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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
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.. | ||
atmel_lcdc.h | ||
aty128.h | ||
broadsheetfb.h | ||
cirrus.h | ||
cvisionppc.h | ||
da8xx-fb.h | ||
display_timing.h | ||
edid.h | ||
gbe.h | ||
hecubafb.h | ||
ili9320.h | ||
imx-ipu-image-convert.h | ||
imx-ipu-v3.h | ||
kyro.h | ||
mach64.h | ||
maxinefb.h | ||
mbxfb.h | ||
metronomefb.h | ||
mipi_display.h | ||
mmp_disp.h | ||
neomagic.h | ||
newport.h | ||
of_display_timing.h | ||
of_videomode.h | ||
omap-panel-data.h | ||
omapfb_dss.h | ||
omapvrfb.h | ||
permedia2.h | ||
platform_lcd.h | ||
pm3fb.h | ||
pmag-ba-fb.h | ||
pmagb-b-fb.h | ||
pxa168fb.h | ||
radeon.h | ||
s1d13xxxfb.h | ||
sa1100fb.h | ||
samsung_fimd.h | ||
sh_mobile_lcdc.h | ||
sisfb.h | ||
sstfb.h | ||
tdfx.h | ||
tgafb.h | ||
trident.h | ||
udlfb.h | ||
uvesafb.h | ||
vga.h | ||
videomode.h | ||
w100fb.h |