On 10/16/26 07:27, Devin Wittmayer wrote:
Setting the panic screen through sysfs with echo fails with EINVAL,
because the value ends in a newline. Ignore it when matching.

Thanks it looks good to me.

Reviewed-by: Jocelyn Falempe <[email protected]>

Fixes: e85e9ccf3f84 ("drm/panic: Report invalid or unsupported panic modes")
Signed-off-by: Devin Wittmayer <[email protected]>
---
QEMU, 10 runs each, on drm-misc-fixes and drm-misc-next:

                                      before    after
   write of "user\n"                  refused   takes
   write of "bsod\n"                  refused   refused
   drm.panic_screen=user at boot      takes     takes

amdgpu, 2 runs each, 7.2.6 with Arch's source and config:

   echo user                          refused   takes

  drivers/gpu/drm/drm_panic.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_panic.c b/drivers/gpu/drm/drm_panic.c
index 29b1487de7ae0..7847b38ba9aab 100644
--- a/drivers/gpu/drm/drm_panic.c
+++ b/drivers/gpu/drm/drm_panic.c
@@ -839,7 +839,7 @@ static int drm_panic_type_set(const char *val, const struct 
kernel_param *kp)
        unsigned int i;
for (i = 0; i < ARRAY_SIZE(drm_panic_type_map); i++) {
-               if (!strcmp(val, drm_panic_type_map[i])) {
+               if (sysfs_streq(val, drm_panic_type_map[i])) {
                        drm_panic_type = i;
                        return 0;
                }

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