netdev - [RFC iproute2-next 01/11] ip: print_rta_if takes ifindex as device argument instead of attribute

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Message-Id: <20210929152848.1710552-2-razor@blackwall.org>
Date:   Wed, 29 Sep 2021 18:28:38 +0300
From:   Nikolay Aleksandrov <razor@...ckwall.org>
To:     netdev@...r.kernel.org
Cc:     roopa@...dia.com, donaldsharp72@...il.com, dsahern@...il.com,
        idosch@...sch.org, Nikolay Aleksandrov <nikolay@...dia.com>
Subject: [RFC iproute2-next 01/11] ip: print_rta_if takes ifindex as device argument instead of attribute

From: Nikolay Aleksandrov <nikolay@...dia.com>

We need print_rta_if() to take ifindex directly so later we can use it
with cached converted nexthop objects.

Signed-off-by: Nikolay Aleksandrov <nikolay@...dia.com>
---
 ip/ip_common.h |  2 +-
 ip/ipnexthop.c |  2 +-
 ip/iproute.c   | 12 ++++++------
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/ip/ip_common.h b/ip/ip_common.h
index ad018183eac0..d3d50cbca74d 100644
--- a/ip/ip_common.h
+++ b/ip/ip_common.h
@@ -168,7 +168,7 @@ int name_is_vrf(const char *name);
 
 void print_num(FILE *fp, unsigned int width, uint64_t count);
 void print_rt_flags(FILE *fp, unsigned int flags);
-void print_rta_if(FILE *fp, const struct rtattr *rta, const char *prefix);
+void print_rta_ifidx(FILE *fp, __u32 ifidx, const char *prefix);
 void print_rta_gateway(FILE *fp, unsigned char family,
 		       const struct rtattr *rta);
 #endif /* _IP_COMMON_H_ */
diff --git a/ip/ipnexthop.c b/ip/ipnexthop.c
index 9478aa5298eb..a4048d803325 100644
--- a/ip/ipnexthop.c
+++ b/ip/ipnexthop.c
@@ -381,7 +381,7 @@ int print_nexthop(struct nlmsghdr *n, void *arg)
 		print_rta_gateway(fp, nhm->nh_family, tb[NHA_GATEWAY]);
 
 	if (tb[NHA_OIF])
-		print_rta_if(fp, tb[NHA_OIF], "dev");
+		print_rta_ifidx(fp, rta_getattr_u32(tb[NHA_OIF]), "dev");
 
 	if (nhm->nh_scope != RT_SCOPE_UNIVERSE || show_details > 0) {
 		print_string(PRINT_ANY, "scope", "scope %s ",
diff --git a/ip/iproute.c b/ip/iproute.c
index 1e5e2002d2ed..f2bf4737b958 100644
--- a/ip/iproute.c
+++ b/ip/iproute.c
@@ -410,13 +410,13 @@ static void print_rt_pref(FILE *fp, unsigned int pref)
 	}
 }
 
-void print_rta_if(FILE *fp, const struct rtattr *rta, const char *prefix)
+void print_rta_ifidx(FILE *fp, __u32 ifidx, const char *prefix)
 {
-	const char *ifname = ll_index_to_name(rta_getattr_u32(rta));
+	const char *ifname = ll_index_to_name(ifidx);
 
-	if (is_json_context())
+	if (is_json_context()) {
 		print_string(PRINT_JSON, prefix, NULL, ifname);
-	else {
+	} else {
 		fprintf(fp, "%s ", prefix);
 		color_fprintf(fp, COLOR_IFNAME, "%s ", ifname);
 	}
@@ -862,7 +862,7 @@ int print_route(struct nlmsghdr *n, void *arg)
 		print_rta_via(fp, tb[RTA_VIA]);
 
 	if (tb[RTA_OIF] && filter.oifmask != -1)
-		print_rta_if(fp, tb[RTA_OIF], "dev");
+		print_rta_ifidx(fp, rta_getattr_u32(tb[RTA_OIF]), "dev");
 
 	if (table && (table != RT_TABLE_MAIN || show_details > 0) && !filter.tb)
 		print_string(PRINT_ANY,
@@ -946,7 +946,7 @@ int print_route(struct nlmsghdr *n, void *arg)
 		print_rta_metrics(fp, tb[RTA_METRICS]);
 
 	if (tb[RTA_IIF] && filter.iifmask != -1)
-		print_rta_if(fp, tb[RTA_IIF], "iif");
+		print_rta_ifidx(fp, rta_getattr_u32(tb[RTA_IIF]), "iif");
 
 	if (tb[RTA_PREF])
 		print_rt_pref(fp, rta_getattr_u8(tb[RTA_PREF]));
-- 
2.31.1