https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=195518
Bug ID: 195518
Summary: igb compilation failed if RSS is defined.
Product: Base System
Version: 11.0-CURRENT
Hardware: Any
OS: Any
Status: New
Severity: Affects Some People
Priority: ---
Component: kern
Assignee: freebsd-bugs@FreeBSD.org
Reporter: k...@hh.iij4u.or.jp
After r275136, kernel compilation failed with RSS option.
/usr/src/sys/dev/e1000/if_igb.c:2883:6: error: variable 'queues' is
uninitialized when used here [-Werror,-Wuninitialized]
if (queues > rss_getnumbuckets())
^~~~~~
/usr/src/sys/dev/e1000/if_igb.c:2839:24: note: initialize the variable 'queues'
to silence this warning
int bar, want, queues, msgs, maxqueues;
^
= 0
In igb_setup_msix(), if RSS is defined, 'queues' is used before substituted.
2881 #ifdef RSS
2882 /* If we're doing RSS, clamp at the number of RSS buckets */
2883 if (queues > rss_getnumbuckets())
2884 queues = rss_getnumbuckets();
2885 #endif
2886
2887 if (n_queues != 0) {
2888 queues = n_queues;
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