Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-12-29 14:21:47 +00:00
Code Issues Packages Projects Releases Wiki Activity

power: supply: axp20x_usb_power: Annotate struct axp20x_usb_power with __counted_by

Browse Source 
Prepare for the coming implementation by GCC and Clang of the __counted_by
attribute. Flexible array members annotated with __counted_by can have
their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS
(for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family
functions).

As found with Coccinelle[1], add __counted_by for struct axp20x_usb_power.

[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci

Cc: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20230922175358.work.774-kees@kernel.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This commit is contained in:
Kees Cook 2023-09-22 10:53:58 -07:00 committed by Sebastian Reichel
parent 7daa3bd4b0
commit de1ca06bc0
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/power/supply/axp20x_usb_power.c
View File

@ -73,7 +73,7 @@ struct axp20x_usb_power {
unsigned int old_status;
unsigned int online;
unsigned int num_irqs;
unsigned int irqs[];
unsigned int irqs[] __counted_by(num_irqs);
};
static bool axp20x_usb_vbus_needs_polling(struct axp20x_usb_power *power)