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Date:   Mon, 27 Feb 2017 12:16:18 +0100
From:   Peter Senna Tschudin <peter.senna@...labora.com>
To:     Romain Perier <romain.perier@...labora.com>
Cc:     Dan Williams <dan.j.williams@...el.com>,
        Doug Ledford <dledford@...hat.com>,
        Sean Hefty <sean.hefty@...el.com>,
        Hal Rosenstock <hal.rosenstock@...il.com>,
        jeffrey.t.kirsher@...el.com,
        "David S. Miller" <davem@...emloft.net>, stas.yakovlev@...il.com,
        "James E.J. Bottomley" <jejb@...ux.vnet.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Felipe Balbi <balbi@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-rdma@...r.kernel.org, netdev@...r.kernel.org,
        linux-usb@...r.kernel.org, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Peter Senna Tschudin <peter.senna@...labora.co.uk>
Subject: Re: [PATCH v3 11/20] scsi: megaraid: Replace PCI pool old API

On Sun, Feb 26, 2017 at 08:24:16PM +0100, Romain Perier wrote:
> The PCI pool API is deprecated. This commits replaces the PCI pool old
> API by the appropriated function with the DMA pool API.
> 
Reviewed-by: Peter Senna Tschudin <peter.senna@...labora.com>
> Signed-off-by: Romain Perier <romain.perier@...labora.com>
> ---
>  drivers/scsi/megaraid/megaraid_mbox.c       | 33 +++++++--------
>  drivers/scsi/megaraid/megaraid_mm.c         | 32 +++++++-------
>  drivers/scsi/megaraid/megaraid_sas_base.c   | 29 +++++++------
>  drivers/scsi/megaraid/megaraid_sas_fusion.c | 66 +++++++++++++----------------
>  4 files changed, 77 insertions(+), 83 deletions(-)
> 
> diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c
> index f0987f2..7dfc2e2 100644
> --- a/drivers/scsi/megaraid/megaraid_mbox.c
> +++ b/drivers/scsi/megaraid/megaraid_mbox.c
> @@ -1153,8 +1153,8 @@ megaraid_mbox_setup_dma_pools(adapter_t *adapter)
>  
>  
>  	// Allocate memory for 16-bytes aligned mailboxes
> -	raid_dev->mbox_pool_handle = pci_pool_create("megaraid mbox pool",
> -						adapter->pdev,
> +	raid_dev->mbox_pool_handle = dma_pool_create("megaraid mbox pool",
> +						&adapter->pdev->dev,
>  						sizeof(mbox64_t) + 16,
>  						16, 0);
>  
> @@ -1164,7 +1164,7 @@ megaraid_mbox_setup_dma_pools(adapter_t *adapter)
>  
>  	mbox_pci_blk = raid_dev->mbox_pool;
>  	for (i = 0; i < MBOX_MAX_SCSI_CMDS; i++) {
> -		mbox_pci_blk[i].vaddr = pci_pool_alloc(
> +		mbox_pci_blk[i].vaddr = dma_pool_alloc(
>  						raid_dev->mbox_pool_handle,
>  						GFP_KERNEL,
>  						&mbox_pci_blk[i].dma_addr);
> @@ -1181,8 +1181,8 @@ megaraid_mbox_setup_dma_pools(adapter_t *adapter)
>  	 * share common memory pool. Passthru structures piggyback on memory
>  	 * allocted to extended passthru since passthru is smaller of the two
>  	 */
> -	raid_dev->epthru_pool_handle = pci_pool_create("megaraid mbox pthru",
> -			adapter->pdev, sizeof(mraid_epassthru_t), 128, 0);
> +	raid_dev->epthru_pool_handle = dma_pool_create("megaraid mbox pthru",
> +			&adapter->pdev->dev, sizeof(mraid_epassthru_t), 128, 0);
>  
>  	if (raid_dev->epthru_pool_handle == NULL) {
>  		goto fail_setup_dma_pool;
> @@ -1190,7 +1190,7 @@ megaraid_mbox_setup_dma_pools(adapter_t *adapter)
