From: Stephen Hemminger <stephen@networkplumber.org>
To: dev@dpdk.org
Cc: Stephen Hemminger <stephen@networkplumber.org>,
Vladimir Medvedkin <vladimir.medvedkin@intel.com>
Subject: [PATCH 1/2] rib: mark error checks with unlikely
Date: Tue, 12 Apr 2022 19:09:33 -0700 [thread overview]
Message-ID: <20220413020935.90499-2-stephen@networkplumber.org> (raw)
In-Reply-To: <20220413020935.90499-1-stephen@networkplumber.org>
Also mark some conditional functions as const.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
lib/rib/rte_rib.c | 26 +++++++++++++-------------
1 file changed, 13 insertions(+), 13 deletions(-)
diff --git a/lib/rib/rte_rib.c b/lib/rib/rte_rib.c
index cd9e823068d2..2a3de5065a31 100644
--- a/lib/rib/rte_rib.c
+++ b/lib/rib/rte_rib.c
@@ -48,13 +48,13 @@ struct rte_rib {
};
static inline bool
-is_valid_node(struct rte_rib_node *node)
+is_valid_node(const struct rte_rib_node *node)
{
return (node->flag & RTE_RIB_VALID_NODE) == RTE_RIB_VALID_NODE;
}
static inline bool
-is_right_node(struct rte_rib_node *node)
+is_right_node(const struct rte_rib_node *node)
{
return node->parent->right == node;
}
@@ -99,7 +99,7 @@ rte_rib_lookup(struct rte_rib *rib, uint32_t ip)
{
struct rte_rib_node *cur, *prev = NULL;
- if (rib == NULL) {
+ if (unlikely(rib == NULL)) {
rte_errno = EINVAL;
return NULL;
}
@@ -147,7 +147,7 @@ __rib_lookup_exact(struct rte_rib *rib, uint32_t ip, uint8_t depth)
struct rte_rib_node *
rte_rib_lookup_exact(struct rte_rib *rib, uint32_t ip, uint8_t depth)
{
- if ((rib == NULL) || (depth > RIB_MAXDEPTH)) {
+ if (unlikely(rib == NULL || depth > RIB_MAXDEPTH)) {
rte_errno = EINVAL;
return NULL;
}
@@ -167,7 +167,7 @@ rte_rib_get_nxt(struct rte_rib *rib, uint32_t ip,
{
struct rte_rib_node *tmp, *prev = NULL;
- if ((rib == NULL) || (depth > RIB_MAXDEPTH)) {
+ if (unlikely(rib == NULL || depth > RIB_MAXDEPTH)) {
rte_errno = EINVAL;
return NULL;
}
@@ -244,7 +244,7 @@ rte_rib_insert(struct rte_rib *rib, uint32_t ip, uint8_t depth)
uint32_t common_prefix;
uint8_t common_depth;
- if ((rib == NULL) || (depth > RIB_MAXDEPTH)) {
+ if (unlikely(rib == NULL || depth > RIB_MAXDEPTH)) {
rte_errno = EINVAL;
return NULL;
}
@@ -342,7 +342,7 @@ rte_rib_insert(struct rte_rib *rib, uint32_t ip, uint8_t depth)
int
rte_rib_get_ip(const struct rte_rib_node *node, uint32_t *ip)
{
- if ((node == NULL) || (ip == NULL)) {
+ if (unlikely(node == NULL || ip == NULL)) {
rte_errno = EINVAL;
return -1;
}
@@ -353,7 +353,7 @@ rte_rib_get_ip(const struct rte_rib_node *node, uint32_t *ip)
int
rte_rib_get_depth(const struct rte_rib_node *node, uint8_t *depth)
{
- if ((node == NULL) || (depth == NULL)) {
+ if (unlikely(node == NULL || depth == NULL)) {
rte_errno = EINVAL;
return -1;
}
@@ -370,7 +370,7 @@ rte_rib_get_ext(struct rte_rib_node *node)
int
rte_rib_get_nh(const struct rte_rib_node *node, uint64_t *nh)
{
- if ((node == NULL) || (nh == NULL)) {
+ if (unlikely(node == NULL || nh == NULL)) {
rte_errno = EINVAL;
return -1;
}
@@ -381,7 +381,7 @@ rte_rib_get_nh(const struct rte_rib_node *node, uint64_t *nh)
int
rte_rib_set_nh(struct rte_rib_node *node, uint64_t nh)
{
- if (node == NULL) {
+ if (unlikely(node == NULL)) {
rte_errno = EINVAL;
return -1;
}
@@ -399,7 +399,7 @@ rte_rib_create(const char *name, int socket_id, const struct rte_rib_conf *conf)
struct rte_mempool *node_pool;
/* Check user arguments. */
- if (name == NULL || conf == NULL || conf->max_nodes <= 0) {
+ if (unlikely(name == NULL || conf == NULL || conf->max_nodes <= 0)) {
rte_errno = EINVAL;
return NULL;
}
@@ -434,7 +434,7 @@ rte_rib_create(const char *name, int socket_id, const struct rte_rib_conf *conf)
/* allocate tailq entry */
te = rte_zmalloc("RIB_TAILQ_ENTRY", sizeof(*te), 0);
- if (te == NULL) {
+ if (unlikely(te == NULL)) {
RTE_LOG(ERR, LPM,
"Can not allocate tailq entry for RIB %s\n", name);
rte_errno = ENOMEM;
@@ -444,7 +444,7 @@ rte_rib_create(const char *name, int socket_id, const struct rte_rib_conf *conf)
/* Allocate memory to store the RIB data structures. */
rib = rte_zmalloc_socket(mem_name,
sizeof(struct rte_rib), RTE_CACHE_LINE_SIZE, socket_id);
- if (rib == NULL) {
+ if (unlikely(rib == NULL)) {
RTE_LOG(ERR, LPM, "RIB %s memory allocation failed\n", name);
rte_errno = ENOMEM;
goto free_te;
--
2.35.1
next prev parent reply other threads:[~2022-04-13 2:09 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-13 2:09 [PATCH 0/2] small RIB optimizations Stephen Hemminger
2022-04-13 2:09 ` Stephen Hemminger [this message]
2022-04-26 14:27 ` [PATCH 1/2] rib: mark error checks with unlikely Medvedkin, Vladimir
2022-04-13 2:09 ` [PATCH 2/2] rib6: mark error tests " Stephen Hemminger
2022-04-26 14:27 ` Medvedkin, Vladimir
2022-04-13 6:45 ` [PATCH 0/2] small RIB optimizations Morten Brørup
2022-06-01 8:58 ` Thomas Monjalon
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20220413020935.90499-2-stephen@networkplumber.org \
--to=stephen@networkplumber.org \
--cc=dev@dpdk.org \
--cc=vladimir.medvedkin@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).