mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-25 18:35:09 +07:00
7cd08d6eed
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
inadvertently introduced[3] to the codebase from now on.
Also, notice that, dynamic memory allocations won't be affected by
this change:
"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of
zero-length arrays, sizeof evaluates to zero."[1]
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
|
||
|---|---|---|
| .. | ||
| airspy | ||
| as102 | ||
| au0828 | ||
| b2c2 | ||
| cpia2 | ||
| cx231xx | ||
| dvb-usb | ||
| dvb-usb-v2 | ||
| em28xx | ||
| go7007 | ||
| gspca | ||
| hackrf | ||
| hdpvr | ||
| msi2500 | ||
| pvrusb2 | ||
| pwc | ||
| s2255 | ||
| siano | ||
| stk1160 | ||
| stkwebcam | ||
| tm6000 | ||
| ttusb-budget | ||
| ttusb-dec | ||
| usbtv | ||
| uvc | ||
| zr364xx | ||
| Kconfig | ||
| Makefile | ||