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author | Gustavo A. R. Silva <gustavo@embeddedor.com> | 2020-02-11 17:46:12 -0600 |
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committer | Mark Brown <broonie@kernel.org> | 2020-02-12 23:54:54 +0000 |
commit | d69f763fd360ec62dab9024f98209655f3046c68 (patch) | |
tree | dacc33c82e68606790eb26ddde75d6f99ae035fd /drivers/regulator/tps6507x-regulator.c | |
parent | 23a653eb1f3f16755720dde406f137441add88d0 (diff) | |
download | linux-d69f763fd360ec62dab9024f98209655f3046c68.tar.bz2 |
regulator: da9062: 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>
Acked-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Link: https://lore.kernel.org/r/20200211234612.GA28682@embeddedor
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/regulator/tps6507x-regulator.c')
0 files changed, 0 insertions, 0 deletions