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authorYonghong Song <yhs@fb.com>2019-06-25 17:35:03 -0700
committerDaniel Borkmann <daniel@iogearbox.net>2019-06-26 14:44:07 +0200
commit9db1ff0a415c7de8eb67df5b2c56ac409ccefc37 (patch)
tree57c28eb0281ef0cf406d7f0a3c41db4969499c0e /samples/bpf/xdp_tx_iptunnel_user.c
parent6bcc617f842cdb5f3d66b3a3f06614a62fab992b (diff)
downloadlinux-stericsson-9db1ff0a415c7de8eb67df5b2c56ac409ccefc37.tar.gz
bpf: fix compiler warning with CONFIG_MODULES=n
With CONFIG_MODULES=n, the following compiler warning occurs: /data/users/yhs/work/net-next/kernel/trace/bpf_trace.c:605:13: warning: ‘do_bpf_send_signal’ defined but not used [-Wunused-function] static void do_bpf_send_signal(struct irq_work *entry) The __init function send_signal_irq_work_init(), which calls do_bpf_send_signal(), is defined under CONFIG_MODULES. Hence, when CONFIG_MODULES=n, nobody calls static function do_bpf_send_signal(), hence the warning. The init function send_signal_irq_work_init() should work without CONFIG_MODULES. Moving it out of CONFIG_MODULES code section fixed the compiler warning, and also make bpf_send_signal() helper work without CONFIG_MODULES. Fixes: 8b401f9ed244 ("bpf: implement bpf_send_signal() helper") Reported-By: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Yonghong Song <yhs@fb.com> Acked-by: Song Liu <songliubraving@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'samples/bpf/xdp_tx_iptunnel_user.c')
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