Doorbell and Host diagnostic registers could return 0 even after 3 retries and that leads to occasional resets of the controllers, hence increased the retry count to thirty. v1->v2: -added a new patch for volatile as suggested by Greg KH. -renamed macro as suggested by Damien Le Moal. v2->v3: -Modified patch description with more details. Ranjan Kumar (2): Perform additional retries if Doorbell read returns 0 mpt3sas: Removing volatile qualifier drivers/scsi/mpt3sas/mpi/mpi2.h | 2 +- drivers/scsi/mpt3sas/mpt3sas_base.c | 53 ++++++++++++++++------------- drivers/scsi/mpt3sas/mpt3sas_base.h | 11 +++++- 3 files changed, 40 insertions(+), 26 deletions(-) -- 2.31.1
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