Hello Everyone,
I am seeing the below compiler warnings with GCC version 6.1 on Fedora 24.
$gcc --version
gcc (GCC) 6.1.1 20160621 (Red Hat 6.1.1-3)
libtool: compile: gcc -DHAVE_CONFIG_H -I. -I.. -I ../include -I ./include
-I ../lib -I ./lib -Wstrict-prototypes -Wall -Wextra -Wno-sign-compare
-Wpointer-arith -Wswitch-enum -Wunused-parameter -Wbad-function-cast
-Wcast-align -Wmissing-prototypes -Wmissing-field-initializers
-fno-strict-aliasing -Werror -g -O2 -MT lib/classifier.lo -MD -MP -MF
lib/.deps/classifier.Tpo -c ../lib/classifier.c -o lib/classifier.o
../lib/classifier.c: In function ‘cls_match_alloc’:
../lib/classifier.c:96:53: error: self-comparison always evaluates to true
[-Werror=tautological-compare]
*CONST_CAST(const struct cls_rule **, &cls_match->cls_rule) = rule;
^~
../lib/classifier.c: In function ‘cls_rule_set_conjunctions’:
../lib/classifier.c:248:51: error: self-comparison always evaluates to true
[-Werror=tautological-compare]
= ovsrcu_get_protected(struct cls_conjunction_set *,
&match->conj_set);
^~
../lib/classifier.c: In function ‘classifier_replace’:
../lib/classifier.c:617:68: error: self-comparison always evaluates to true
[-Werror=tautological-compare]
conj_set = ovsrcu_get_protected(struct cls_conjunction_set
*,
^~
../lib/classifier.c: In function ‘classifier_remove’:
../lib/classifier.c:816:56: error: self-comparison always evaluates to true
[-Werror=tautological-compare]
conj_set = ovsrcu_get_protected(struct cls_conjunction_set *,
^~
../lib/classifier.c: In function ‘destroy_subtable’:
../lib/classifier.c:1518:45: error: self-comparison always evaluates to
true [-Werror=tautological-compare]
ovs_assert(ovsrcu_get_protected(struct trie_node *,
&subtable->ports_trie)
^~
../lib/classifier.c: In function ‘trie_destroy’:
../lib/classifier.c:1854:70: error: self-comparison always evaluates to
true [-Werror=tautological-compare]
struct trie_node *node = ovsrcu_get_protected(struct trie_node *,
trie);
^~
../lib/classifier.c: In function ‘trie_insert_prefix’:
../lib/classifier.c:2049:60: error: self-comparison always evaluates to
true [-Werror=tautological-compare]
for (; (node = ovsrcu_get_protected(struct trie_node *, edge));
^~
../lib/classifier.c: In function ‘trie_remove_prefix’:
../lib/classifier.c:2108:58: error: self-comparison always evaluates to
true [-Werror=tautological-compare]
(node = ovsrcu_get_protected(struct trie_node *, edges[depth]));
^~
../lib/classifier.c:2130:70: error: self-comparison always evaluates to
true [-Werror=tautological-compare]
*edge0 = ovsrcu_get_protected(struct trie_node *,
^
../lib/classifier.c:2132:70: error: self-comparison always evaluates to
true [-Werror=tautological-compare]
*edge1 = ovsrcu_get_protected(struct trie_node *,
^
../lib/classifier.c:2160:64: error: self-comparison always evaluates to
true [-Werror=tautological-compare]
node = ovsrcu_get_protected(struct trie_node *,
^
cc1: all warnings being treated as errors
Makefile:4190: recipe for target 'lib/classifier.lo' failed
Thanks
Numan
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