Messages in this thread Patch in this message | | | Date | Wed, 6 Jul 2022 16:08:33 -0700 | Subject | [PATCH] net: l2tp: fix clang -Wformat warning | From | Justin Stitt <> |
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When building with clang we encounter this warning: | net/l2tp/l2tp_ppp.c:1557:6: error: format specifies type 'unsigned | short' but the argument has type 'u32' (aka 'unsigned int') | [-Werror,-Wformat] session->nr, session->ns,
Both session->nr and session->ns are of type u32. The format specifier previously used is `%hu` which would truncate our unsigned integer from 32 to 16 bits. This doesn't seem like intended behavior, if it is then perhaps we need to consider suppressing the warning with pragma clauses.
This patch should get us closer to the goal of enabling the -Wformat flag for Clang builds.
Link: https://github.com/ClangBuiltLinux/linux/issues/378 Signed-off-by: Justin Stitt <justinstitt@google.com> --- net/l2tp/l2tp_ppp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/l2tp/l2tp_ppp.c b/net/l2tp/l2tp_ppp.c index 8be1fdc68a0b..db2e584c625e 100644 --- a/net/l2tp/l2tp_ppp.c +++ b/net/l2tp/l2tp_ppp.c @@ -1553,7 +1553,7 @@ static void pppol2tp_seq_session_show(struct seq_file *m, void *v) session->lns_mode ? "LNS" : "LAC", 0, jiffies_to_msecs(session->reorder_timeout)); - seq_printf(m, " %hu/%hu %ld/%ld/%ld %ld/%ld/%ld\n", + seq_printf(m, " %u/%u %ld/%ld/%ld %ld/%ld/%ld\n", session->nr, session->ns, atomic_long_read(&session->stats.tx_packets), atomic_long_read(&session->stats.tx_bytes), -- 2.37.0.rc0.161.g10f37bed90-goog
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