Re: [PATCH 5/6] scsi: qla2xxx: Cocci spatch "pool_zalloc-simple"
Thomas, > Use *_pool_zalloc rather than *_pool_alloc followed by memset with 0. > Found by coccinelle spatch "api/alloc/pool_zalloc-simple.cocci" Applied to 4.15/scsi-queue. Thanks! -- Martin K. Petersen Oracle Linux Engineering
Re: [PATCH 5/6] scsi: qla2xxx: Cocci spatch "pool_zalloc-simple"
> On Sep 20, 2017, at 11:15 PM, Thomas Meyerwrote: > > Use *_pool_zalloc rather than *_pool_alloc followed by memset with 0. > Found by coccinelle spatch "api/alloc/pool_zalloc-simple.cocci" > > Signed-off-by: Thomas Meyer > --- > > diff -u -p a/drivers/scsi/qla2xxx/qla_bsg.c b/drivers/scsi/qla2xxx/qla_bsg.c > --- a/drivers/scsi/qla2xxx/qla_bsg.c > +++ b/drivers/scsi/qla2xxx/qla_bsg.c > @@ -1116,14 +1116,13 @@ qla84xx_mgmt_cmd(struct bsg_job *bsg_job > return -EINVAL; > } > > - mn = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, _dma); > + mn = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, _dma); > if (!mn) { > ql_log(ql_log_warn, vha, 0x703c, > "DMA alloc failed for fw buffer.\n"); > return -ENOMEM; > } > > - memset(mn, 0, sizeof(struct access_chip_84xx)); > mn->entry_type = ACCESS_CHIP_IOCB_TYPE; > mn->entry_count = 1; > ql84_mgmt = (void *)bsg_request + sizeof(struct fc_bsg_request); > diff -u -p a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c > --- a/drivers/scsi/qla2xxx/qla_init.c > +++ b/drivers/scsi/qla2xxx/qla_init.c > @@ -812,13 +812,12 @@ int qla24xx_async_gpdb(struct scsi_qla_h > sp->gen2 = fcport->login_gen; > qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2); > > - pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, _dma); > + pd = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, _dma); > if (pd == NULL) { > ql_log(ql_log_warn, vha, 0xd043, > "Failed to allocate port database structure.\n"); > goto done_free_sp; > } > - memset(pd, 0, max(PORT_DATABASE_SIZE, PORT_DATABASE_24XX_SIZE)); > > mb = sp->u.iocb_cmd.u.mbx.out_mb; > mb[0] = MBC_GET_PORT_DATABASE; > diff -u -p a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c > --- a/drivers/scsi/qla2xxx/qla_mbx.c > +++ b/drivers/scsi/qla2xxx/qla_mbx.c > @@ -1782,13 +1782,12 @@ qla2x00_get_port_database(scsi_qla_host_ > "Entered %s.\n", __func__); > > pd24 = NULL; > - pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, _dma); > + pd = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, _dma); > if (pd == NULL) { > ql_log(ql_log_warn, vha, 0x1050, > "Failed to allocate port database structure.\n"); > return QLA_MEMORY_ALLOC_FAILED; > } > - memset(pd, 0, max(PORT_DATABASE_SIZE, PORT_DATABASE_24XX_SIZE)); > > mcp->mb[0] = MBC_GET_PORT_DATABASE; > if (opt != 0 && !IS_FWI2_CAPABLE(ha)) > @@ -2255,13 +2254,12 @@ qla24xx_login_fabric(scsi_qla_host_t *vh > else > req = ha->req_q_map[0]; > > - lg = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, _dma); > + lg = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, _dma); > if (lg == NULL) { > ql_log(ql_log_warn, vha, 0x1062, > "Failed to allocate login IOCB.\n"); > return QLA_MEMORY_ALLOC_FAILED; > } > - memset(lg, 0, sizeof(struct logio_entry_24xx)); > > lg->entry_type = LOGINOUT_PORT_IOCB_TYPE; > lg->entry_count = 1; > @@ -2525,13 +2523,12 @@ qla24xx_fabric_logout(scsi_qla_host_t *v > ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x106d, > "Entered %s.\n", __func__); > > - lg = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, _dma); > + lg = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, _dma); > if (lg == NULL) { > ql_log(ql_log_warn, vha, 0x106e, > "Failed to allocate logout IOCB.\n"); > return QLA_MEMORY_ALLOC_FAILED; > } > - memset(lg, 0, sizeof(struct logio_entry_24xx)); > > req = vha->req; > lg->entry_type = LOGINOUT_PORT_IOCB_TYPE; > @@ -2820,13 +2817,12 @@ qla2x00_get_fcal_position_map(scsi_qla_h > ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x107f, > "Entered %s.\n", __func__); > > - pmap = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, _dma); > + pmap = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, _dma); > if (pmap == NULL) { > ql_log(ql_log_warn, vha, 0x1080, > "Memory alloc failed.\n"); > return QLA_MEMORY_ALLOC_FAILED; > } > - memset(pmap, 0, FCAL_MAP_SIZE); > > mcp->mb[0] = MBC_GET_FC_AL_POSITION_MAP; > mcp->mb[2] = MSW(pmap_dma); > @@ -3014,13 +3010,12 @@ qla24xx_abort_command(srb_t *sp) > return QLA_FUNCTION_FAILED; > } > > - abt = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, _dma); > + abt = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, _dma); > if (abt == NULL) { > ql_log(ql_log_warn, vha, 0x108d, > "Failed to allocate abort IOCB.\n"); > return QLA_MEMORY_ALLOC_FAILED; > } > - memset(abt, 0, sizeof(struct abort_entry_24xx)); > > abt->entry_type = ABORT_IOCB_TYPE; >