>  
>  	epthru_pci_blk = raid_dev->epthru_pool;
>  	for (i = 0; i < MBOX_MAX_SCSI_CMDS; i++) {
> -		epthru_pci_blk[i].vaddr = pci_pool_alloc(
> +		epthru_pci_blk[i].vaddr = dma_pool_alloc(
>  						raid_dev->epthru_pool_handle,
>  						GFP_KERNEL,
>  						&epthru_pci_blk[i].dma_addr);
> @@ -1202,8 +1202,8 @@ megaraid_mbox_setup_dma_pools(adapter_t *adapter)
>  
>  	// Allocate memory for each scatter-gather list. Request for 512 bytes
>  	// alignment for each sg list
> -	raid_dev->sg_pool_handle = pci_pool_create("megaraid mbox sg",
> -					adapter->pdev,
> +	raid_dev->sg_pool_handle = dma_pool_create("megaraid mbox sg",
> +					&adapter->pdev->dev,
>  					sizeof(mbox_sgl64) * MBOX_MAX_SG_SIZE,
>  					512, 0);
>  
> @@ -1213,7 +1213,7 @@ megaraid_mbox_setup_dma_pools(adapter_t *adapter)
>  
>  	sg_pci_blk = raid_dev->sg_pool;
>  	for (i = 0; i < MBOX_MAX_SCSI_CMDS; i++) {
> -		sg_pci_blk[i].vaddr = pci_pool_alloc(
> +		sg_pci_blk[i].vaddr = dma_pool_alloc(
>  						raid_dev->sg_pool_handle,
>  						GFP_KERNEL,
>  						&sg_pci_blk[i].dma_addr);
> @@ -1249,29 +1249,26 @@ megaraid_mbox_teardown_dma_pools(adapter_t *adapter)
>  
>  	sg_pci_blk = raid_dev->sg_pool;
>  	for (i = 0; i < MBOX_MAX_SCSI_CMDS && sg_pci_blk[i].vaddr; i++) {
> -		pci_pool_free(raid_dev->sg_pool_handle, sg_pci_blk[i].vaddr,
> +		dma_pool_free(raid_dev->sg_pool_handle, sg_pci_blk[i].vaddr,
>  			sg_pci_blk[i].dma_addr);
>  	}
> -	if (raid_dev->sg_pool_handle)
> -		pci_pool_destroy(raid_dev->sg_pool_handle);
> +	dma_pool_destroy(raid_dev->sg_pool_handle);
>  
>  
>  	epthru_pci_blk = raid_dev->epthru_pool;
>  	for (i = 0; i < MBOX_MAX_SCSI_CMDS && epthru_pci_blk[i].vaddr; i++) {
> -		pci_pool_free(raid_dev->epthru_pool_handle,
> +		dma_pool_free(raid_dev->epthru_pool_handle,
>  			epthru_pci_blk[i].vaddr, epthru_pci_blk[i].dma_addr);
>  	}
> -	if (raid_dev->epthru_pool_handle)
> -		pci_pool_destroy(raid_dev->epthru_pool_handle);
> +	dma_pool_destroy(raid_dev->epthru_pool_handle);
>  
>  
>  	mbox_pci_blk = raid_dev->mbox_pool;
>  	for (i = 0; i < MBOX_MAX_SCSI_CMDS && mbox_pci_blk[i].vaddr; i++) {
> -		pci_pool_free(raid_dev->mbox_pool_handle,
> +		dma_pool_free(raid_dev->mbox_pool_handle,
>  			mbox_pci_blk[i].vaddr, mbox_pci_blk[i].dma_addr);
>  	}
> -	if (raid_dev->mbox_pool_handle)
> -		pci_pool_destroy(raid_dev->mbox_pool_handle);
> +	dma_pool_destroy(raid_dev->mbox_pool_handle);
>  
>  	return;
>  }
> diff --git a/drivers/scsi/megaraid/megaraid_mm.c b/drivers/scsi/megaraid/megaraid_mm.c
> index 4cf9ed9..2324dd8 100644
> --- a/drivers/scsi/megaraid/megaraid_mm.c
> +++ b/drivers/scsi/megaraid/megaraid_mm.c
> @@ -574,7 +574,7 @@ mraid_mm_attach_buf(mraid_mmadp_t *adp, uioc_t *kioc, int xferlen)
>  
>  	kioc->pool_index	= right_pool;
>  	kioc->free_buf		= 1;
> -	kioc->buf_vaddr 	= pci_pool_alloc(pool->handle, GFP_KERNEL,
> +	kioc->buf_vaddr		= dma_pool_alloc(pool->handle, GFP_KERNEL,
>  							&kioc->buf_paddr);
>  	spin_unlock_irqrestore(&pool->lock, flags);
>  
> @@ -658,7 +658,7 @@ mraid_mm_dealloc_kioc(mraid_mmadp_t *adp, uioc_t *kioc)
>  		 * not in use
>  		 */
>  		if (kioc->free_buf == 1)
