Messages in this thread Patch in this message | | | From | Andy Shevchenko <> | Subject | [PATCH v1 1/1] gpiolib: cdev: Annotate struct linereq with __counted_by() | Date | Mon, 18 Sep 2023 12:15:53 +0300 |
| |
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).
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> --- drivers/gpio/gpiolib-cdev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpio/gpiolib-cdev.c b/drivers/gpio/gpiolib-cdev.c index a5bbbd44531f..e23f06f58234 100644 --- a/drivers/gpio/gpiolib-cdev.c +++ b/drivers/gpio/gpiolib-cdev.c @@ -572,7 +572,7 @@ struct linereq { DECLARE_KFIFO_PTR(events, struct gpio_v2_line_event); atomic_t seqno; struct mutex config_mutex; - struct line lines[]; + struct line lines[] __counted_by(num_lines); }; #define GPIO_V2_LINE_BIAS_FLAGS \ -- 2.40.0.1.gaa8946217a0b
| |