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leds: el15203000: Annotate struct el15203000 with __counted_by
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 el15203000. [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org> Link: https://lore.kernel.org/r/20230915200955.never.871-kees@kernel.org Signed-off-by: Lee Jones <lee@kernel.org>
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@ -80,7 +80,7 @@ struct el15203000 {
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struct spi_device *spi;
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unsigned long delay;
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size_t count;
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struct el15203000_led leds[];
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struct el15203000_led leds[] __counted_by(count);
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};
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#define to_el15203000_led(d) container_of(d, struct el15203000_led, ldev)
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