Stefan Haberland 8aba7fb254 s390/dasd: print copy pair message only for the correct error ... commit 856d8e3c63 upstream. The DASD driver has certain types of requests that might be rejected by the storage server or z/VM because they are not supported. Since the missing support of the command is not a real issue there is no user visible kernel error message for this. For copy pair setups there is a specific error that IO is not allowed on secondary devices. This error case is explicitly handled and an error message is printed. The code checking for the error did use a bitwise 'and' that is used to check for specific bits. But in this case the whole sense byte has to match. This leads to the problem that the copy pair related error message is erroneously printed for other error cases that are usually not reported. This might heavily confuse users and lead to follow on actions that might disrupt application processing. Fix by checking the sense byte for the exact value and not single bits. Cc: stable@vger.kernel.org # 6.1+ Fixes: 1fca631a11 ("s390/dasd: suppress generic error messages for PPRC secondary devices") Signed-off-by: Stefan Haberland <sth@linux.ibm.com> Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com> Link: https://lore.kernel.org/r/20230721193647.3889634-5-sth@linux.ibm.com Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-08-03 10:26:12 +02:00
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block	s390/dasd: print copy pair message only for the correct error	2023-08-03 10:26:12 +02:00
char	s390 updates for the 6.4 merge window	2023-04-30 11:43:31 -07:00
cio	s390/cio: unregister device when the only path is gone	2023-05-22 12:45:44 +02:00
crypto	s390/zcrypt: fix reply buffer calculations for CCA replies	2023-07-27 08:56:35 +02:00
net	s390/ism: Do not unregister clients with registered DMBs	2023-07-23 13:53:42 +02:00
scsi	scsi: zfcp: Declare SCSI host template const	2023-03-24 19:19:20 -04:00
virtio	virtio: add VIRTIO_F_NOTIFICATION_DATA feature support	2023-04-21 03:02:35 -04:00
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