[PATCH v6 2/6] printk: Don't try to parse DEVNAME:0.0 console options

Tony Lindgren
2024-02-13T08:47:42Z

Prepare to parse the console for a console=DEVNAME:0.0 style consoles.
Currently console_setup() tries to make a console index out of any digits
passed in the kernel command line for console. In the DEVNAME:0.0 case,
the name can contain a device IO address, so bail out on console names
with a ':'.

Signed-off-by: Tony Lindgren <tony@atomide.com>
---
kernel/printk/printk.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -2459,6 +2459,10 @@ static int __init console_setup(char *str)
if (console_opt_save(str, brl_options))
return 1;

+ /* Don't attempt to parse a DEVNAME:0.0 style console */
+ if (strchr(str, ':'))
+ return 1;
+
/*
* Decode str into name, index, options.
*/
--
2.43.1