH */
fallthrough;
case IMSG_CTL_SHOW_LIB_RCVD:
rt = imsg->data;

15
ldpd/neighbor.c
View file

@ -505,21 +505,12 @@ nbr_start_idtimer(struct nbr *nbr)
{
int secs;
secs = INIT_DELAY_TMR;
switch(nbr->idtimer_cnt) {
default:
if (nbr->idtimer_cnt > 2) {
/* do not further increase the counter */
secs = MAX_DELAY_TMR;
break;
case 2:
secs *= 2;
/* FALLTHROUGH */
case 1:
secs *= 2;
/* FALLTHROUGH */
case 0:
} else {
secs = INIT_DELAY_TMR * (1 << nbr->idtimer_cnt);
nbr->idtimer_cnt++;
break;
}
EVENT_OFF(nbr->initdelay_timer);

13
lib/base64.c
View file

@ -9,6 +9,7 @@
#endif
#include "base64.h"
#include "compiler.h"
static const int CHARS_PER_LINE = 72;
static const char *ENCODING =
@ -41,6 +42,7 @@ int base64_encode_block(const char *plaintext_in, int length_in, char *code_out,
switch (state_in->step) {
while (1) {
fallthrough;
case step_A:
if (plainchar == plaintextend) {
state_in->result = result;
@ -51,7 +53,7 @@ int base64_encode_block(const char *plaintext_in, int length_in, char *code_out,
result = (fragment & 0x0fc) >> 2;
*codechar++ = base64_encode_value(result);
result = (fragment & 0x003) << 4;
/* fall through */
fallthrough;
case step_B:
if (plainchar == plaintextend) {
state_in->result = result;
@ -62,7 +64,7 @@ int base64_encode_block(const char *plaintext_in, int length_in, char *code_out,
result |= (fragment & 0x0f0) >> 4;
*codechar++ = base64_encode_value(result);
result = (fragment & 0x00f) << 2;
/* fall through */
fallthrough;
case step_C:
if (plainchar == plaintextend) {
state_in->result = result;
@ -146,6 +148,7 @@ int base64_decode_block(const char *code_in, int length_in, char *plaintext_out,
switch (state_in->step) {
while (1) {
fallthrough;
case step_a:
do {
if (codec == code_in+length_in) {
@ -156,7 +159,7 @@ int base64_decode_block(const char *code_in, int length_in, char *plaintext_out,
fragmt = base64_decode_value(*codec++);
} while (fragmt < 0);
*plainc = (fragmt & 0x03f) << 2;
/* fall through */
fallthrough;
case step_b:
do {
if (codec == code_in+length_in) {
@ -168,7 +171,7 @@ int base64_decode_block(const char *code_in, int length_in, char *plaintext_out,
} while (fragmt < 0);
*plainc++ |= (fragmt & 0x030) >> 4;
*plainc = (fragmt & 0x00f) << 4;
/* fall through */
fallthrough;
case step_c:
do {
if (codec == code_in+length_in) {
@ -180,7 +183,7 @@ int base64_decode_block(const char *code_in, int length_in, char *plaintext_out,
} while (fragmt < 0);
*plainc++ |= (fragmt & 0x03c) >> 2;
*plainc = (fragmt & 0x003) << 6;
/* fall through */
fallthrough;
case step_d:
do {
if (codec == code_in+length_in) {

4
lib/command_match.c
View file

@ -405,10 +405,10 @@ enum matcher_rv command_complete(struct graph *graph, vector vline,
listnode_add(next, newstack);
break;
case partly_match:
trace_matcher("trivial_match\n");
trace_matcher("partly_match\n");
if (exact_match_exists && !last_token)
break;
/* fallthru */
fallthrough;
case exact_match:
trace_matcher("exact_match\n");
if (last_token) {

