lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Date:   Tue,  1 Dec 2020 08:09:21 +0200
From:   Baruch Siach <>
To:     Michal Kubecek <>
Cc:, Baruch Siach <>
Subject: [PATCH ethtool] Improve error message when SFP module is missing

ETHTOOL_GMODULEINFO request success indicates that SFP cage is present.
Failure of ETHTOOL_GMODULEEEPROM is most likely because SFP module is
not plugged in. Add an indication to the user as to what might be the
reason for the failure.

Signed-off-by: Baruch Siach <>
 ethtool.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ethtool.c b/ethtool.c
index 1d9067e774af..6d785f830ffa 100644
--- a/ethtool.c
+++ b/ethtool.c
@@ -4856,6 +4856,7 @@ static int do_getmodule(struct cmd_context *ctx)
 	err = send_ioctl(ctx, eeprom);
 	if (err < 0) {
 		perror("Cannot get Module EEPROM data");
+		fprintf(stderr, "SFP module not in cage?\n");
 		return 1;

Powered by blists - more mailing lists