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authorStefan Liebler <stli@linux.ibm.com>2019-07-02 14:07:44 +0200
committerStefan Liebler <stli@linux.ibm.com>2019-07-02 14:07:44 +0200
commitd1bc2cbbed9aea2017ef941f63c8786571da5b4f (patch)
treeeb77d636ea206639a5ea99ce0f37e223a954e163 /inet/inet_net.c
parent72edea80c1bb402f41d8bca58c835abf46dadd48 (diff)
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Fix build warnings in resolv/res_send.c
This patch fixes the gcc warnings seen with gcc 9 -march>=z13 on s390x: res_send.c: In function ‘__res_context_send’: res_send.c:498:7: error: ‘resplen’ may be used uninitialized in this function [-Werror=maybe-uninitialized] 498 | if (n == 0 && (buf2 == NULL || *resplen2 == 0)) | ^ In this case send_vc is inlined into __res_context_send and the maybe uninitialized resplen belongs to the one in send_vc. In send_vc there is already a DIAG_IGNORE_NEEDS_COMMENT (5, "-Wmaybe-uninitialized") and a comment which explains that this is a false-positive. Note that resplen is used as return value. This patch adds a further DIAG_IGNORE_NEEDS_COMMENT around the declaration of n in __res_context_send and the comparison after n was set to the return value of send_vc. ChangeLog: * resolv/res_send.c (__res_context_send): Disable maybe-uninitialized warning.
Diffstat (limited to 'inet/inet_net.c')
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