tracing: Fix documentation on tp_printk cmdline option

kernel-parameters.txt incorrectly states that workings of
kernel.tracepoint_printk sysctl depends on "tracepoint_printk kernel
cmdline option", this is a bit misleading for new users since the actual
cmdline option name is tp_printk.

Fixes: 0daa2302968c ("tracing: Add tp_printk cmdline to have tracepoints go to printk()")
Signed-off-by: Vitaly Chikunov <vt@altlinux.org>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20240323231704.1217926-1-vt@altlinux.org

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index bb884c14b2f679dba3a36ba89755a1eca2fe6db2..623fce7d5fcd0c4392432908e21aaba5134e3aa0 100644 (file)
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -6599,7 +6599,7 @@
                        To turn off having tracepoints sent to printk,
                         echo 0 > /proc/sys/kernel/tracepoint_printk
                        Note, echoing 1 into this file without the
-                       tracepoint_printk kernel cmdline option has no effect.
+                       tp_printk kernel cmdline option has no effect.
 
                        The tp_printk_stop_on_boot (see below) can also be used
                        to stop the printing of events to console at