8
lib/compiler.h
View file

@ -33,7 +33,7 @@ extern "C" {
# define _RET_NONNULL , returns_nonnull
#endif
#if __has_attribute(fallthrough)
# define _FALLTHROUGH __attribute__((fallthrough));
# define fallthrough __attribute__((fallthrough));
#endif
# define _CONSTRUCTOR(x) constructor(x)
# define _DEPRECATED(x) deprecated(x)
@ -57,7 +57,7 @@ extern "C" {
# define __has_attribute(x) 0
#endif
#if __GNUC__ >= 7
# define _FALLTHROUGH __attribute__((fallthrough));
# define fallthrough __attribute__((fallthrough));
#endif
#endif
@ -112,8 +112,8 @@ extern "C" {
#ifndef _ALLOC_SIZE
# define _ALLOC_SIZE(x)
#endif
#ifndef _FALLTHROUGH
#define _FALLTHROUGH
#ifndef fallthrough
#define fallthrough
#endif
#ifndef _DEPRECATED
#define _DEPRECATED(x) deprecated

22
lib/jhash.c
View file

@ -86,34 +86,34 @@ uint32_t jhash(const void *key, uint32_t length, uint32_t initval)
switch (len) {
case 11:
c += ((uint32_t)k[10] << 24);
/* fallthru */
fallthrough;
case 10:
c += ((uint32_t)k[9] << 16);
/* fallthru */
fallthrough;
case 9:
c += ((uint32_t)k[8] << 8);
/* fallthru */
fallthrough;
case 8:
b += ((uint32_t)k[7] << 24);
/* fallthru */
fallthrough;
case 7:
b += ((uint32_t)k[6] << 16);
/* fallthru */
fallthrough;
case 6:
b += ((uint32_t)k[5] << 8);
/* fallthru */
fallthrough;
case 5:
b += k[4];
/* fallthru */
fallthrough;
case 4:
a += ((uint32_t)k[3] << 24);
/* fallthru */
fallthrough;
case 3:
a += ((uint32_t)k[2] << 16);
/* fallthru */
fallthrough;
case 2:
a += ((uint32_t)k[1] << 8);
/* fallthru */
fallthrough;
case 1:
a += k[0];
}
@ -148,7 +148,7 @@ uint32_t jhash2(const uint32_t *k, uint32_t length, uint32_t initval)
switch (len) {
case 2:
b += k[1];
/* fallthru */
fallthrough;
case 1:
a += k[0];
}

3
lib/libfrr.c
View file

@ -218,7 +218,8 @@ bool frr_zclient_addr(struct sockaddr_storage *sa, socklen_t *sa_len,
break;
case '6':
path++;
/* fallthrough */
af = AF_INET6;
break;
default:
af = AF_INET6;
break;

4
lib/nexthop.c
View file

@ -173,7 +173,7 @@ static int _nexthop_cmp_no_labels(const struct nexthop *next1,
ret = _nexthop_gateway_cmp(next1, next2);
if (ret != 0)
return ret;
/* Intentional Fall-Through */
fallthrough;
case NEXTHOP_TYPE_IFINDEX:
if (next1->ifindex < next2->ifindex)
return -1;
@ -295,7 +295,7 @@ int nexthop_cmp_basic(const struct nexthop *nh1,
ret = nexthop_g_addr_cmp(nh1->type, &nh1->gate, &nh2->gate);
if (ret != 0)
return ret;
/* Intentional Fall-Through */
fallthrough;
case NEXTHOP_TYPE_IFINDEX:
if (nh1->ifindex < nh2->ifindex)
return -1;

2
lib/nexthop_group.c
View file

@ -180,7 +180,7 @@ static struct nexthop *nhg_nh_find(const struct nexthop_group *nhg,
&nexthop->gate, &nh->gate);
if (ret != 0)
continue;
/* Intentional Fall-Through */
fallthrough;
case NEXTHOP_TYPE_IFINDEX:
if (nexthop->ifindex != nh->ifindex)
continue;

