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authorBreno Leitao <leitao@debian.org>2023-08-11 02:31:58 -0700
committerJakub Kicinski <kuba@kernel.org>2023-08-17 19:25:42 -0700
commitfad361a2ee9099028774ff9081bf9abf08bd2ff0 (patch)
tree36ec2eaa2fdbf1d83ab14992a6a60e407f1ab29c /drivers
parentb0a9e2c9a99f64e3c59e8a32a11b90c667201203 (diff)
netconsole: Enable compile time configuration
Enable netconsole features to be set at compilation time. Create two Kconfig options that allow users to set extended logs and release prepending features at compilation time. Right now, the user needs to pass command line parameters to netconsole, such as "+"/"r" to enable extended logs and version prepending features. With these two options, the user could set the default values for the features at compile time, and don't need to pass it in the command line to get them enabled, simplifying the command line. Signed-off-by: Breno Leitao <leitao@debian.org> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://lore.kernel.org/r/20230811093158.1678322-3-leitao@debian.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/Kconfig22
-rw-r--r--drivers/net/netconsole.c5
2 files changed, 27 insertions, 0 deletions
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index be43cd08027b..44eeb5d61ba9 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -332,6 +332,28 @@ config NETCONSOLE_DYNAMIC
at runtime through a userspace interface exported using configfs.
See <file:Documentation/networking/netconsole.rst> for details.
+config NETCONSOLE_EXTENDED_LOG
+ bool "Set kernel extended message by default"
+ depends on NETCONSOLE
+ default n
+ help
+ Set extended log support for netconsole message. If this option is
+ set, log messages are transmitted with extended metadata header in a
+ format similar to /dev/kmsg. See
+ <file:Documentation/networking/netconsole.rst> for details.
+
+config NETCONSOLE_PREPEND_RELEASE
+ bool "Prepend kernel release version in the message by default"
+ depends on NETCONSOLE_EXTENDED_LOG
+ default n
+ help
+ Set kernel release to be prepended to each netconsole message by
+ default. If this option is set, the kernel release is prepended into
+ the first field of every netconsole message, so, the netconsole
+ server/peer can easily identify what kernel release is logging each
+ message. See <file:Documentation/networking/netconsole.rst> for
+ details.
+
config NETPOLL
def_bool NETCONSOLE
diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c
index 670b6f0a054c..3111e1648592 100644
--- a/drivers/net/netconsole.c
+++ b/drivers/net/netconsole.c
@@ -178,6 +178,11 @@ static struct netconsole_target *alloc_and_init(void)
if (!nt)
return nt;
+ if (IS_ENABLED(CONFIG_NETCONSOLE_EXTENDED_LOG))
+ nt->extended = true;
+ if (IS_ENABLED(CONFIG_NETCONSOLE_PREPEND_RELEASE))
+ nt->release = true;
+
nt->np.name = "netconsole";
strscpy(nt->np.dev_name, "eth0", IFNAMSIZ);
nt->np.local_port = 6665;