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| author | Arnd Bergmann <arnd@arndb.de> | 2024-04-04 18:36:45 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2024-04-08 11:03:05 +0100 |
| commit | e9d47b7b31563a6524b9f64ea70ed0289cc4d9c4 (patch) | |
| tree | cf5c61fc6a504b0209e302c6cd9e316543d0d949 /lib/checksum_kunit.c | |
| parent | bccb798e07f8bb8b91212fe8ed1e421685449076 (diff) | |
| download | lwn-e9d47b7b31563a6524b9f64ea70ed0289cc4d9c4.tar.gz lwn-e9d47b7b31563a6524b9f64ea70ed0289cc4d9c4.zip | |
lib: checksum: hide unused expected_csum_ipv6_magic[]
When CONFIG_NET is disabled, an extra warning shows up for this
unused variable:
lib/checksum_kunit.c:218:18: error: 'expected_csum_ipv6_magic' defined but not used [-Werror=unused-const-variable=]
Replace the #ifdef with an IS_ENABLED() check that makes the compiler's
dead-code-elimination take care of the link failure.
Fixes: f24a70106dc1 ("lib: checksum: Fix build with CONFIG_NET=n")
Suggested-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Simon Horman <horms@kernel.org> # build-tested
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'lib/checksum_kunit.c')
| -rw-r--r-- | lib/checksum_kunit.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/checksum_kunit.c b/lib/checksum_kunit.c index bf70850035c7..404dba36bae3 100644 --- a/lib/checksum_kunit.c +++ b/lib/checksum_kunit.c @@ -594,13 +594,15 @@ static void test_ip_fast_csum(struct kunit *test) static void test_csum_ipv6_magic(struct kunit *test) { -#if defined(CONFIG_NET) const struct in6_addr *saddr; const struct in6_addr *daddr; unsigned int len; unsigned char proto; __wsum csum; + if (!IS_ENABLED(CONFIG_NET)) + return; + const int daddr_offset = sizeof(struct in6_addr); const int len_offset = sizeof(struct in6_addr) + sizeof(struct in6_addr); const int proto_offset = sizeof(struct in6_addr) + sizeof(struct in6_addr) + @@ -618,7 +620,6 @@ static void test_csum_ipv6_magic(struct kunit *test) CHECK_EQ(to_sum16(expected_csum_ipv6_magic[i]), csum_ipv6_magic(saddr, daddr, len, proto, csum)); } -#endif /* !CONFIG_NET */ } static struct kunit_case __refdata checksum_test_cases[] = { |