Message ID | 20211118235756.1128122-1-tadeusz.struk@linaro.org (mailing list archive) |
---|---|
State | New, archived |
Headers | show |
Series | [5.14] block: Add a helper to validate the block size | expand |
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index e7979fe7e4fa..84019910446a 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -59,6 +59,14 @@ struct blk_keyslot_manager; */ #define BLKCG_MAX_POLS 6 +static inline int blk_validate_block_size(unsigned int bsize) +{ + if (bsize < 512 || bsize > PAGE_SIZE || !is_power_of_2(bsize)) + return -EINVAL; + + return 0; +} + typedef void (rq_end_io_fn)(struct request *, blk_status_t); /*