[PATCH ibdiags 07/16] ibdiags: Mark functions taking format strings with attribute format

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From: Jason Gunthorpe <jgg@xxxxxxxxxxxx>

And fix the resulting format string errors. Resolves clang warning
-Wformat-nonliteral

Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxxxx>
---
 include/ibdiag_common.h | 9 ++++++---
 src/ibportstate.c       | 2 +-
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/include/ibdiag_common.h b/include/ibdiag_common.h
index 6e7ec3851bb190..6808ecb5c28763 100644
--- a/include/ibdiag_common.h
+++ b/include/ibdiag_common.h
@@ -139,7 +139,8 @@ extern int ibdiag_process_opts(int argc, char *const argv[], void *context,
 			       const char *usage_args,
 			       const char *usage_examples[]);
 extern void ibdiag_show_usage(void);
-extern void ibexit(const char *fn, const char *msg, ...);
+extern void ibexit(const char *fn, const char *msg, ...)
+	__attribute__((format(printf, 2, 3)));
 
 /* convert counter values to a float with a unit specifier returned (using
  * binary prefix)
@@ -162,9 +163,11 @@ int resolve_portid_str(char *ca_name, uint8_t ca_port, ib_portid_t * portid,
 		       char *addr_str, enum MAD_DEST dest_type,
 		       ib_portid_t *sm_id, const struct ibmad_port *srcport);
 int vsnprint_field(char *buf, size_t n, enum MAD_FIELDS f, int spacing,
-		   const char *format, va_list va_args);
+		   const char *format, va_list va_args)
+	__attribute__((format(printf, 5, 0)));
 int snprint_field(char *buf, size_t n, enum MAD_FIELDS f, int spacing,
-		  const char *format, ...);
+		  const char *format, ...)
+	__attribute__((format(printf, 5, 6)));
 void dump_portinfo(void *pi, int tabs);
 
 /**
diff --git a/src/ibportstate.c b/src/ibportstate.c
index f733cf8eab2a92..39118d6d3992f7 100644
--- a/src/ibportstate.c
+++ b/src/ibportstate.c
@@ -444,7 +444,7 @@ int main(int argc, char **argv)
 			port_args[j].set = 1;
 			if (!port_args[j].val) {
 				if (port_op >= 0)
-					IBEXIT("%s only one of: ",
+					IBEXIT("%s only one of: "
 						"query, enable, disable, "
 						"reset, down, arm, active, "
 						"can be specified",
-- 
2.21.0




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