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authorGustavo A. R. Silva <gustavo@embeddedor.com>2020-04-07 05:10:00 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2020-04-07 19:43:42 +0200
commitc6e2ac3b476b458f9bd2069d85b95ca4634ce680 (patch)
treef8225e10a69bae399c9c7f7b5685b02080029b8f /COPYING
parentlib/bch.c: replace zero-length array with flexible-array member (diff)
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lib/ts_bm.c: replace zero-length array with flexible-array member
The current codebase makes use of the zero-length array language extension to the C90 standard, but the preferred mechanism to declare variable-length types such as these ones is a flexible array member[1][2], introduced in C99: struct foo { int stuff; struct boo array[]; }; By making use of the mechanism above, we will get a compiler warning in case the flexible array does not occur last in the structure, which will help us prevent some kind of undefined behavior bugs from being inadvertenly introduced[3] to the codebase from now on. This issue was found with the help of Coccinelle. [1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html [2] https://github.com/KSPP/linux/issues/21 [3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour") Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Link: http://lkml.kernel.org/r/20200211205620.GA24694@embeddedor Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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