20
lib/printf/printf-pos.c
View file

@ -355,7 +355,7 @@ reswitch: switch (ch) {
goto rflag;
case 'C':
flags |= LONGINT;
/*FALLTHROUGH*/
fallthrough;
case 'c':
error = addtype(&types,
(flags & LONGINT) ? T_WINT : T_INT);
@ -364,7 +364,7 @@ reswitch: switch (ch) {
break;
case 'D':
flags |= LONGINT;
/*FALLTHROUGH*/
fallthrough;
case 'd':
case 'i':
if ((error = addsarg(&types, flags)))
@ -408,7 +408,7 @@ reswitch: switch (ch) {
#endif
case 'O':
flags |= LONGINT;
/*FALLTHROUGH*/
fallthrough;
case 'o':
if ((error = adduarg(&types, flags)))
goto error;
@ -419,7 +419,7 @@ reswitch: switch (ch) {
break;
case 'S':
flags |= LONGINT;
/*FALLTHROUGH*/
fallthrough;
case 's':
error = addtype(&types,
(flags & LONGINT) ? TP_WCHAR : TP_CHAR);
@ -428,7 +428,7 @@ reswitch: switch (ch) {
break;
case 'U':
flags |= LONGINT;
/*FALLTHROUGH*/
fallthrough;
case 'u':
case 'X':
case 'x':
@ -549,7 +549,7 @@ reswitch: switch (ch) {
goto rflag;
case 'C':
flags |= LONGINT;
/*FALLTHROUGH*/
fallthrough;
case 'c':
error = addtype(&types,
(flags & LONGINT) ? T_WINT : T_INT);
@ -558,7 +558,7 @@ reswitch: switch (ch) {
break;
case 'D':
flags |= LONGINT;
/*FALLTHROUGH*/
fallthrough;
case 'd':
case 'i':
if ((error = addsarg(&types, flags)))
@ -602,7 +602,7 @@ reswitch: switch (ch) {
#endif
case 'O':
flags |= LONGINT;
/*FALLTHROUGH*/
fallthrough;
case 'o':
if ((error = adduarg(&types, flags)))
goto error;
@ -613,7 +613,7 @@ reswitch: switch (ch) {
break;
case 'S':
flags |= LONGINT;
/*FALLTHROUGH*/
fallthrough;
case 's':
error = addtype(&types,
(flags & LONGINT) ? TP_WCHAR : TP_CHAR);
@ -622,7 +622,7 @@ reswitch: switch (ch) {
break;
case 'U':
flags |= LONGINT;
/*FALLTHROUGH*/
fallthrough;
case 'u':
case 'X':
case 'x':

12
lib/printf/vfprintf.c
View file

@ -340,7 +340,7 @@ reswitch: switch (ch) {
if (width >= 0)
goto rflag;
width = -width;
/* FALLTHROUGH */
fallthrough;
case '-':
flags |= LADJUST;
goto rflag;
@ -434,7 +434,7 @@ reswitch: switch (ch) {
break;
case 'C':
flags |= LONGINT;
/*FALLTHROUGH*/
fallthrough;
case 'c':
#ifdef WCHAR_SUPPORT
if (flags & LONGINT) {
@ -460,7 +460,7 @@ reswitch: switch (ch) {
break;
case 'D':
flags |= LONGINT;
/*FALLTHROUGH*/
fallthrough;
case 'd':
case 'i':
if (flags & INTMAX_SIZE)
@ -551,7 +551,7 @@ reswitch: switch (ch) {
break;
case 'O':
flags |= LONGINT;
/*FALLTHROUGH*/
fallthrough;
case 'o':
if (flags & INTMAX_SIZE)
ujval = UJARG();
@ -595,7 +595,7 @@ reswitch: switch (ch) {
goto nosign;
case 'S':
flags |= LONGINT;
/*FALLTHROUGH*/
fallthrough;
case 's':
#ifdef WCHAR_SUPPORT
if (flags & LONGINT) {
@ -621,7 +621,7 @@ reswitch: switch (ch) {
break;
case 'U':
flags |= LONGINT;
/*FALLTHROUGH*/
fallthrough;
case 'u':
if (flags & INTMAX_SIZE)
ujval = UJARG();

