In commit af7ddd8a627c ("Merge tag 'dma-mapping-4.21' of git://git.infradead.org/users/hch/dma-mapping"), dma_alloc_coherent has already zeroed the memory. So memset is not needed. Signed-off-by: Fuqian Huang <huangfq.daxian@xxxxxxxxx> --- drivers/scsi/mpt3sas/mpt3sas_transport.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/scsi/mpt3sas/mpt3sas_transport.c b/drivers/scsi/mpt3sas/mpt3sas_transport.c index 60ae2d0feb2b..b09af57840d8 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_transport.c +++ b/drivers/scsi/mpt3sas/mpt3sas_transport.c @@ -1111,7 +1111,6 @@ _transport_get_expander_phy_error_log(struct MPT3SAS_ADAPTER *ioc, } rc = -EINVAL; - memset(data_out, 0, sz); phy_error_log_request = data_out; phy_error_log_request->smp_frame_type = 0x40; phy_error_log_request->function = 0x11; @@ -1401,7 +1400,6 @@ _transport_expander_phy_control(struct MPT3SAS_ADAPTER *ioc, } rc = -EINVAL; - memset(data_out, 0, sz); phy_control_request = data_out; phy_control_request->smp_frame_type = 0x40; phy_control_request->function = 0x91; -- 2.11.0