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author | Gustavo A. R. Silva <gustavo@embeddedor.com> | 2019-03-07 16:29:47 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-03-07 18:32:02 -0800 |
commit | 9abdb50cda0ffe33bbb2e40cbad97b32fb7ff892 (patch) | |
tree | 698fa4965e0e92e94263fdaea28b3f9327d7612c /Documentation/process | |
parent | 32a5ad9c22852e6bd9e74bdec5934ef9d1480bc5 (diff) | |
download | linux-9abdb50cda0ffe33bbb2e40cbad97b32fb7ff892.tar.gz linux-9abdb50cda0ffe33bbb2e40cbad97b32fb7ff892.tar.bz2 linux-9abdb50cda0ffe33bbb2e40cbad97b32fb7ff892.zip |
kernel/gcov/gcc_3_4.c: use struct_size() in kzalloc()
One of the more common cases of allocation size calculations is finding
the size of a structure that has a zero-sized array at the end, along
with memory for some number of elements for that array. For example:
struct foo {
int stuff;
void *entry[];
};
instance = kzalloc(sizeof(struct foo) + sizeof(void *) * count, GFP_KERNEL);
Instead of leaving these open-coded and prone to type mistakes, we can
now use the new struct_size() helper:
instance = kzalloc(struct_size(instance, entry, count), GFP_KERNEL);
This code was detected with the help of Coccinelle.
Link: http://lkml.kernel.org/r/20190109172445.GA15908@embeddedor
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/process')
0 files changed, 0 insertions, 0 deletions