5
lib/routemap_northbound.c
View file

@ -364,7 +364,6 @@ lib_route_map_entry_exit_policy_modify(struct nb_cb_modify_args *args)
case 0: /* permit-or-deny */
break;
case 1: /* next */
/* FALLTHROUGH */
case 2: /* goto */
rm_action =
yang_dnode_get_enum(args->dnode, "../action");
@ -885,7 +884,7 @@ static int lib_route_map_entry_set_action_ipv4_address_modify(
yang_dnode_get_ipv4(&ia, args->dnode, NULL);
if (ia.s_addr == INADDR_ANY || !ipv4_unicast_valid(&ia))
return NB_ERR_VALIDATION;
/* FALLTHROUGH */
return NB_OK;
case NB_EV_PREPARE:
case NB_EV_ABORT:
return NB_OK;
@ -944,7 +943,7 @@ static int lib_route_map_entry_set_action_ipv6_address_modify(
yang_dnode_get_ipv6(&i6a, args->dnode, NULL);
if (!IN6_IS_ADDR_LINKLOCAL(&i6a))
return NB_ERR_VALIDATION;
/* FALLTHROUGH */
return NB_OK;
case NB_EV_PREPARE:
case NB_EV_ABORT:
return NB_OK;

2
lib/vty.c
View file

@ -1565,7 +1565,7 @@ static void vty_read(struct event *thread)
break;
case '\r':
vty->escape = VTY_CR;
/* fallthru */
fallthrough;
case '\n':
vty_out(vty, "\n");
buffer_flush_available(vty->obuf, vty->wfd);

10
lib/workqueue.c
View file

@ -271,9 +271,10 @@ void work_queue_run(struct event *thread)
switch (ret) {
case WQ_QUEUE_BLOCKED: {
/* decrement item->ran again, cause this isn't an item
* specific error, and fall through to WQ_RETRY_LATER
* specific error, and retry later
*/
item->ran--;
goto stats;
}
case WQ_RETRY_LATER: {
goto stats;
@ -296,9 +297,10 @@ void work_queue_run(struct event *thread)
break;
}
case WQ_RETRY_NOW:
/* a RETRY_NOW that gets here has exceeded max_tries, same as
* ERROR */
/* fallthru */
/* a RETRY_NOW that gets here has exceeded max_tries, same
* as ERROR
*/
fallthrough;
case WQ_SUCCESS:
default: {
work_queue_item_remove(wq, item);

2
lib/zclient.c
View file

@ -891,7 +891,7 @@ static int zapi_nexthop_cmp_no_labels(const struct zapi_nexthop *next1,
&next2->gate);
if (ret != 0)
return ret;
/* Intentional Fall-Through */
fallthrough;
case NEXTHOP_TYPE_IFINDEX:
if (next1->ifindex < next2->ifindex)
return -1;

2
lib/zlog_5424.c
View file

@ -913,7 +913,7 @@ static int zlog_5424_open(struct zlog_cfg_5424 *zcf, int sock_type)
}
flags = O_NONBLOCK;
/* fallthru */
fallthrough;
case ZLOG_5424_DST_FILE:
if (!zcf->filename)

2
nhrpd/nhrp_packet.c
View file

@ -270,7 +270,7 @@ int nhrp_ext_reply(struct zbuf *zb, struct nhrp_packet_header *hdr,
default:
if (type & NHRP_EXTENSION_FLAG_COMPULSORY)
goto err;
/* fallthru */
fallthrough;
case NHRP_EXTENSION_FORWARD_TRANSIT_NHS:
case NHRP_EXTENSION_REVERSE_TRANSIT_NHS:
/* Supported compulsory extensions, and any

6
nhrpd/nhrp_peer.c
View file

@ -139,7 +139,7 @@ static void nhrp_peer_ifp_notify(struct notifier_block *n, unsigned long cmd)
nhrp_peer_vc_notify);
__nhrp_peer_check(p);
}
/* fallthru */ /* to post config update */
fallthrough; /* to post config update */
case NOTIFY_INTERFACE_ADDRESS_CHANGED:
notifier_call(&p->notifier_list, NOTIFY_PEER_IFCONFIG_CHANGED);
break;
@ -1050,7 +1050,7 @@ static void nhrp_peer_forward(struct nhrp_peer *p,
* append our selves to the transit NHS list
*/
goto err;
/* fallthru */
fallthrough;
case NHRP_EXTENSION_RESPONDER_ADDRESS:
/* Supported compulsory extensions, and any
* non-compulsory that is not explicitly handled,
@ -1220,7 +1220,7 @@ void nhrp_peer_recv(struct nhrp_peer *p, struct zbuf *zb)
/* FIXME: send error-indication */
}
}
/* fallthru */ /* FIXME: double check, is this correct? */
fallthrough; /* FIXME: double check, is this correct? */
case NHRP_ROUTE_OFF_NBMA:
if (packet_types[hdr->type].handler) {
packet_types[hdr->type].handler(&pp);

