linux.git/scripts/coccinelle/api/alloc, branch v6.12.80

update Coccinelle URL

2022-08-07T19:30:36+00:00

Signed-off-by: Julia Lawall

coccinelle: add patch rule for dma_alloc_coherent

2020-08-21T20:35:40+00:00

Commit dfd32cad146e ("dma-mapping: remove dma_zalloc_coherent()")
removed the definition of dma_zalloc_coherent() and also removed the
corresponding patch rule for replacing instances of dma_alloc_coherent +
memset in zalloc-simple.cocci (though left the report rule).

Add a new patch rule to remove unnecessary calls to memset after
allocating with dma_alloc_coherent. While we're at it, fix a couple of
typos.

Fixes: dfd32cad146e ("dma-mapping: remove dma_zalloc_coherent()")
Signed-off-by: Alex Dewar 
Signed-off-by: Julia Lawall

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 505

2019-06-19T15:11:22+00:00

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 
Reviewed-by: Enrico Weigelt 
Reviewed-by: Allison Randal 
Reviewed-by: Kate Stewart 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081207.556988620@linutronix.de
Signed-off-by: Greg Kroah-Hartman

dma-mapping: remove dma_zalloc_coherent()

2019-01-08T12:58:49+00:00

dma_zalloc_coherent() is no longer needed as it has no users because
dma_alloc_coherent() already zeroes out memory for us.

The Coccinelle grammar rule that used to check for dma_alloc_coherent()
+ memset() is modified so that it just tells the user that the memset is
not needed anymore.

Suggested-by: Christoph Hellwig 
Signed-off-by: Luis Chamberlain 
Signed-off-by: Christoph Hellwig

Coccinelle: remove pci_alloc_consistent semantic to detect in zalloc-simple.cocci

2018-08-22T14:21:43+00:00

Because pci_alloc_consistent has been deprecated. We prefer to use
dma_alloc_coherent directly. Therefore, we should remove pci_alloc_consistent
to increase the confidence.

Acked-by: Julia Lawall 
Acked-by: Himanshu Jha 
Signed-off-by: zhong jiang 
Signed-off-by: Masahiro Yamada

Coccinelle: kzalloc-simple: Rename kzalloc-simple to zalloc-simple

2018-01-16T14:40:17+00:00

Rename kzalloc-simple to zalloc-simple since now the rule is not
specific to kzalloc function only, but also to many other zero memory
allocating functions specified in the rule.

Suggested-by: SF Markus Elfring 
Signed-off-by: Himanshu Jha 
Acked-by: Julia Lawall 
Signed-off-by: Masahiro Yamada

Coccinelle: alloc_cast: Add more memory allocating functions to the list

2018-01-16T14:38:53+00:00

Add more memory allocating functions that are frequently used in the
kernel code to the existing list and remove the useless casts where
it is unnecessary.

But preserve those casts having __attribute__ such as __force, __iomem,
etc. which are used by Sparse in the static analysis of the code.

Also remove two blank lines at EOF.

Signed-off-by: Himanshu Jha 
Acked-by: Julia Lawall 
Signed-off-by: Masahiro Yamada

Coccinelle: kzalloc-simple: Add all zero allocating functions

2018-01-16T14:38:09+00:00

There are many instances where memory is allocated using regular
allocator functions immediately followed by setting the allocated
memory to 0 value using memset.

We already have zero memory allocator functions to set the memory to
0 value instead of manually setting it using memset.

Therefore, use zero memory allocating functions instead of regular
memory allocators followed by memset 0 to remove redundant memset and
make the code more cleaner and also reduce the code size.

Signed-off-by: Himanshu Jha 
Acked-by: Julia Lawall 
Signed-off-by: Masahiro Yamada

coccinelle: mm: scripts/coccinelle/api/alloc/pool_zalloc-simple.cocci

2015-09-08T22:35:28+00:00

add [pci|dma]_pool_zalloc coccinelle check.
replaces instances of [pci|dma]_pool_alloc() followed by memset(0)
with [pci|dma]_pool_zalloc().

Signed-off-by: Sean O. Stalley 
Acked-by: Julia Lawall 
Cc: Vinod Koul 
Cc: Bjorn Helgaas 
Cc: Gilles Muller 
Cc: Nicolas Palix 
Cc: Michal Marek 
Cc: Sebastian Andrzej Siewior 
Cc: Jonathan Corbet 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

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