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| author | Gustavo A. R. Silva <gustavo@embeddedor.com> | 2020-02-11 17:14:21 -0600 |
|---|---|---|
| committer | Ard Biesheuvel <ardb@kernel.org> | 2020-02-22 23:37:37 +0100 |
| commit | 3b9274ea1c0279b369212ccd440c9d61efdfa562 (patch) | |
| tree | c0b8575d162e693178bafc625f0943adc2d96601 /tools/perf/scripts/python | |
| parent | efi/libstub/arm64: Use 1:1 mapping of RT services if property table exists (diff) | |
| download | linux-3b9274ea1c0279b369212ccd440c9d61efdfa562.tar.gz linux-3b9274ea1c0279b369212ccd440c9d61efdfa562.zip | |
efi/apple-properties: 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>
Link: https://lore.kernel.org/r/20200211231421.GA15697@embeddedor
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions