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From: Stephen Hemminger <stephen@networkplumber.org>
To: dev@dpdk.org
Cc: Stephen Hemminger <stephen@networkplumber.org>,
Reshma Pattan <reshma.pattan@intel.com>
Subject: [PATCH v4 6/6] latencystats: fix for pedantic warnings
Date: Fri, 19 Apr 2024 10:28:26 -0700
Message-ID: <20240419172926.55447-7-stephen@networkplumber.org>
X-Mailer: git-send-email 2.43.0
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<20240419172926.55447-1-stephen@networkplumber.org>
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ISO C does not allow casting function pointer to void *.
Resolve by enforcing the reserved argument.
The user_cb argument for rte_latencystats_init() was not
implemented, and had to be NULL anyway.
The log type is local to this function and RTE_LOG_REGISTER_DEFAULT
alread has a semicolon. So adding one here causes a warning
if compiler is set to pedantic.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
lib/latencystats/rte_latencystats.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/lib/latencystats/rte_latencystats.c b/lib/latencystats/rte_latencystats.c
index 5db896ac7b..f60c893199 100644
--- a/lib/latencystats/rte_latencystats.c
+++ b/lib/latencystats/rte_latencystats.c
@@ -29,7 +29,7 @@
static double cycles_per_ns;
-RTE_LOG_REGISTER_DEFAULT(latencystat_logtype, INFO);
+static RTE_LOG_REGISTER_DEFAULT(latencystat_logtype, INFO)
#define RTE_LOGTYPE_LATENCY_STATS latencystat_logtype
#define LATENCY_STATS_LOG(level, ...) \
RTE_LOG_LINE(level, LATENCY_STATS, "" __VA_ARGS__)
@@ -229,6 +229,10 @@ rte_latencystats_init(uint64_t app_samp_intvl,
if (rte_memzone_lookup(MZ_RTE_LATENCY_STATS))
return -EEXIST;
+ /** Reserved for possible future use */
+ if (user_cb != NULL)
+ return -ENOTSUP;
+
/** Allocate stats in shared memory fo multi process support */
mz = rte_memzone_reserve(MZ_RTE_LATENCY_STATS, sizeof(*glob_stats),
rte_socket_id(), flags);
@@ -281,7 +285,7 @@ rte_latencystats_init(uint64_t app_samp_intvl,
for (qid = 0; qid < dev_info.nb_rx_queues; qid++) {
cbs = &rx_cbs[pid][qid];
cbs->cb = rte_eth_add_first_rx_callback(pid, qid,
- add_time_stamps, user_cb);
+ add_time_stamps, NULL);
if (!cbs->cb)
LATENCY_STATS_LOG(NOTICE,
"Failed to register Rx callback for pid=%u, qid=%u",
@@ -290,7 +294,7 @@ rte_latencystats_init(uint64_t app_samp_intvl,
for (qid = 0; qid < dev_info.nb_tx_queues; qid++) {
cbs = &tx_cbs[pid][qid];
cbs->cb = rte_eth_add_tx_callback(pid, qid,
- calc_latency, user_cb);
+ calc_latency, NULL);
if (!cbs->cb)
LATENCY_STATS_LOG(NOTICE,
"Failed to register Tx callback for pid=%u, qid=%u",
--
2.43.0