[PATCH 5/6] scsi: qla2xxx: Cocci spatch "pool_zalloc-simple"
Use *_pool_zalloc rather than *_pool_alloc followed by memset with 0. Found by coccinelle spatch "api/alloc/pool_zalloc-simple.cocci" Signed-off-by: Thomas Meyer--- diff -u -p a/drivers/scsi/qla2xxx/qla_bsg.c b/drivers/scsi/qla2xxx/qla_bsg.c --- a/drivers/scsi/qla2xxx/qla_bsg.c +++ b/drivers/scsi/qla2xxx/qla_bsg.c @@ -1116,14 +1116,13 @@ qla84xx_mgmt_cmd(struct bsg_job *bsg_job return -EINVAL; } - mn = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, _dma); + mn = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, _dma); if (!mn) { ql_log(ql_log_warn, vha, 0x703c, "DMA alloc failed for fw buffer.\n"); return -ENOMEM; } - memset(mn, 0, sizeof(struct access_chip_84xx)); mn->entry_type = ACCESS_CHIP_IOCB_TYPE; mn->entry_count = 1; ql84_mgmt = (void *)bsg_request + sizeof(struct fc_bsg_request); diff -u -p a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -812,13 +812,12 @@ int qla24xx_async_gpdb(struct scsi_qla_h sp->gen2 = fcport->login_gen; qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2); - pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, _dma); + pd = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, _dma); if (pd == NULL) { ql_log(ql_log_warn, vha, 0xd043, "Failed to allocate port database structure.\n"); goto done_free_sp; } - memset(pd, 0, max(PORT_DATABASE_SIZE, PORT_DATABASE_24XX_SIZE)); mb = sp->u.iocb_cmd.u.mbx.out_mb; mb[0] = MBC_GET_PORT_DATABASE; diff -u -p a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -1782,13 +1782,12 @@ qla2x00_get_port_database(scsi_qla_host_ "Entered %s.\n", __func__); pd24 = NULL; - pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, _dma); + pd = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, _dma); if (pd == NULL) { ql_log(ql_log_warn, vha, 0x1050, "Failed to allocate port database structure.\n"); return QLA_MEMORY_ALLOC_FAILED; } - memset(pd, 0, max(PORT_DATABASE_SIZE, PORT_DATABASE_24XX_SIZE)); mcp->mb[0] = MBC_GET_PORT_DATABASE; if (opt != 0 && !IS_FWI2_CAPABLE(ha)) @@ -2255,13 +2254,12 @@ qla24xx_login_fabric(scsi_qla_host_t *vh else req = ha->req_q_map[0]; - lg = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, _dma); + lg = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, _dma); if (lg == NULL) { ql_log(ql_log_warn, vha, 0x1062, "Failed to allocate login IOCB.\n"); return QLA_MEMORY_ALLOC_FAILED; } - memset(lg, 0, sizeof(struct logio_entry_24xx)); lg->entry_type = LOGINOUT_PORT_IOCB_TYPE; lg->entry_count = 1; @@ -2525,13 +2523,12 @@ qla24xx_fabric_logout(scsi_qla_host_t *v ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x106d, "Entered %s.\n", __func__); - lg = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, _dma); + lg = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, _dma); if (lg == NULL) { ql_log(ql_log_warn, vha, 0x106e, "Failed to allocate logout IOCB.\n"); return QLA_MEMORY_ALLOC_FAILED; } - memset(lg, 0, sizeof(struct logio_entry_24xx)); req = vha->req; lg->entry_type = LOGINOUT_PORT_IOCB_TYPE; @@ -2820,13 +2817,12 @@ qla2x00_get_fcal_position_map(scsi_qla_h ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x107f, "Entered %s.\n", __func__); - pmap = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, _dma); + pmap = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, _dma); if (pmap == NULL) { ql_log(ql_log_warn, vha, 0x1080, "Memory alloc failed.\n"); return QLA_MEMORY_ALLOC_FAILED; } - memset(pmap, 0, FCAL_MAP_SIZE); mcp->mb[0] = MBC_GET_FC_AL_POSITION_MAP; mcp->mb[2] = MSW(pmap_dma); @@ -3014,13 +3010,12 @@ qla24xx_abort_command(srb_t *sp) return QLA_FUNCTION_FAILED; } - abt = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, _dma); + abt = dma_pool_zalloc(ha->s_dma_pool, GFP_KERNEL, _dma); if (abt == NULL) { ql_log(ql_log_warn, vha, 0x108d, "Failed to allocate abort IOCB.\n"); return QLA_MEMORY_ALLOC_FAILED; } - memset(abt, 0, sizeof(struct abort_entry_24xx)); abt->entry_type = ABORT_IOCB_TYPE; abt->entry_count = 1; @@ -3098,13 +3093,12 @@ __qla24xx_issue_tmf(char *name, uint32_t rsp = req->rsp; } -