> -			pci_pool_free(pool->handle, kioc->buf_vaddr, 
> +			dma_pool_free(pool->handle, kioc->buf_vaddr,
>  							kioc->buf_paddr);
>  		else
>  			pool->in_use = 0;
> @@ -940,8 +940,8 @@ mraid_mm_register_adp(mraid_mmadp_t *lld_adp)
>  						GFP_KERNEL);
>  	adapter->mbox_list	= kmalloc(sizeof(mbox64_t) * lld_adp->max_kioc,
>  						GFP_KERNEL);
> -	adapter->pthru_dma_pool = pci_pool_create("megaraid mm pthru pool",
> -						adapter->pdev,
> +	adapter->pthru_dma_pool = dma_pool_create("megaraid mm pthru pool",
> +						&adapter->pdev->dev,
>  						sizeof(mraid_passthru_t),
>  						16, 0);
>  
> @@ -970,7 +970,7 @@ mraid_mm_register_adp(mraid_mmadp_t *lld_adp)
>  
>  		kioc		= adapter->kioc_list + i;
>  		kioc->cmdbuf	= (uint64_t)(unsigned long)(mbox_list + i);
> -		kioc->pthru32	= pci_pool_alloc(adapter->pthru_dma_pool,
> +		kioc->pthru32	= dma_pool_alloc(adapter->pthru_dma_pool,
>  						GFP_KERNEL, &kioc->pthru32_h);
>  
>  		if (!kioc->pthru32) {
> @@ -1006,7 +1006,7 @@ mraid_mm_register_adp(mraid_mmadp_t *lld_adp)
>  	for (i = 0; i < lld_adp->max_kioc; i++) {
>  		kioc = adapter->kioc_list + i;
>  		if (kioc->pthru32) {
> -			pci_pool_free(adapter->pthru_dma_pool, kioc->pthru32,
> +			dma_pool_free(adapter->pthru_dma_pool, kioc->pthru32,
>  				kioc->pthru32_h);
>  		}
>  	}
> @@ -1016,8 +1016,7 @@ mraid_mm_register_adp(mraid_mmadp_t *lld_adp)
>  	kfree(adapter->kioc_list);
>  	kfree(adapter->mbox_list);
>  
> -	if (adapter->pthru_dma_pool)
> -		pci_pool_destroy(adapter->pthru_dma_pool);
> +	dma_pool_destroy(adapter->pthru_dma_pool);
>  
>  	kfree(adapter);
>  
> @@ -1086,15 +1085,16 @@ mraid_mm_setup_dma_pools(mraid_mmadp_t *adp)
>  		pool->buf_size = bufsize;
>  		spin_lock_init(&pool->lock);
>  
> -		pool->handle = pci_pool_create("megaraid mm data buffer",
> -						adp->pdev, bufsize, 16, 0);
> +		pool->handle = dma_pool_create("megaraid mm data buffer",
> +					       &adp->pdev->dev, bufsize, 16,
> +					       0);
>  
>  		if (!pool->handle) {
>  			goto dma_pool_setup_error;
>  		}
>  
> -		pool->vaddr = pci_pool_alloc(pool->handle, GFP_KERNEL,
> -							&pool->paddr);
> +		pool->vaddr = dma_pool_alloc(pool->handle, GFP_KERNEL,
> +					     &pool->paddr);
>  
>  		if (!pool->vaddr)
>  			goto dma_pool_setup_error;
> @@ -1163,14 +1163,14 @@ mraid_mm_free_adp_resources(mraid_mmadp_t *adp)
>  
>  		kioc = adp->kioc_list + i;
>  
> -		pci_pool_free(adp->pthru_dma_pool, kioc->pthru32,
> +		dma_pool_free(adp->pthru_dma_pool, kioc->pthru32,
>  				kioc->pthru32_h);
>  	}
>  
>  	kfree(adp->kioc_list);
>  	kfree(adp->mbox_list);
>  
> -	pci_pool_destroy(adp->pthru_dma_pool);
> +	dma_pool_destroy(adp->pthru_dma_pool);
>  
>  
>  	return;
> @@ -1194,10 +1194,10 @@ mraid_mm_teardown_dma_pools(mraid_mmadp_t *adp)
>  		if (pool->handle) {
>  
>  			if (pool->vaddr)
> -				pci_pool_free(pool->handle, pool->vaddr,
> +				dma_pool_free(pool->handle, pool->vaddr,
>  							pool->paddr);
>  
> -			pci_pool_destroy(pool->handle);
> +			dma_pool_destroy(pool->handle);
>  			pool->handle = NULL;
>  		}
>  	}
> diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
> index 7ac9a9e..bd32bfc 100644
