scsi_get_lba breakage in 5.10 -- Re: Linux 5.10.206

From: Pavel Machek
Date: Tue Jan 09 2024 - 07:16:20 EST


Hi!

> I'm announcing the release of the 5.10.206 kernel.


> Martin K. Petersen (2):
> scsi: core: Make scsi_get_lba() return the LBA

This is bad idea. This changes return value, but without fixing
callers; there will be subtle bugs somewhere.

At minimum, we need this:

87662a472a9d8980b26ba5803447df2c4981d467 scsi: iser: Use scsi_get_sector() instead of scsi_get_lba()

That will fix iser, but there's also:

drivers/s390/scsi/zfcp_fsf.c: io->ref_tag_value = scsi_get_lba(scsi_cmnd) & 0xFFFFFFFF;
drivers/scsi/isci/request.c: tc->ref_tag_seed_gen = scsi_get_lba(scmd) & 0xffffffff;
drivers/scsi/isci/request.c: tc->ref_tag_seed_verify = scsi_get_lba(scmd) & 0xffffffff;
drivers/scsi/lpfc/lpfc_scsi.c: lba = scsi_get_lba(sc);
drivers/scsi/lpfc/lpfc_scsi.c: reftag = (uint32_t)scsi_get_lba(sc); /* Truncate LBA */
drivers/scsi/lpfc/lpfc_scsi.c: reftag = (uint32_t)scsi_get_lba(sc); /* Truncate LBA */
drivers/scsi/lpfc/lpfc_scsi.c: reftag = (uint32_t)scsi_get_lba(sc); /* Truncate LBA */
drivers/scsi/lpfc/lpfc_scsi.c: reftag = (uint32_t)scsi_get_lba(sc); /* Truncate LBA */
drivers/scsi/lpfc/lpfc_scsi.c: start_ref_tag = (uint32_t)scsi_get_lba(cmd); /* Truncate LBA */
drivers/scsi/lpfc/lpfc_scsi.c: (unsigned long)scsi_get_lba(cmd),
drivers/scsi/lpfc/lpfc_scsi.c: (unsigned long)scsi_get_lba(cmd),
drivers/scsi/lpfc/lpfc_scsi.c: (unsigned long)scsi_get_lba(cmd),
drivers/scsi/lpfc/lpfc_scsi.c: (unsigned long long)scsi_get_lba(cmd),
drivers/scsi/lpfc/lpfc_scsi.c: (unsigned long long)scsi_get_lba(cmd),
drivers/scsi/lpfc/lpfc_scsi.c: (unsigned long long)scsi_get_lba(cmd),
drivers/scsi/lpfc/lpfc_scsi.c: (unsigned long long)scsi_get_lba(cmd),
drivers/scsi/lpfc/lpfc_scsi.c: (unsigned long long)scsi_get_lba(cmd),
drivers/scsi/lpfc/lpfc_scsi.c: failing_sector = scsi_get_lba(cmd);
drivers/scsi/lpfc/lpfc_scsi.c: (unsigned long long)scsi_get_lba(cmd),
drivers/scsi/lpfc/lpfc_scsi.c: (unsigned long long)scsi_get_lba(cmnd),
drivers/scsi/lpfc/lpfc_scsi.c: (unsigned long long)scsi_get_lba(cmnd),
drivers/scsi/qla2xxx/qla_iocb.c: (0xffffffff & scsi_get_lba(cmd)));
drivers/scsi/qla2xxx/qla_iocb.c: (0xffffffff & scsi_get_lba(cmd)));
drivers/scsi/qla2xxx/qla_iocb.c: (0xffffffff & scsi_get_lba(cmd)));
drivers/scsi/qla2xxx/qla_isr.c: cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
drivers/scsi/qla2xxx/qla_isr.c: sector_t lba_s = scsi_get_lba(cmd);
include/scsi/scsi_cmnd.h:static inline sector_t scsi_get_lba(struct scsi_cmnd *scmd)

That needs to be fixed somehow. This may be quite critical due to data
corruption...?

Best regards,
Pavel
--
People of Russia, stop Putin before his war on Ukraine escalates.

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