Update the debugfs documentation to indicate that debugfs_remove()
should be used to clean up debugfs entries.

In commit a3d1e7eb5abe ("simple_recursive_removal(): kernel-side rm -rf
for ramfs-style filesystems"), function debugfs_remove_recursive()
was made into an alias for debugfs_remove():

    #define debugfs_remove_recursive debugfs_remove

Therefore, drivers should just use debugfs_remove() going forward.

Signed-off-by: Timur Tabi <ttabi@nvidia.com>
Link: https://lore.kernel.org/r/20250429173958.3973958-1-ttabi@nvidia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Correct a few small things in the devcoredump synopsis and then add
the devcoredump APIs to it.

Fixes: a037699da0a1 ("docs: Add debugging section to process")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Sebastian Fricke <sebastian.fricke@collabora.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: workflows@vger.kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20241130081107.552503-1-rdunlap@infradead.org

This idea was formed after noticing that new developers experience
certain difficulty to navigate within the multitude of different
debugging options in the Kernel and while there often is good
documentation for the tools, the developer has to know first that they
exist and where to find them.
Add a general debugging section to the Kernel documentation, as an
easily locatable entry point to other documentation and as a general
guideline for the topic.

Signed-off-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20241028-media_docs_improve_v3-v3-1-edf5c5b3746f@collabora.com