> --- a/drivers/scsi/megaraid/megaraid_sas_base.c
> +++ b/drivers/scsi/megaraid/megaraid_sas_base.c
> @@ -3859,19 +3859,19 @@ static void megasas_teardown_frame_pool(struct megasas_instance *instance)
>  		cmd = instance->cmd_list[i];
>  
>  		if (cmd->frame)
> -			pci_pool_free(instance->frame_dma_pool, cmd->frame,
> +			dma_pool_free(instance->frame_dma_pool, cmd->frame,
>  				      cmd->frame_phys_addr);
>  
>  		if (cmd->sense)
> -			pci_pool_free(instance->sense_dma_pool, cmd->sense,
> +			dma_pool_free(instance->sense_dma_pool, cmd->sense,
>  				      cmd->sense_phys_addr);
>  	}
>  
>  	/*
>  	 * Now destroy the pool itself
>  	 */
> -	pci_pool_destroy(instance->frame_dma_pool);
> -	pci_pool_destroy(instance->sense_dma_pool);
> +	dma_pool_destroy(instance->frame_dma_pool);
> +	dma_pool_destroy(instance->sense_dma_pool);
>  
>  	instance->frame_dma_pool = NULL;
>  	instance->sense_dma_pool = NULL;
> @@ -3922,22 +3922,24 @@ static int megasas_create_frame_pool(struct megasas_instance *instance)
>  	/*
>  	 * Use DMA pool facility provided by PCI layer
>  	 */
> -	instance->frame_dma_pool = pci_pool_create("megasas frame pool",
> -					instance->pdev, instance->mfi_frame_size,
> -					256, 0);
> +	instance->frame_dma_pool = dma_pool_create("megasas frame pool",
> +						   &instance->pdev->dev,
> +						   instance->mfi_frame_size,
> +						   256, 0);
>  
>  	if (!instance->frame_dma_pool) {
>  		dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup frame pool\n");
>  		return -ENOMEM;
>  	}
>  
> -	instance->sense_dma_pool = pci_pool_create("megasas sense pool",
> -						   instance->pdev, 128, 4, 0);
> +	instance->sense_dma_pool = dma_pool_create("megasas sense pool",
> +						   &instance->pdev->dev, 128,
> +						   4, 0);
>  
>  	if (!instance->sense_dma_pool) {
>  		dev_printk(KERN_DEBUG, &instance->pdev->dev, "failed to setup sense pool\n");
>  
> -		pci_pool_destroy(instance->frame_dma_pool);
> +		dma_pool_destroy(instance->frame_dma_pool);
>  		instance->frame_dma_pool = NULL;
>  
>  		return -ENOMEM;
> @@ -3952,10 +3954,10 @@ static int megasas_create_frame_pool(struct megasas_instance *instance)
>  
>  		cmd = instance->cmd_list[i];
>  
> -		cmd->frame = pci_pool_alloc(instance->frame_dma_pool,
> +		cmd->frame = dma_pool_alloc(instance->frame_dma_pool,
>  					    GFP_KERNEL, &cmd->frame_phys_addr);
>  
> -		cmd->sense = pci_pool_alloc(instance->sense_dma_pool,
> +		cmd->sense = dma_pool_alloc(instance->sense_dma_pool,
>  					    GFP_KERNEL, &cmd->sense_phys_addr);
>  
>  		/*
> @@ -3963,7 +3965,8 @@ static int megasas_create_frame_pool(struct megasas_instance *instance)
>  		 * whatever has been allocated
>  		 */
>  		if (!cmd->frame || !cmd->sense) {
> -			dev_printk(KERN_DEBUG, &instance->pdev->dev, "pci_pool_alloc failed\n");
> +			dev_printk(KERN_DEBUG, &instance->pdev->dev,
> +				   "dma_pool_alloc failed\n");
>  			megasas_teardown_frame_pool(instance);
>  			return -ENOMEM;
>  		}
> diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
> index 29650ba..a5529f7 100644
> --- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
> +++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
