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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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9a1ace64ca
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 ieee80211_regdomain {
...
struct ieee80211_reg_rule reg_rules[];
};
instance = kzalloc(sizeof(*mac->rd) +
sizeof(struct ieee80211_reg_rule) *
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, reg_rules, count), GFP_KERNEL);
This code was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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|---|---|---|
| .. | ||
| pcie | ||
| bus.h | ||
| cfg80211.c | ||
| cfg80211.h | ||
| commands.c | ||
| commands.h | ||
| core.c | ||
| core.h | ||
| debug.c | ||
| debug.h | ||
| event.c | ||
| event.h | ||
| Kconfig | ||
| Makefile | ||
| qlink_util.c | ||
| qlink_util.h | ||
| qlink.h | ||
| qtn_hw_ids.h | ||
| shm_ipc_defs.h | ||
| shm_ipc.c | ||
| shm_ipc.h | ||
| trans.c | ||
| trans.h | ||
| util.c | ||
| util.h | ||