netconsole: append release to sysdata

Append the init_utsname()->release to sysdata buffer before sending the
message in case the feature is set.

Signed-off-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250314-netcons_release-v1-4-07979c4b86af@debian.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c
index 93fbc7391f7316aeeae62a81c3250e0e305d4bef..4289ccd3e41bff109aa3f8ff352dcebba8a7ebee 100644 (file)
--- a/drivers/net/netconsole.c
+++ b/drivers/net/netconsole.c
@@ -1238,6 +1238,14 @@ static int sysdata_append_taskname(struct netconsole_target *nt, int offset)
                         MAX_EXTRADATA_ENTRY_LEN, " taskname=%s\n",
                         current->comm);
 }
+
+static int sysdata_append_release(struct netconsole_target *nt, int offset)
+{
+       return scnprintf(&nt->extradata_complete[offset],
+                        MAX_EXTRADATA_ENTRY_LEN, " release=%s\n",
+                        init_utsname()->release);
+}
+
 /*
  * prepare_extradata - append sysdata at extradata_complete in runtime
  * @nt: target to send message to
@@ -1259,6 +1267,8 @@ static int prepare_extradata(struct netconsole_target *nt)
                extradata_len += sysdata_append_cpu_nr(nt, extradata_len);
        if (nt->sysdata_fields & SYSDATA_TASKNAME)
                extradata_len += sysdata_append_taskname(nt, extradata_len);
+       if (nt->sysdata_fields & SYSDATA_RELEASE)
+               extradata_len += sysdata_append_release(nt, extradata_len);
 
        WARN_ON_ONCE(extradata_len >
                     MAX_EXTRADATA_ENTRY_LEN * MAX_EXTRADATA_ITEMS);