From: Konstantin Ananyev <konstantin.v.ananyev@yandex.ru>
To: dev@dpdk.org
Cc: thomas@monjalon.net, ferruh.yigit@amd.com,
andrew.rybchenko@oktetlabs.ru, yipeng1.wang@intel.com,
sameh.gobriel@intel.com, bruce.richardson@intel.com,
vladimir.medvedkin@intel.com, honnappa.nagarahalli@arm.com,
roretzla@linux.microsoft.com,
Konstantin Ananyev <konstantin.ananyev@huawei.com>
Subject: [RFC 4/6] hash: remove VLA warnings
Date: Thu, 18 Apr 2024 11:33:12 +0100 [thread overview]
Message-ID: <20240418103314.40705-5-konstantin.v.ananyev@yandex.ru> (raw)
In-Reply-To: <20240418103314.40705-1-konstantin.v.ananyev@yandex.ru>
From: Konstantin Ananyev <konstantin.ananyev@huawei.com>
1) ./lib/hash/rte_cuckoo_hash.c:2362:9: warning: ISO C90 forbids variable length array ‘positions’ [-Wvla]
2) ../lib/hash/rte_cuckoo_hash.c:2478:9: warning: ISO C90 forbids variable length array ‘positions’ [-Wvla]
Both rte_hash_lookup_bulk_data() and
rte_hash_lookup_with_hash_bulk_data() expect
@num_keys <= RTE_HASH_LOOKUP_BULK_MAX.
So, for both cases it should be safe to replace VLA with fixed size
array.
Signed-off-by: Konstantin Ananyev <konstantin.ananyev@huawei.com>
---
lib/hash/rte_cuckoo_hash.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/lib/hash/rte_cuckoo_hash.c b/lib/hash/rte_cuckoo_hash.c
index 9cf94645f6..82b74bda18 100644
--- a/lib/hash/rte_cuckoo_hash.c
+++ b/lib/hash/rte_cuckoo_hash.c
@@ -2359,7 +2359,7 @@ rte_hash_lookup_bulk_data(const struct rte_hash *h, const void **keys,
(num_keys > RTE_HASH_LOOKUP_BULK_MAX) ||
(hit_mask == NULL)), -EINVAL);
- int32_t positions[num_keys];
+ int32_t positions[RTE_HASH_LOOKUP_BULK_MAX];
__rte_hash_lookup_bulk(h, keys, num_keys, positions, hit_mask, data);
@@ -2475,7 +2475,7 @@ rte_hash_lookup_with_hash_bulk_data(const struct rte_hash *h,
(num_keys > RTE_HASH_LOOKUP_BULK_MAX) ||
(hit_mask == NULL)), -EINVAL);
- int32_t positions[num_keys];
+ int32_t positions[RTE_HASH_LOOKUP_BULK_MAX];
__rte_hash_lookup_with_hash_bulk(h, keys, sig, num_keys,
positions, hit_mask, data);
--
2.35.3
next prev parent reply other threads:[~2024-04-18 10:33 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-18 10:33 [RFC 0/6] core libs: " Konstantin Ananyev
2024-04-18 10:33 ` [RFC 1/6] eal/linux: " Konstantin Ananyev
2024-04-19 12:23 ` Morten Brørup
2024-04-18 10:33 ` [RFC 2/6] eal/common: " Konstantin Ananyev
2024-04-19 11:54 ` Morten Brørup
2024-04-18 10:33 ` [RFC 3/6] ethdev: " Konstantin Ananyev
2024-04-19 12:06 ` Morten Brørup
2024-04-18 10:33 ` Konstantin Ananyev [this message]
2024-04-19 12:08 ` [RFC 4/6] hash: " Morten Brørup
2024-04-18 10:33 ` [RFC 5/6] hash/thash: " Konstantin Ananyev
2024-04-19 12:17 ` Morten Brørup
2024-04-19 12:53 ` Konstantin Ananyev
2024-04-19 13:10 ` Morten Brørup
2024-04-18 10:33 ` [RFC 6/6] rcu: " Konstantin Ananyev
2024-04-19 12:21 ` Morten Brørup
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