From 70493a63ba04f754f7a7dd53a4fcc82700181490 Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Wed, 15 Mar 2023 11:39:03 -0700 Subject: blk-crypto: make blk_crypto_evict_key() return void blk_crypto_evict_key() is only called in contexts such as inode eviction where failure is not an option. So there is nothing the caller can do with errors except log them. (dm-table.c does "use" the error code, but only to pass on to upper layers, so it doesn't really count.) Just make blk_crypto_evict_key() return void and log errors itself. Cc: stable@vger.kernel.org Signed-off-by: Eric Biggers Reviewed-by: Christoph Hellwig Link: https://lore.kernel.org/r/20230315183907.53675-2-ebiggers@kernel.org Signed-off-by: Jens Axboe --- block/blk-crypto.c | 20 +++++++++----------- 1 file changed, 9 insertions(+), 11 deletions(-) (limited to 'block') diff --git a/block/blk-crypto.c b/block/blk-crypto.c index d0c7feb447e9..e800f305e9ed 100644 --- a/block/blk-crypto.c +++ b/block/blk-crypto.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include "blk-crypto-internal.h" @@ -408,21 +409,18 @@ int blk_crypto_start_using_key(struct block_device *bdev, * Upper layers (filesystems) must call this function to ensure that a key is * evicted from any hardware that it might have been programmed into. The key * must not be in use by any in-flight IO when this function is called. - * - * Return: 0 on success or if the key wasn't in any keyslot; -errno on error. */ -int blk_crypto_evict_key(struct block_device *bdev, - const struct blk_crypto_key *key) +void blk_crypto_evict_key(struct block_device *bdev, + const struct blk_crypto_key *key) { struct request_queue *q = bdev_get_queue(bdev); + int err; if (blk_crypto_config_supported_natively(bdev, &key->crypto_cfg)) - return __blk_crypto_evict_key(q->crypto_profile, key); - - /* - * If the block_device didn't support the key, then blk-crypto-fallback - * may have been used, so try to evict the key from blk-crypto-fallback. - */ - return blk_crypto_fallback_evict_key(key); + err = __blk_crypto_evict_key(q->crypto_profile, key); + else + err = blk_crypto_fallback_evict_key(key); + if (err) + pr_warn_ratelimited("%pg: error %d evicting key\n", bdev, err); } EXPORT_SYMBOL_GPL(blk_crypto_evict_key); -- cgit v1.2.3