Commit 5a2ba992 authored by Emil Velikov's avatar Emil Velikov Committed by Emil Velikov
Browse files

drm: print the current->comm alongside the pid 



The question of "what process is this pid" keeps on popping up, so lets
print the process name alongside the pid.

Cc: Mauro Rossi <issor.oruam@gmail.com>
Cc: Bob Beckett <bob.beckett@collabora.com>
Cc: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Signed-off-by: default avatarEmil Velikov <emil.velikov@collabora.com>
Reviewed-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200518083315.129948-1-emil.l.velikov@gmail.com
parent ab15d56e

drivers/gpu/drm/drm_file.c

+4 −3
Original line number Diff line number Diff line
@@ -253,8 +253,8 @@ void drm_file_free(struct drm_file *file) 


	dev = file->minor->dev;



	DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n",

		  task_pid_nr(current),

	DRM_DEBUG("comm=\"%s\", pid=%d, dev=0x%lx, open_count=%d\n",

		  current->comm, task_pid_nr(current),

		  (long)old_encode_dev(file->minor->kdev->devt),

		  atomic_read(&dev->open_count));
@@ -345,7 +345,8 @@ static int drm_open_helper(struct file *filp, struct drm_minor *minor) 
	if (dev->switch_power_state != DRM_SWITCH_POWER_ON && dev->switch_power_state != DRM_SWITCH_POWER_DYNAMIC_OFF)

		return -EINVAL;



	DRM_DEBUG("pid = %d, minor = %d\n", task_pid_nr(current), minor->index);

	DRM_DEBUG("comm=\"%s\", pid=%d, minor=%d\n", current->comm,

		  task_pid_nr(current), minor->index);



	priv = drm_file_alloc(minor);

	if (IS_ERR(priv))

drivers/gpu/drm/drm_ioc32.c

+2 −2
Original line number Diff line number Diff line
@@ -985,8 +985,8 @@ long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) 
	if (!fn)

		return drm_ioctl(filp, cmd, arg);



	DRM_DEBUG("pid=%d, dev=0x%lx, auth=%d, %s\n",

		  task_pid_nr(current),

	DRM_DEBUG("comm=\"%s\", pid=%d, dev=0x%lx, auth=%d, %s\n",

		  current->comm, task_pid_nr(current),

		  (long)old_encode_dev(file_priv->minor->kdev->devt),

		  file_priv->authenticated,

		  drm_compat_ioctls[nr].name);

drivers/gpu/drm/drm_ioctl.c

+6 −5
Original line number Diff line number Diff line
@@ -852,8 +852,8 @@ long drm_ioctl(struct file *filp, 
		out_size = 0;

	ksize = max(max(in_size, out_size), drv_size);



	DRM_DEBUG("pid=%d, dev=0x%lx, auth=%d, %s\n",

		  task_pid_nr(current),

	DRM_DEBUG("comm=\"%s\" pid=%d, dev=0x%lx, auth=%d, %s\n",

		  current->comm, task_pid_nr(current),

		  (long)old_encode_dev(file_priv->minor->kdev->devt),

		  file_priv->authenticated, ioctl->name);
@@ -890,15 +890,16 @@ long drm_ioctl(struct file *filp, 


      err_i1:

	if (!ioctl)

		DRM_DEBUG("invalid ioctl: pid=%d, dev=0x%lx, auth=%d, cmd=0x%02x, nr=0x%02x\n",

			  task_pid_nr(current),

		DRM_DEBUG("invalid ioctl: comm=\"%s\", pid=%d, dev=0x%lx, auth=%d, cmd=0x%02x, nr=0x%02x\n",

			  current->comm, task_pid_nr(current),

			  (long)old_encode_dev(file_priv->minor->kdev->devt),

			  file_priv->authenticated, cmd, nr);



	if (kdata != stack_kdata)

		kfree(kdata);

	if (retcode)

		DRM_DEBUG("pid=%d, ret = %d\n", task_pid_nr(current), retcode);

		DRM_DEBUG("comm=\"%s\", pid=%d, ret=%d\n", current->comm,

			  task_pid_nr(current), retcode);

	return retcode;

}

EXPORT_SYMBOL(drm_ioctl);

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