litmus-rt.git/scripts/coccinelle/api, branch test

coccinelle: api: add spatch to prevent unnecessary .owner

2014-11-06T23:16:02+00:00

There are calls which silently set the owner of a module. This is the
preferred way [1], so avoid setting it manually. Currently, we only care
about platform drivers, but there might be more calls to be added later.

[1] https://lkml.org/lkml/2014/10/12/87

Signed-off-by: Wolfram Sang 
Signed-off-by: Greg Kroah-Hartman

Merge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild

2014-08-14T17:14:29+00:00

Pull misc kbuild updates from Michal Marek:
 "This is the non-critical part of kbuild for 3.17-rc1:

   - make help hint to use make -s with make kernelrelease et al.
   - moved a kbuild document to Documentation/kbuild where it belongs
   - four new Coccinelle scripts, one dropped and one fixed
   - new make kselftest target to run various tests on the kernel"

* 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  kbuild: kselftest - new make target to build and run kernel selftests
  Coccinelle: Script to replace if and BUG with BUG_ON
  Coccinelle: Script to detect incorrect argument to sizeof
  Coccinelle: Script to use ARRAY_SIZE instead of division of two sizeofs
  Coccinelle: Script to detect cast after memory allocation
  coccinelle/null: solve parse error
  Documentation: headers_install.txt is part of kbuild
  kbuild: make -s should be used with kernelrelease/kernelversion/image_name

Coccinelle: Script to detect cast after memory allocation

2014-08-06T10:10:17+00:00

This script detects cases of use of cast for the value returned by
kmalloc, kzalloc, kcalloc, kmem_cache_alloc, kmem_cache_zalloc,
kmem_cache_alloc_node, kmalloc_node and kzalloc_node and removes
the cast as it is not useful. This Coccinelle script replaces
drop_kmalloc_cast.cocci as it removes the casting in more limited
cases of kmalloc, kzalloc and kcalloc.

Signed-off-by: Himangi Saraogi 
Acked-by: Julia Lawall 
Signed-off-by: Michal Marek

devres: remove devm_request_and_ioremap()

2014-06-20T03:01:36+00:00

devm_request_and_ioremap() was obsoleted by the commit 7509657
("lib: devres: Introduce devm_ioremap_resource()") and has been
deprecated for a long time. So, let's remove this function.
In addition, all usages of devm_request_and_ioremap() are also
removed.

Signed-off-by: Jingoo Han 
Signed-off-by: Greg Kroah-Hartman

scripts/coccinelle: Use PTR_ERR_OR_ZERO

2014-04-08T15:27:01+00:00

PTR_RET is deprecated. Do not recommend its usage anymore.
Use PTR_ERR_OR_ZERO instead.

Signed-off-by: Sachin Kamat 
Signed-off-by: Michal Marek

scripts: Coccinelle script for pm_runtime_* return checks with IS_ERR_VALUE

2014-01-03T13:39:35+00:00

As indicated by Sekhar in [1], there seems to be a tendency to use
IS_ERR_VALUE to check the error result for pm_runtime_* functions which
make no sense considering commit c48cd65 (ARM: OMAP: use consistent
error checking) - the error values can either be < 0 for error OR
0, 1 in cases where we have success.

So, setup a coccinelle script to help identify the same.

[1] http://marc.info/?t=138472678100003&r=1&w=2

Cc: Russell King 
Reported-by: Sekhar Nori 
Signed-off-by: Nishanth Menon 
Acked-by: Julia Lawall 
Signed-off-by: Michal Marek

scripts/coccinelle/api: remove devm_request_and_ioremap.cocci

2013-10-23T14:55:15+00:00

Use of this function is discouraged in favour of
devm_ioremap_resource(). Don't advertise it.

Signed-off-by: Wolfram Sang 
Acked-by: Julia Lawall 
Signed-off-by: Michal Marek

PTR_RET is now PTR_ERR_OR_ZERO(): Replace most.

2013-07-15T01:55:01+00:00

Sweep of the simple cases.

Cc: netdev@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: Julia Lawall 
Signed-off-by: Rusty Russell 
Acked-by: David S. Miller 
Acked-by: Benjamin Herrenschmidt

Coccinelle: Update the options used to the new option scheme

2013-07-03T20:58:13+00:00

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 
Signed-off-by: Michal Marek

lib: devres: Introduce devm_ioremap_resource()

2013-01-22T17:41:43+00:00

The devm_request_and_ioremap() function is very useful and helps avoid a
whole lot of boilerplate. However, one issue that keeps popping up is
its lack of a specific error code to determine which of the steps that
it performs failed. Furthermore, while the function gives an example and
suggests what error code to return on failure, a wide variety of error
codes are used throughout the tree.

In an attempt to fix these problems, this patch adds a new function that
drivers can transition to. The devm_ioremap_resource() returns a pointer
to the remapped I/O memory on success or an ERR_PTR() encoded error code
on failure. Callers can check for failure using IS_ERR() and determine
its cause by extracting the error code using PTR_ERR().

devm_request_and_ioremap() is implemented as a wrapper around the new
API and return NULL on failure as before. This ensures that backwards
compatibility is maintained until all users have been converted to the
new API, at which point the old devm_request_and_ioremap() function
should be removed.

A semantic patch is included which can be used to convert from the old
devm_request_and_ioremap() API to the new devm_ioremap_resource() API.
Some non-trivial cases may require manual intervention, though.

Signed-off-by: Thierry Reding 
Cc: Arnd Bergmann 
Acked-by: Dmitry Torokhov 
Signed-off-by: Greg Kroah-Hartman