12
ospf6d/ospf6_message.c
View file

@ -631,8 +631,8 @@ static void ospf6_dbdesc_recv_master(struct ospf6_header *oh,
"Neighbor state is not ExStart, ignore");
return;
}
/* else fall through to ExStart */
/* fallthru */
/* else fall through to ExStart */
fallthrough;
case OSPF6_NEIGHBOR_EXSTART:
/* if neighbor obeys us as our slave, schedule negotiation_done
and process LSA Headers. Otherwise, ignore this message */
@ -650,8 +650,8 @@ static void ospf6_dbdesc_recv_master(struct ospf6_header *oh,
on->ospf6_if->interface->vrf->name, on->name);
return;
}
/* fall through to exchange */
/* fall through to exchange */
fallthrough;
case OSPF6_NEIGHBOR_EXCHANGE:
if (!memcmp(dbdesc, &on->dbdesc_last,
sizeof(struct ospf6_dbdesc))) {
@ -835,8 +835,8 @@ static void ospf6_dbdesc_recv_slave(struct ospf6_header *oh,
"Neighbor state is not ExStart, ignore");
return;
}
/* else fall through to ExStart */
/* fallthru */
/* else fall through to ExStart */
fallthrough;
case OSPF6_NEIGHBOR_EXSTART:
/* If the neighbor is Master, act as Slave. Schedule
negotiation_done

2
ospf6d/ospf6_route.c
View file

@ -363,7 +363,7 @@ void ospf6_route_zebra_copy_nexthops(struct ospf6_route *route,
case NEXTHOP_TYPE_IPV6_IFINDEX:
nexthops[i].ifindex = nh->ifindex;
/* FALLTHROUGH */
fallthrough;
case NEXTHOP_TYPE_IPV6:
nexthops[i].gate.ipv6 = nh->address;
break;

2
ospf6d/ospf6_route.h
View file

@ -67,7 +67,7 @@ static inline bool ospf6_nexthop_is_same(const struct ospf6_nexthop *nha,
case NEXTHOP_TYPE_IPV6_IFINDEX:
if (nha->ifindex != nhb->ifindex)
return false;
/* FALLTHROUGH */
fallthrough;
case NEXTHOP_TYPE_IPV6:
if (!IN6_ARE_ADDR_EQUAL(&nha->address, &nhb->address))
return false;

4
ospf6d/ospf6_snmp.c
View file

@ -697,8 +697,8 @@ static uint8_t *ospfv3GeneralGroup(struct variable *v, oid *name,
case OSPFv3REFERENCEBANDWIDTH:
if (ospf6)
return SNMP_INTEGER(ospf6->ref_bandwidth);
/* Otherwise, like for "not implemented". */
/* fallthru */
/* Otherwise, like for "not implemented". */
return NULL;
case OSPFv3RESTARTSUPPORT:
case OSPFv3RESTARTINTERVAL:
case OSPFv3RESTARTSTRICTLSACHECKING:

2
ospfd/ospf_flood.c
View file

@ -954,7 +954,7 @@ int ospf_flood_through(struct ospf *ospf, struct ospf_neighbor *inbr,
if (IS_DEBUG_OSPF_NSSA)
zlog_debug("%s: LOCAL NSSA FLOOD of Type-7.", __func__);
/* Fallthrough */
fallthrough;
default:
lsa_ack_flag = ospf_flood_through_area(lsa->area, inbr, lsa);
break;

2
ospfd/ospf_interface.c
View file

@ -1167,7 +1167,7 @@ static int ospf_vl_set_params(struct ospf_area *area,
if (IS_DEBUG_OSPF_EVENT)
zlog_debug(
"found back link through VL");
/* fallthru */
fallthrough;
case LSA_LINK_TYPE_TRANSIT:
case LSA_LINK_TYPE_POINTOPOINT:
if (!IPV4_ADDR_SAME(&vl_data->peer_addr,