> @@ -313,22 +313,19 @@ megasas_free_cmds_fusion(struct megasas_instance *instance)
>  		cmd = fusion->cmd_list[i];
>  		if (cmd) {
>  			if (cmd->sg_frame)
> -				pci_pool_free(fusion->sg_dma_pool, cmd->sg_frame,
> -				      cmd->sg_frame_phys_addr);
> +				dma_pool_free(fusion->sg_dma_pool,
> +					      cmd->sg_frame,
> +					      cmd->sg_frame_phys_addr);
>  			if (cmd->sense)
> -				pci_pool_free(fusion->sense_dma_pool, cmd->sense,
> -				      cmd->sense_phys_addr);
> +				dma_pool_free(fusion->sense_dma_pool,
> +					      cmd->sense, cmd->sense_phys_addr);
>  		}
>  	}
>  
> -	if (fusion->sg_dma_pool) {
> -		pci_pool_destroy(fusion->sg_dma_pool);
> -		fusion->sg_dma_pool = NULL;
> -	}
> -	if (fusion->sense_dma_pool) {
> -		pci_pool_destroy(fusion->sense_dma_pool);
> -		fusion->sense_dma_pool = NULL;
> -	}
> +	dma_pool_destroy(fusion->sg_dma_pool);
> +	fusion->sg_dma_pool = NULL;
> +	dma_pool_destroy(fusion->sense_dma_pool);
> +	fusion->sense_dma_pool = NULL;
>  
>  
>  	/* Reply Frame, Desc*/
> @@ -343,14 +340,11 @@ megasas_free_cmds_fusion(struct megasas_instance *instance)
>  			fusion->request_alloc_sz, fusion->req_frames_desc,
>  			fusion->req_frames_desc_phys);
>  	if (fusion->io_request_frames)
> -		pci_pool_free(fusion->io_request_frames_pool,
> +		dma_pool_free(fusion->io_request_frames_pool,
>  			fusion->io_request_frames,
>  			fusion->io_request_frames_phys);
> -	if (fusion->io_request_frames_pool) {
> -		pci_pool_destroy(fusion->io_request_frames_pool);
> -		fusion->io_request_frames_pool = NULL;
> -	}
> -
> +	dma_pool_destroy(fusion->io_request_frames_pool);
> +	fusion->io_request_frames_pool = NULL;
>  
>  	/* cmd_list */
>  	for (i = 0; i < instance->max_mpt_cmds; i++)
> @@ -376,12 +370,12 @@ static int megasas_create_sg_sense_fusion(struct megasas_instance *instance)
>  
>  
>  	fusion->sg_dma_pool =
> -			pci_pool_create("mr_sg", instance->pdev,
> +			dma_pool_create("mr_sg", &instance->pdev->dev,
>  				instance->max_chain_frame_sz,
>  				MR_DEFAULT_NVME_PAGE_SIZE, 0);
>  	/* SCSI_SENSE_BUFFERSIZE  = 96 bytes */
>  	fusion->sense_dma_pool =
> -			pci_pool_create("mr_sense", instance->pdev,
> +			dma_pool_create("mr_sense", &instance->pdev->dev,
>  				SCSI_SENSE_BUFFERSIZE, 64, 0);
>  
>  	if (!fusion->sense_dma_pool || !fusion->sg_dma_pool) {
> @@ -395,10 +389,10 @@ static int megasas_create_sg_sense_fusion(struct megasas_instance *instance)
>  	 */
>  	for (i = 0; i < max_cmd; i++) {
>  		cmd = fusion->cmd_list[i];
> -		cmd->sg_frame = pci_pool_alloc(fusion->sg_dma_pool,
> +		cmd->sg_frame = dma_pool_alloc(fusion->sg_dma_pool,
>  					GFP_KERNEL, &cmd->sg_frame_phys_addr);
>  
> -		cmd->sense = pci_pool_alloc(fusion->sense_dma_pool,
> +		cmd->sense = dma_pool_alloc(fusion->sense_dma_pool,
>  					GFP_KERNEL, &cmd->sense_phys_addr);
>  		if (!cmd->sg_frame || !cmd->sense) {
>  			dev_err(&instance->pdev->dev,
> @@ -410,7 +404,7 @@ static int megasas_create_sg_sense_fusion(struct megasas_instance *instance)
>  	/* create sense buffer for the raid 1/10 fp */
>  	for (i = max_cmd; i < instance->max_mpt_cmds; i++) {
>  		cmd = fusion->cmd_list[i];
