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netns: Replace zero-length array with DECLARE_FLEX_ARRAY() helper

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Zero-length arrays are deprecated and we are moving towards adopting
C99 flexible-array members, instead. So, replace zero-length arrays
declarations in anonymous union with the new DECLARE_FLEX_ARRAY()
helper macro.

This helper allows for flexible-array members in unions.

Link: https://github.com/KSPP/linux/issues/193
Link: https://github.com/KSPP/linux/issues/225
Link: https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/YzIvfGXxfjdXmIS3@work
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Gustavo A. R. Silva 2022-09-26 18:02:20 -05:00 committed by Jakub Kicinski
parent 578b054684
commit 63a8bf8556
1 changed files with 1 additions and 1 deletions
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2
include/net/netns/generic.h
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@ -33,7 +33,7 @@ struct net_generic {
struct rcu_head rcu;
} s;
void *ptr[0];
DECLARE_FLEX_ARRAY(void *, ptr);
};
};