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the following kernel-doc warnings: block/t10-pi.c:242: warning: Function parameter or member 'rq' not described in 't10_pi_type3_prepare' block/t10-pi.c:249: warning: Function parameter or member 'rq' not described in 't10_pi_type3_complete' block/t10-pi.c:249: warning: Function parameter or member 'nr_bytes' not described in 't10_pi_type3_complete' Cc: Max Gurtovoy <maxg@mellanox.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Ming Lei <ming.lei@redhat.com> Cc: Hannes Reinecke <hare@suse.com> Cc: Johannes Thumshirn <jthumshirn@suse.de> Fixes: 54d4e6ab91eb ("block: centralize PI remapping logic to the block layer") Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Jens Axboe <axboe@kernel.dk> 2019-09-23block: t10-pi: fix -Wswitch warningMax Gurtovoy Changing the switch() statement to symbolic constants made the compiler (at least clang-9, did not check gcc) notice that there is one enum value that is not handled here: block/t10-pi.c:62:11: error: enumeration value 'T10_PI_TYPE0_PROTECTION' not handled in switch [-Werror,-Wswitch] Add a BUG_ON statement if we ever get to t10_pi_verify function with TYPE0 and replace the switch() statement with if/else clause for the valid types. Fixes: 9b2061b1a262 ("block: use symbolic constants for t10_pi type") Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Max Gurtovoy <maxg@mellanox.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> 2019-09-17block: centralize PI remapping logic to the block layerMax Gurtovoy Currently t10_pi_prepare/t10_pi_complete functions are called during the NVMe and SCSi layers command preparetion/completion, but their actual place should be the block layer since T10-PI is a general data integrity feature that is used by block storage protocols. Introduce .prepare_fn and .complete_fn callbacks within the integrity profile that each type can implement according to its needs. Suggested-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Suggested-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Max Gurtovoy <maxg@mellanox.com> Fixed to not call queue integrity functions if BLK_DEV_INTEGRITY isn't defined in the config. Signed-off-by: Jens Axboe <axboe@kernel.dk> 2019-09-17block: use symbolic constants for t10_pi typeMax Gurtovoy Replace all hard-coded values with T10_PI_TYPES to make the code more readable. Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Max Gurtovoy <maxg@mellanox.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> 2019-04-30block: switch all files cleared marked as GPLv2 to SPDX tagsChristoph Hellwig All these files have some form of the usual GPLv2 boilerplate. Switch them to use SPDX tags instead. Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>