linux-stable.git/Documentation/admin-guide/dynamic-debug-howto.rst, branch linux-5.7.y Linux kernel stable tree dynamic_debug: allow to work if debugfs is disabled 2020-02-12T22:15:53+00:00 Greg Kroah-Hartman gregkh@linuxfoundation.org 2020-02-10T21:11:42+00:00 239a5791ffd5559f51815df442c4dbbe7fc21ade With the realization that having debugfs enabled on "production" systems is generally not a good idea, debugfs is being disabled from more and more platforms over time. However, the functionality of dynamic debugging still is needed at times, and since it relies on debugfs for its user api, having debugfs disabled also forces dynamic debug to be disabled. To get around this, also create the "control" file for dynamic_debug in procfs. This allows people turn on debugging as needed at runtime for individual driverfs and subsystems. Reported-by: many different companies Cc: Jason Baron <jbaron@akamai.com> Acked-by: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/r/20200210211142.GB1373304@kroah.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
With the realization that having debugfs enabled on "production" systems
is generally not a good idea, debugfs is being disabled from more and
more platforms over time.  However, the functionality of dynamic
debugging still is needed at times, and since it relies on debugfs for
its user api, having debugfs disabled also forces dynamic debug to be
disabled.

To get around this, also create the "control" file for dynamic_debug in
procfs.  This allows people turn on debugging as needed at runtime for
individual driverfs and subsystems.

Reported-by: many different companies
Cc: Jason Baron <jbaron@akamai.com>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20200210211142.GB1373304@kroah.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Documentation: dynamic-debug: fix wildcard description 2018-11-07T22:25:59+00:00 Randy Dunlap rdunlap@infradead.org 2018-10-20T01:10:58+00:00 1afc5fb5f6b146084d569f0c216bf6f753af7705 Fix grammar about wildcards and insert a space between sentences. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Jason Baron <jbaron@akamai.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: linux-doc@vger.kernel.org Cc: Will Korteland <will@korte.land> Signed-off-by: Jonathan Corbet <corbet@lwn.net> 
Fix grammar about wildcards and insert a space between sentences.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jason Baron <jbaron@akamai.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Cc: Will Korteland <will@korte.land>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Documentation: dynamic_debug: fix a couple of typos 2018-11-07T22:25:22+00:00 Randy Dunlap rdunlap@infradead.org 2018-10-19T23:55:34+00:00 005ae6df28b8c850ea87a03d38e91c63b1c4198d Fix a few "typos" in dynamic-debug-howto.rst. s/dyndbg_query/ddebug_query/ s/sysfs/debugfs/ Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Jason Baron <jbaron@akamai.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: linux-doc@vger.kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net> 
Fix a few "typos" in dynamic-debug-howto.rst.

s/dyndbg_query/ddebug_query/
s/sysfs/debugfs/

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jason Baron <jbaron@akamai.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
dynamic_debug documentation: minor fixes 2017-11-18T00:10:01+00:00 Randy Dunlap rdunlap@infradead.org 2017-11-17T23:27:39+00:00 8c188759fb5788579b5975d5a8c9f529e25c2171 Fix minor typo. Fix missing words in explaining parsing of last line number. Link: http://lkml.kernel.org/r/ebb7ff42-4945-103f-d5b4-f07a6f3343a7@infradead.org Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Jason Baron <jbaron@akamai.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Fix minor typo.

Fix missing words in explaining parsing of last line number.

Link: http://lkml.kernel.org/r/ebb7ff42-4945-103f-d5b4-f07a6f3343a7@infradead.org
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jason Baron <jbaron@akamai.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
dynamic-debug-howto: Correct echo -c to -n 2017-01-26T22:11:02+00:00 Steven Price steven@ecrips.co.uk 2017-01-17T13:38:49+00:00 31fc93d5f29b300307cda5aef95d890954337e01 Two of the example command lines use an argument to echo of "-c" which isn't valid in (most versions of) echo causing these examples to fail. Correct the argument to "-n" which works correctly. Signed-off-by: Steven Price <steven@ecrips.co.uk> Signed-off-by: Jonathan Corbet <corbet@lwn.net> 
Two of the example command lines use an argument to echo of "-c" which
isn't valid in (most versions of) echo causing these examples to fail.
Correct the argument to "-n" which works correctly.

Signed-off-by: Steven Price <steven@ecrips.co.uk>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
docs-rst: create an user's manual book 2016-10-24T10:12:35+00:00 Mauro Carvalho Chehab mchehab@s-opensource.com 2016-09-21T12:51:11+00:00 9d85025b0418163fae079c9ba8f8445212de8568 Place README, REPORTING-BUGS, SecurityBugs and kernel-parameters on an user's manual book. As we'll be numbering the user's manual, remove the manual numbering from SecurityBugs. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> 
Place README, REPORTING-BUGS, SecurityBugs and kernel-parameters
on an user's manual book.

As we'll be numbering the user's manual, remove the manual
numbering from SecurityBugs.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>