search for: debugf

Currently all debugfs related initialization for the DRM core happens in drm_debugfs_init(), which is called when registering the minor device. While this works fine for features such as atomic modesetting and GEM, this doesn't work at all for resources like DP MST topology managers which can potentially be created...

Sorry i don`t copy everything: TEST-MAIL1# echo "ls //orphan_dir:0000"|debugfs.ocfs2 /dev/dm-0|wc debugfs.ocfs2 1.6.4 5239722 26198604 246266859 TEST-MAIL1# echo "ls //orphan_dir:0001"|debugfs.ocfs2 /dev/dm-0|wc debugfs.ocfs2 1.6.4 6074335 30371669 285493670 TEST-MAIL2 ~ # echo "ls //orphan_dir:0000"|debugfs.ocfs2 /dev/dm-0|wc debugfs.ocfs2 1.6.4 5239722...

...fferent > > diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c > index 1b456fe..4cf46d8 100644 > --- a/drivers/char/virtio_console.c > +++ b/drivers/char/virtio_console.c > @@ -2215,10 +2215,8 @@ static int __init init(void) > } > > pdrvdata.debugfs_dir = debugfs_create_dir("virtio-ports", NULL); > - if (!pdrvdata.debugfs_dir) { > - pr_warning("Error %ld creating debugfs dir for virtio-ports\n", > - PTR_ERR(pdrvdata.debugfs_dir)); > - } > + if (!pdrvdata.debugfs_dir) > + pr_warning("Error crea...

...fferent > > diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c > index 1b456fe..4cf46d8 100644 > --- a/drivers/char/virtio_console.c > +++ b/drivers/char/virtio_console.c > @@ -2215,10 +2215,8 @@ static int __init init(void) > } > > pdrvdata.debugfs_dir = debugfs_create_dir("virtio-ports", NULL); > - if (!pdrvdata.debugfs_dir) { > - pr_warning("Error %ld creating debugfs dir for virtio-ports\n", > - PTR_ERR(pdrvdata.debugfs_dir)); > - } > + if (!pdrvdata.debugfs_dir) > + pr_warning("Error crea...

On Sun, Mar 12, 2023 at 4:41?PM Eli Cohen <elic at nvidia.com> wrote: > > When deleting the vdpa device, the debugfs files need to be removed so > need to remove debugfs after the device has been unregistered. > > This fixes null pointer dereference when someone deletes the device > after debugfs has been populated. > > Fixes: 294221004322 ("vdpa/mlx5: Add debugfs subtree") > Signe...

One of our users here got the following with an ext3 0.0.6b: # debugfs /dev/hda3 debugfs 1.20-WIP, 17-Jan-2001 for EXT2 FS 0.5b, 95/08/09 /dev/hda3: Bad magic number in super-block while opening filesystem debugfs: Does debugfs need updating? b.

This is the next version of my patch series for teaching DRM how to automatically create debugfs nodes for drivers with MST topologies. This was originally intended just for nouveau, but has since been expanded to all DRM drivers. Changes since previous version: - Fix documentation error that got noticed by the kbuild bot in "drm/dp_mst: Pass entire connector to drm_dp_mst_topology_...

...s/char/virtio_console.c > > > index 1b456fe..4cf46d8 100644 > > > --- a/drivers/char/virtio_console.c > > > +++ b/drivers/char/virtio_console.c > > > @@ -2215,10 +2215,8 @@ static int __init init(void) > > > } > > > > > > pdrvdata.debugfs_dir = debugfs_create_dir("virtio-ports", NULL); > > > - if (!pdrvdata.debugfs_dir) { > > > - pr_warning("Error %ld creating debugfs dir for virtio-ports\n", > > > - PTR_ERR(pdrvdata.debugfs_dir)); > > > - } > > > + if (!pdrvdat...

...s/char/virtio_console.c > > > index 1b456fe..4cf46d8 100644 > > > --- a/drivers/char/virtio_console.c > > > +++ b/drivers/char/virtio_console.c > > > @@ -2215,10 +2215,8 @@ static int __init init(void) > > > } > > > > > > pdrvdata.debugfs_dir = debugfs_create_dir("virtio-ports", NULL); > > > - if (!pdrvdata.debugfs_dir) { > > > - pr_warning("Error %ld creating debugfs dir for virtio-ports\n", > > > - PTR_ERR(pdrvdata.debugfs_dir)); > > > - } > > > + if (!pdrvdat...

debugfs.h protects itself from an undefined DEBUG_FS, so it is not necessary to check it in the driver code or the Makefile. The driver code had been updated for this, but the Makefile had missed the update. Link: https://lore.kernel.org/linux-next/fec68c3c-8249-7af4-5390-0495386a76f9 at infradead.org/ F...

