From 3da1f33e79a5922c1a31077e7b33aba1cec19b94 Mon Sep 17 00:00:00 2001 From: Kirill Smelkov Date: Fri, 14 May 2010 19:45:16 +0400 Subject: [PATCH] drm: Prefix info printk about registering panic notifier with 'drm' Recently I've studied my system dmesg and seen this: 1 [ 0.478416] ACPI: Battery Slot [C1B4] (battery present) 2 [ 0.478648] ACPI: Battery Slot [C1B3] (battery absent) 3 [ 0.906678] [drm] initialized overlay support 4 [ 1.762304] Console: switching to colour frame buffer device 128x48 5 [ 1.765211] fb0: inteldrmfb frame buffer device 6 [ 1.765242] registered panic notifier 7 [ 1.765272] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0 8 [ 1.765372] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled and it was not evident who registered that panic notifier on line 6. I'd bought it as some low-level stuff needed by kernel itself, but the time was inappropriate -- too late for such things. So I had to study sources to see it was drm who was registering switch-to-fb on panic. Let's avoid possible confusion and mark this message as going from drm subsystem. (I'm a bit unsure whether to use '[drm]:' or 'drm:' -- the rest of the kernel just uses 'topic:', and even in drm_fb_helper.c we use 'fb%d:' without [] brackets. Either way is ok with me.) Signed-off-by: Kirill Smelkov Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_fb_helper.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index b28e56382e8..5db4f47a008 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -485,7 +485,7 @@ void drm_fb_helper_fini(struct drm_fb_helper *fb_helper) if (!list_empty(&fb_helper->kernel_fb_list)) { list_del(&fb_helper->kernel_fb_list); if (list_empty(&kernel_fb_helper_list)) { - printk(KERN_INFO "unregistered panic notifier\n"); + printk(KERN_INFO "drm: unregistered panic notifier\n"); atomic_notifier_chain_unregister(&panic_notifier_list, &paniced); unregister_sysrq_key('v', &sysrq_drm_fb_helper_restore_op); @@ -859,7 +859,7 @@ int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper, /* Switch back to kernel console on panic */ /* multi card linked list maybe */ if (list_empty(&kernel_fb_helper_list)) { - printk(KERN_INFO "registered panic notifier\n"); + printk(KERN_INFO "drm: registered panic notifier\n"); atomic_notifier_chain_register(&panic_notifier_list, &paniced); register_sysrq_key('v', &sysrq_drm_fb_helper_restore_op); -- 2.34.1