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00def7130a
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 = kmalloc(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 = kmalloc(struct_size(instance, entry, count), GFP_KERNEL);
This code was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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| .. | ||
| .gitignore | ||
| backing_ops.c | ||
| context.c | ||
| coredump.c | ||
| fault.c | ||
| file.c | ||
| gang.c | ||
| hw_ops.c | ||
| inode.c | ||
| lscsa_alloc.c | ||
| Makefile | ||
| run.c | ||
| sched.c | ||
| spu_restore_crt0.S | ||
| spu_restore_dump.h_shipped | ||
| spu_restore.c | ||
| spu_save_crt0.S | ||
| spu_save_dump.h_shipped | ||
| spu_save.c | ||
| spu_utils.h | ||
| spufs.h | ||
| sputrace.h | ||
| switch.c | ||
| syscalls.c | ||