Hello friends, I am trying to learn recovering of file using debugfs. But even though i delete the file and run lsdel in debugfs it always gives me 0 deleted nodes found. Where am i making mistake?. [root at windce7 linux-2.4.32]# fdisk -l Disk /dev/hda: 40.0 GB, 40016019456 bytes 255 heads, 63 sectors/track, 4865 cylinders Units = cylinders of 16065 * 512 = 8225...

I made a little changes in this series: 1. merge the two last patches together 2. unify the private data interface with the drm debugfs one now it should be very obvious for a new dev on how to add new files to debugfs and how to get access to the nouveau structs Karol Herbst (5): debugfs: add infrastructure to add files with other fops than only read debugfs: rename functions to indicate they are used inside drm debug...

.../sdf failed (status 0x8). Run manually! Any ideas how to recover? Thanks, Chris ----------------------------------------------- From: "Theodore Ts'o" <tytso mit edu> To: Mike Moran <mhm austin ibm com> Cc: ext3-users redhat com Subject: Re: fixing a corrupt /dev/hdar .. debugfs assistance... Date: Mon, 28 Jul 2003 16:53:07 -0400 ________________________________ On Mon, Jul 28, 2003 at 10:42:04AM -0500, Mike Moran wrote: > Had a drive crash which a very critital inode. e2fshck > returns a stream of : > > Entry '..' in ... (#######) points to inode (2...

Export initrd in debugfs when retained. As a side effect, initrd_start and initrd_end are not cleared when the initrd is retained. After this patch, one can then copy the initrd space from debugfs and pass it to kexec as the initrd, or do something else with it (maybe it was an initrd not an initramfs). Signed-off-by:...

nouveau_debugfs(drm) will never be NULL, because we're taking the value of the potentially null device pointer and adding to it so it isn't 0x0. So, check if drm is NULL instead. Signed-off-by: Lyude Paul <lyude at redhat.com> Cc: Karol Herbst <karolherbst at gmail.com> --- Changes since v2:...

...rivers/gpu/drm/drm_dp_mst_topology.c index acb7633f3f70..a6a2c03af62a 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -27,6 +27,7 @@ #include <linux/sched.h> #include <linux/seq_file.h> #include <linux/i2c.h> +#include <linux/debugfs.h> #include <drm/drm_dp_mst_helper.h> #include <drm/drmP.h> @@ -3154,6 +3155,104 @@ struct drm_dp_mst_topology_state *drm_atomic_get_mst_topology_state(struct drm_a } EXPORT_SYMBOL(drm_atomic_get_mst_topology_state); +#ifdef CONFIG_DEBUG_FS +static int drm_dp_mst_debugfs_sta...

Date: Sat, 15 Apr 2023 21:24:43 +0200 The address of a data structure member was determined before a corresponding null pointer check in the implementation of the function ?nouveau_debugfs_pstate_get?. Thus avoid the risk for undefined behaviour by moving the assignment for the variable ?ctrl? behind the null pointer check. This issue was detected by using the Coccinelle software. Fixes: 6e9fc177399f08446293fec7607913fdbc95e191 ("drm/nouveau/debugfs: add copy of sysfs pstate...

This is a small patch series that adds a strap_peek file into our debugfs, and sets the size of the vbios.rom debugfs file so that nvbios can easily be used to parse the vbios even on systems where the normal BIOS retrieval methods (for example, laptops that need ACPI to access the vbios for the nvidia GPU) won't work. This should make it a little easier to collect...

On Friday 19 July 2013, Dan Carpenter wrote: > debugfs_create_dir() returns ERR_PTR(-ENODEV) if debugfs is disabled. > Also my static checker doesn't like it when we print the error code, but > it's always just NULL. > > Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com> This looks wrong. debugfs_create_dir intenti...

On Friday 19 July 2013, Dan Carpenter wrote: > debugfs_create_dir() returns ERR_PTR(-ENODEV) if debugfs is disabled. > Also my static checker doesn't like it when we print the error code, but > it's always just NULL. > > Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com> This looks wrong. debugfs_create_dir intenti...