linux-kernel - [PATCH 2/2] scsi: mptsas: switch from 'pci_' to 'dma_' API in 'mptsas_exp_repmanufacture

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Date:   Sun, 13 Jun 2021 12:26:53 +0200
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     sathya.prakash@...adcom.com, sreekanth.reddy@...adcom.com,
        suganath-prabu.subramani@...adcom.com
Cc:     MPT-FusionLinux.pdl@...adcom.com, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>
Subject: [PATCH 2/2] scsi: mptsas: switch from 'pci_' to 'dma_' API in 'mptsas_exp_repmanufacture_info()'

The wrappers in include/linux/pci-dma-compat.h should go away.

The only caller of 'mptsas_exp_repmanufacture_info()' is
'mptsas_probe_one_phy()'. This function already calls
'sas_end_device_alloc()' or 'sas_expander_alloc()'. They both already use
GFP_KERNEL.

As no spin_lock is held at this point, it is safe to also use GFP_KERNEL
here.


While at it, also fix an ugly alignment issue in this function.

Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
 drivers/message/fusion/mptsas.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index 1c898322316a..c6af453c7874 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -2896,7 +2896,8 @@ mptsas_exp_repmanufacture_info(MPT_ADAPTER *ioc,
 
 	sz = sizeof(struct rep_manu_request) + sizeof(struct rep_manu_reply);
 
-	data_out = pci_alloc_consistent(ioc->pcidev, sz, &data_out_dma);
+	data_out = dma_alloc_coherent(&ioc->pcidev->dev, sz, &data_out_dma,
+				      GFP_KERNEL);
 	if (!data_out) {
 		printk(KERN_ERR "Memory allocation failure at %s:%d/%s()!\n",
 			__FILE__, __LINE__, __func__);
@@ -2935,7 +2936,7 @@ mptsas_exp_repmanufacture_info(MPT_ADAPTER *ioc,
 	flagsLength = flagsLength << MPI_SGE_FLAGS_SHIFT;
 	flagsLength |= sizeof(struct rep_manu_reply);
 	ioc->add_sge(psge, flagsLength, data_out_dma +
-	sizeof(struct rep_manu_request));
+					sizeof(struct rep_manu_request));
 
 	INITIALIZE_MGMT_STATUS(ioc->sas_mgmt.status)
 	mpt_put_msg_frame(mptsasMgmtCtx, ioc, mf);
@@ -2987,7 +2988,8 @@ mptsas_exp_repmanufacture_info(MPT_ADAPTER *ioc,
 	}
 out_free:
 	if (data_out_dma)
-		pci_free_consistent(ioc->pcidev, sz, data_out, data_out_dma);
+		dma_free_coherent(&ioc->pcidev->dev, sz, data_out,
+				  data_out_dma);
 put_mf:
 	if (mf)
 		mpt_free_msg_frame(ioc, mf);
-- 
2.30.2