netdev - [PATCH 1/1 V2] Selftests: net: Improve missing modules error message

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Message-ID: <20240823054833.144612-1-david.hunter.linux@gmail.com>
Date: Fri, 23 Aug 2024 01:48:30 -0400
From: David Hunter <david.hunter.linux@...il.com>
To: "David S . Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Shuah Khan <shuah@...nel.org>
Cc: David Hunter <david.hunter.linux@...il.com>,
	netdev@...r.kernel.org,
	linux-kselftest@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Javier Carrasco <javier.carrasco.cruz@...il.com>
Subject: [PATCH 1/1 V2] Selftests: net: Improve missing modules error message

The error message descirbing the required modules is inaccurate.
Currently, only  "SKIP: Need act_mirred module" is printed when any of
the modules are missing. As a result, users might only include that
module; however, three modules are required.

Fix the error message to show any/all modules needed for the script file
to properly execute.

Signed-off-by: David Hunter <david.hunter.linux@...il.com>
---
V1 --> V2 
	- included subject prefixes 
	- Split the patch into two separate patches (one for each issue)
	- fixed typos in message body
	- removed second, unnecessary for loop
---
 .../selftests/net/test_ingress_egress_chaining.sh     | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/test_ingress_egress_chaining.sh b/tools/testing/selftests/net/test_ingress_egress_chaining.sh
index 08adff6bb3b6..d4b97662849b 100644
--- a/tools/testing/selftests/net/test_ingress_egress_chaining.sh
+++ b/tools/testing/selftests/net/test_ingress_egress_chaining.sh
@@ -13,10 +13,19 @@ if [ "$(id -u)" -ne 0 ];then
 fi
 
 needed_mods="act_mirred cls_flower sch_ingress"
+mods_missing=""
+numb_mods_needed=0;
+
 for mod in $needed_mods; do
-	modinfo $mod &>/dev/null || { echo "SKIP: Need act_mirred module"; exit $ksft_skip; }
+	modinfo $mod &>/dev/null ||
+	{ mods_missing="$mods_missing$mod " ; numb_mods_needed=$(expr $numb_mods_needed + 1);}
 done
 
+if [[ $numb_mods_needed>0 ]]; then
+	echo "SKIP: $numb_mods_needed modules needed: $mods_missing" ; exit $ksft_skip;
+fi
+
+
 ns="ns$((RANDOM%899+100))"
 veth1="veth1$((RANDOM%899+100))"
 veth2="veth2$((RANDOM%899+100))"
-- 
2.43.0