netdev - [PATCH v2 iproute2-next 04/11] flower: fix clang warnings

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Date:   Tue, 11 Jan 2022 09:54:31 -0800
From:   Stephen Hemminger <stephen@...workplumber.org>
To:     netdev@...r.kernel.org
Cc:     Stephen Hemminger <sthemmin@...rosoft.com>
Subject: [PATCH v2 iproute2-next 04/11] flower: fix clang warnings

Clang complains about passing non-format string to print_string.
Handle this by splitting json and non-json parts.

Signed-off-by: Stephen Hemminger <sthemmin@...rosoft.com>
---
 tc/f_flower.c | 38 ++++++++++++--------------------------
 1 file changed, 12 insertions(+), 26 deletions(-)

diff --git a/tc/f_flower.c b/tc/f_flower.c
index 6d70b92a2894..1dcce8c4aa95 100644
--- a/tc/f_flower.c
+++ b/tc/f_flower.c
@@ -1925,10 +1925,9 @@ static int __mask_bits(char *addr, size_t len)
 	return bits;
 }
 
-static void flower_print_eth_addr(char *name, struct rtattr *addr_attr,
+static void flower_print_eth_addr(const char *name, struct rtattr *addr_attr,
 				  struct rtattr *mask_attr)
 {
-	SPRINT_BUF(namefrm);
 	SPRINT_BUF(out);
 	SPRINT_BUF(b1);
 	size_t done;
@@ -1950,8 +1949,7 @@ static void flower_print_eth_addr(char *name, struct rtattr *addr_attr,
 	}
 
 	print_nl();
-	sprintf(namefrm, "  %s %%s", name);
-	print_string(PRINT_ANY, name, namefrm, out);
+	print_string_name_value(name, out);
 }
 
 static void flower_print_eth_type(__be16 *p_eth_type,
@@ -2064,7 +2062,6 @@ static void flower_print_ip_addr(char *name, __be16 eth_type,
 {
 	struct rtattr *addr_attr;
 	struct rtattr *mask_attr;
-	SPRINT_BUF(namefrm);
 	SPRINT_BUF(out);
 	size_t done;
 	int family;
@@ -2096,9 +2093,9 @@ static void flower_print_ip_addr(char *name, __be16 eth_type,
 		sprintf(out + done, "/%d", bits);
 
 	print_nl();
-	sprintf(namefrm, "  %s %%s", name);
-	print_string(PRINT_ANY, name, namefrm, out);
+	print_string_name_value(name, out);
 }
+
 static void flower_print_ip4_addr(char *name, struct rtattr *addr_attr,
 				  struct rtattr *mask_attr)
 {
@@ -2124,22 +2121,19 @@ static void flower_print_port_range(char *name, struct rtattr *min_attr,
 		print_hu(PRINT_JSON, "end", NULL, rta_getattr_be16(max_attr));
 		close_json_object();
 	} else {
-		SPRINT_BUF(namefrm);
 		SPRINT_BUF(out);
 		size_t done;
 
 		done = sprintf(out, "%u", rta_getattr_be16(min_attr));
 		sprintf(out + done, "-%u", rta_getattr_be16(max_attr));
 		print_nl();
-		sprintf(namefrm, "  %s %%s", name);
-		print_string(PRINT_ANY, name, namefrm, out);
+		print_string_name_value(name, out);
 	}
 }
 
 static void flower_print_tcp_flags(const char *name, struct rtattr *flags_attr,
 				   struct rtattr *mask_attr)
 {
-	SPRINT_BUF(namefrm);
 	SPRINT_BUF(out);
 	size_t done;
 
@@ -2151,8 +2145,7 @@ static void flower_print_tcp_flags(const char *name, struct rtattr *flags_attr,
 		sprintf(out + done, "/%x", rta_getattr_be16(mask_attr));
 
 	print_nl();
-	sprintf(namefrm, "  %s %%s", name);
-	print_string(PRINT_ANY, name, namefrm, out);
+	print_string_name_value(name, out);
 }
 
 static void flower_print_ct_state(struct rtattr *flags_attr,
@@ -2239,14 +2232,11 @@ static void flower_print_ct_mark(struct rtattr *attr,
 
 static void flower_print_key_id(const char *name, struct rtattr *attr)
 {
-	SPRINT_BUF(namefrm);
-
 	if (!attr)
 		return;
 
 	print_nl();
-	sprintf(namefrm, "  %s %%u", name);
-	print_uint(PRINT_ANY, name, namefrm, rta_getattr_be32(attr));
+	print_uint_name_value(name, rta_getattr_be32(attr));
 }
 
 static void flower_print_geneve_opts(const char *name, struct rtattr *attr,
@@ -2342,8 +2332,9 @@ static void flower_print_erspan_opts(const char *name, struct rtattr *attr,
 	sprintf(strbuf, "%u:%u:%u:%u", ver, idx, dir, hwid);
 }
 
-static void flower_print_enc_parts(const char *name, const char *namefrm,
-				   struct rtattr *attr, char *key, char *mask)
+static void __attribute__((format(printf, 2, 0)))
+flower_print_enc_parts(const char *name, const char *namefrm,
+		       struct rtattr *attr, char *key, char *mask)
 {
 	char *key_token, *mask_token, *out;
 	int len;
@@ -2431,7 +2422,6 @@ static void flower_print_masked_u8(const char *name, struct rtattr *attr,
 {
 	const char *value_str = NULL;
 	__u8 value, mask;
-	SPRINT_BUF(namefrm);
 	SPRINT_BUF(out);
 	size_t done;
 
@@ -2452,8 +2442,7 @@ static void flower_print_masked_u8(const char *name, struct rtattr *attr,
 		sprintf(out + done, "/%d", mask);
 
 	print_nl();
-	sprintf(namefrm, "  %s %%s", name);
-	print_string(PRINT_ANY, name, namefrm, out);
+	print_string_name_value(name, out);
 }
 
 static void flower_print_u8(const char *name, struct rtattr *attr)
@@ -2463,14 +2452,11 @@ static void flower_print_u8(const char *name, struct rtattr *attr)
 
 static void flower_print_u32(const char *name, struct rtattr *attr)
 {
-	SPRINT_BUF(namefrm);
-
 	if (!attr)
 		return;
 
 	print_nl();
-	sprintf(namefrm, "  %s %%u", name);
-	print_uint(PRINT_ANY, name, namefrm, rta_getattr_u32(attr));
+	print_uint_name_value(name, rta_getattr_u32(attr));
 }
 
 static void flower_print_mpls_opt_lse(struct rtattr *lse)
-- 
2.30.2