3
ospfd/ospf_lsa.c
View file

@ -3096,13 +3096,14 @@ struct ospf_lsa *ospf_lsa_install(struct ospf *ospf, struct ospf_interface *oi,
/* Incoming "oi" for this LSA has set at LSUpd
* reception. */
}
/* Fallthrough */
fallthrough;
case OSPF_OPAQUE_AREA_LSA:
case OSPF_OPAQUE_AS_LSA:
new = ospf_opaque_lsa_install(lsa, rt_recalc);
break;
case OSPF_AS_NSSA_LSA:
new = ospf_external_lsa_install(ospf, lsa, rt_recalc);
break;
default: /* type-6,8,9....nothing special */
break;
}

2
ospfd/ospf_nsm.c
View file

@ -107,7 +107,7 @@ static void nsm_timer_set(struct ospf_neighbor *nbr)
case NSM_Down:
EVENT_OFF(nbr->t_inactivity);
EVENT_OFF(nbr->t_hello_reply);
/* fallthru */
fallthrough;
case NSM_Attempt:
case NSM_Init:
case NSM_TwoWay:

6
ospfd/ospf_packet.c
View file

@ -1042,7 +1042,7 @@ static void ospf_db_desc_proc(struct stream *s, struct ospf_interface *oi,
/* Neighbour has a more recent LSA, we must request it
*/
ospf_ls_request_add(nbr, new);
/* fallthru */
fallthrough;
case 0:
/* If we have a copy of this LSA, it's either less
* recent
@ -1231,7 +1231,7 @@ static void ospf_db_desc(struct ip *iph, struct ospf_header *ospfh,
through to case ExStart below. */
if (nbr->state != NSM_ExStart)
break;
/* fallthru */
fallthrough;
case NSM_ExStart:
/* Initial DBD */
if ((IS_SET_DD_ALL(dd->flags) == OSPF_DD_FLAG_ALL)
@ -1641,7 +1641,7 @@ static struct list *ospf_ls_upd_list_lsa(struct ospf_neighbor *nbr,
case OSPF_OPAQUE_LINK_LSA:
lsa->oi = oi; /* Remember incoming interface for
flooding control. */
/* Fallthrough */
fallthrough;
default:
lsa->area = oi->area;
break;

3
pbrd/pbr_nht.c
View file

@ -534,6 +534,7 @@ void pbr_nht_set_seq_nhg_data(struct pbr_map_sequence *pbrms,
case NEXTHOP_TYPE_IPV4:
case NEXTHOP_TYPE_IPV4_IFINDEX:
pbrms->family = AF_INET;
break;
case NEXTHOP_TYPE_IFINDEX:
case NEXTHOP_TYPE_BLACKHOLE:
break;
@ -889,7 +890,7 @@ static void pbr_nht_individual_nexthop_update(struct pbr_nexthop_cache *pnhc,
pbr_nht_individual_nexthop_interface_update(pnhc, pnhi);
break;
}
/* Intentional fall thru */
fallthrough;
case NEXTHOP_TYPE_IPV4_IFINDEX:
case NEXTHOP_TYPE_IPV4:
case NEXTHOP_TYPE_IPV6:

4
pimd/pim_nht.c
View file

@ -338,7 +338,7 @@ bool pim_nht_bsr_rpf_check(struct pim_instance *pim, pim_addr bsr_addr,
if (nh->ifindex == IFINDEX_INTERNAL)
continue;
/* fallthru */
fallthrough;
case NEXTHOP_TYPE_IPV4_IFINDEX:
nhaddr = nh->gate.ipv4;
break;
@ -350,7 +350,7 @@ bool pim_nht_bsr_rpf_check(struct pim_instance *pim, pim_addr bsr_addr,
if (nh->ifindex == IFINDEX_INTERNAL)
continue;
/* fallthru */
fallthrough;
case NEXTHOP_TYPE_IPV6_IFINDEX:
nhaddr = nh->gate.ipv6;
break;

