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9 Commits

Author SHA1 Message Date
Denis Efremov
d05f94ad28 coccinelle: api: filter out memdup_user definitions 
Don't match memdup_user/vmemdup_user.

Signed-off-by: Denis Efremov <efremov@linux.com>
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
 2020-08-04 22:46:59 +02:00
Denis Efremov
9c568dbd67 coccinelle: api: extend memdup_user rule with vmemdup_user() 
Add vmemdup_user() transformations to the memdup_user.cocci rule.
Commit 50fd2f298b ("new primitive: vmemdup_user()") introduced
vmemdup_user(). The function uses kvmalloc with GPF_USER flag.

Signed-off-by: Denis Efremov <efremov@linux.com>
 2020-08-04 22:46:59 +02:00
Denis Efremov
547ade42ce coccinelle: api: extend memdup_user transformation with GFP_USER 
Match GFP_USER and optional __GFP_NOWARN allocations with
memdup_user.cocci rule.
Commit 6c2c97a24f ("memdup_user(): switch to GFP_USER") switched
memdup_user() from GFP_KERNEL to GFP_USER. In almost all cases it
is still a good idea to recommend memdup_user() for GFP_KERNEL
allocations. The motivation behind altering memdup_user() to GFP_USER:
https://lkml.org/lkml/2018/1/6/333

Signed-off-by: Denis Efremov <efremov@linux.com>
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
 2020-08-04 22:46:59 +02:00
Thomas Gleixner
7f904d7e1f treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 505 
Based on 1 normalized pattern(s):

  gplv2

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 58 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081207.556988620@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2019-06-19 17:11:22 +02:00
Julia Lawall
43d96390d5 Coccinelle: limit memdup_user transformation to GFP_KERNEL case 
Memdup_user encapsulates a memory allocation with the flag GFP_KERNEL, so
only allow this flag in the original code.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Michal Marek <mmarek@suse.com>
 2016-10-01 23:03:09 +02:00
Nicolas Palix
93f1446849 Coccinelle: Update the options used to the new option scheme 
spatch has changed its option scheme.
E.g., --no_show_diff is now --no-show-diff

This patch updates:
 - scripts/coccicheck
 - Semantic patches under scripts/coccinelle/

Signed-off-by: Nicolas Palix <nicolas.palix@imag.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
 2013-07-03 22:58:13 +02:00
Fengguang Wu
7c6c4d5c4a Coccinelle: fix typo in memdup_user.cocci 
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
 2012-09-01 08:52:13 -07:00
Julia Lawall
29a36d4dec scripts/coccinelle: improve the coverage of some semantic patches 
This patch ensures that all semantic patches in the scripts/coccinelle
directory provide the report option.  Report messages that include line
numbers now have the line number preceded by "line" for easier subsequent
processing.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
 2012-01-15 00:05:46 +01:00
Nicolas Palix
034174598b Coccinelle: Add api/memdup_user 
Use kmemdup_user rather than duplicating its implementation
This is a little bit restricted to reduce false positives

Signed-off-by: Nicolas Palix <npalix@diku.dk>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Michal Marek <mmarek@suse.cz>
 2010-08-31 11:37:54 +02:00