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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; struct boo entry[]; }; size = sizeof(struct foo) + count * sizeof(struct boo); instance = kzalloc(size, 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); Notice that, in this case, variable size is not necessary, hence it is removed. This code was detected with the help of Coccinelle. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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core_intr.c | ||
core.c | ||
core.h | ||
debug.h | ||
debugfs.c | ||
gadget.c | ||
hcd_ddma.c | ||
hcd_intr.c | ||
hcd_queue.c | ||
hcd.c | ||
hcd.h | ||
hw.h | ||
Kconfig | ||
Makefile | ||
params.c | ||
pci.c | ||
platform.c |