2
tests/bgpd/test_capability.c
View file

@ -835,7 +835,7 @@ static void parse_test(struct peer *peer, struct test_segment *t, int type)
switch (type) {
case CAPABILITY:
len += 2; /* to cover the OPT-Param header */
_FALLTHROUGH
fallthrough;
case OPT_PARAM:
printf("len: %u\n", len);
/* peek_for_as4 wants getp at capibility*/

2
tools/frr-llvm-cg.c
View file

@ -231,7 +231,7 @@ static void walk_const_fptrs(struct json_object *js_call, LLVMValueRef value,
"%s: calls function pointer from unhandled const GEP\n",
prefix);
*hdr_written = true;
/* fallthru */
fallthrough;
default:
/* to help the user / development */
if (!*hdr_written) {

6
watchfrr/watchfrr.c
View file

@ -908,7 +908,7 @@ static void phase_check(void)
"Phased restart: all routing daemon stop jobs have completed.");
set_phase(PHASE_WAITING_DOWN);
/*FALLTHRU*/
fallthrough;
case PHASE_WAITING_DOWN:
if (gs.numdown + IS_UP(gs.special) < gs.numdaemons)
break;
@ -918,7 +918,7 @@ static void phase_check(void)
1);
set_phase(PHASE_ZEBRA_RESTART_PENDING);
/*FALLTHRU*/
fallthrough;
case PHASE_ZEBRA_RESTART_PENDING:
if (gs.special->restart.pid)
break;
@ -927,7 +927,7 @@ static void phase_check(void)
gs.special->name);
set_phase(PHASE_WAITING_ZEBRA_UP);
/*FALLTHRU*/
fallthrough;
case PHASE_WAITING_ZEBRA_UP:
if (!IS_UP(gs.special))
break;

2
zebra/dplane_fpm_nl.c
View file

@ -859,7 +859,7 @@ static int fpm_nl_enqueue(struct fpm_nl_ctx *fnc, struct zebra_dplane_ctx *ctx)
if (op == DPLANE_OP_ROUTE_DELETE)
break;
/* FALL THROUGH */
fallthrough;
case DPLANE_OP_ROUTE_INSTALL:
rv = netlink_route_multipath_msg_encode(RTM_NEWROUTE, ctx,
&nl_buf[nl_buf_len],

3
zebra/rt_netlink.c
View file

@ -366,7 +366,8 @@ static inline int proto2zebra(int proto, int family, bool is_nexthop)
proto = ZEBRA_ROUTE_NHG;
break;
}
/* Intentional fall thru */
proto = ZEBRA_ROUTE_KERNEL;
break;
default:
/*
* When a user adds a new protocol this will show up

1
zebra/zebra_mpls.c
View file

@ -1182,6 +1182,7 @@ static char *nhlfe2str(const struct zebra_nhlfe *nhlfe, char *buf, int size)
break;
case NEXTHOP_TYPE_IFINDEX:
snprintf(buf, size, "Ifindex: %u", nexthop->ifindex);
break;
case NEXTHOP_TYPE_BLACKHOLE:
break;
}

1
zebra/zebra_nhg.c
View file

@ -1310,6 +1310,7 @@ int nhg_ctx_process(struct nhg_ctx *ctx)
break;
case NHG_CTX_OP_DEL:
ret = nhg_ctx_process_del(ctx);
break;
case NHG_CTX_OP_NONE:
break;
}

3
zebra/zebra_rib.c
View file

@ -4082,7 +4082,6 @@ static void _route_entry_dump_nh(const struct route_entry *re,
ifp ? ifp->name : "Unknown");
break;
case NEXTHOP_TYPE_IPV4:
/* fallthrough */
case NEXTHOP_TYPE_IPV4_IFINDEX:
inet_ntop(AF_INET, &nexthop->gate, nhname, INET6_ADDRSTRLEN);
break;
@ -5043,7 +5042,7 @@ struct route_table *rib_tables_iter_next(rib_tables_iter_t *iter)
iter->vrf_id = VRF_DEFAULT;
iter->afi_safi_ix = -1;
/* Fall through */
fallthrough;
case RIB_TABLES_ITER_S_ITERATING:
iter->afi_safi_ix++;