> -		cmd->sense = pci_pool_alloc(fusion->sense_dma_pool,
> +		cmd->sense = dma_pool_alloc(fusion->sense_dma_pool,
>  			GFP_KERNEL, &cmd->sense_phys_addr);
>  		if (!cmd->sense) {
>  			dev_err(&instance->pdev->dev,
> @@ -475,7 +469,7 @@ megasas_alloc_request_fusion(struct megasas_instance *instance)
>  	}
>  
>  	fusion->io_request_frames_pool =
> -			pci_pool_create("mr_ioreq", instance->pdev,
> +			dma_pool_create("mr_ioreq", &instance->pdev->dev,
>  				fusion->io_frames_alloc_sz, 16, 0);
>  
>  	if (!fusion->io_request_frames_pool) {
> @@ -485,7 +479,7 @@ megasas_alloc_request_fusion(struct megasas_instance *instance)
>  	}
>  
>  	fusion->io_request_frames =
> -			pci_pool_alloc(fusion->io_request_frames_pool,
> +			dma_pool_alloc(fusion->io_request_frames_pool,
>  				GFP_KERNEL, &fusion->io_request_frames_phys);
>  	if (!fusion->io_request_frames) {
>  		dev_err(&instance->pdev->dev,
> @@ -505,7 +499,7 @@ megasas_alloc_reply_fusion(struct megasas_instance *instance)
>  
>  	count = instance->msix_vectors > 0 ? instance->msix_vectors : 1;
>  	fusion->reply_frames_desc_pool =
> -			pci_pool_create("mr_reply", instance->pdev,
> +			dma_pool_create("mr_reply", &instance->pdev->dev,
>  				fusion->reply_alloc_sz * count, 16, 0);
>  
>  	if (!fusion->reply_frames_desc_pool) {
> @@ -515,7 +509,7 @@ megasas_alloc_reply_fusion(struct megasas_instance *instance)
>  	}
>  
>  	fusion->reply_frames_desc[0] =
> -		pci_pool_alloc(fusion->reply_frames_desc_pool,
> +		dma_pool_alloc(fusion->reply_frames_desc_pool,
>  			GFP_KERNEL, &fusion->reply_frames_desc_phys[0]);
>  	if (!fusion->reply_frames_desc[0]) {
>  		dev_err(&instance->pdev->dev,
> @@ -558,8 +552,10 @@ megasas_alloc_rdpq_fusion(struct megasas_instance *instance)
>  	memset(fusion->rdpq_virt, 0,
>  			sizeof(struct MPI2_IOC_INIT_RDPQ_ARRAY_ENTRY) * MAX_MSIX_QUEUES_FUSION);
>  	count = instance->msix_vectors > 0 ? instance->msix_vectors : 1;
> -	fusion->reply_frames_desc_pool = pci_pool_create("mr_rdpq",
> -							 instance->pdev, fusion->reply_alloc_sz, 16, 0);
> +	fusion->reply_frames_desc_pool = dma_pool_create("mr_rdpq",
> +							 &instance->pdev->dev,
> +							 fusion->reply_alloc_sz,
> +							 16, 0);
>  
>  	if (!fusion->reply_frames_desc_pool) {
>  		dev_err(&instance->pdev->dev,
> @@ -569,7 +565,7 @@ megasas_alloc_rdpq_fusion(struct megasas_instance *instance)
>  
>  	for (i = 0; i < count; i++) {
>  		fusion->reply_frames_desc[i] =
> -				pci_pool_alloc(fusion->reply_frames_desc_pool,
> +				dma_pool_alloc(fusion->reply_frames_desc_pool,
>  					GFP_KERNEL, &fusion->reply_frames_desc_phys[i]);
>  		if (!fusion->reply_frames_desc[i]) {
>  			dev_err(&instance->pdev->dev,
> @@ -597,13 +593,12 @@ megasas_free_rdpq_fusion(struct megasas_instance *instance) {
>  
>  	for (i = 0; i < MAX_MSIX_QUEUES_FUSION; i++) {
>  		if (fusion->reply_frames_desc[i])
> -			pci_pool_free(fusion->reply_frames_desc_pool,
> +			dma_pool_free(fusion->reply_frames_desc_pool,
>  				fusion->reply_frames_desc[i],
>  				fusion->reply_frames_desc_phys[i]);
>  	}
>  
> -	if (fusion->reply_frames_desc_pool)
> -		pci_pool_destroy(fusion->reply_frames_desc_pool);
> +	dma_pool_destroy(fusion->reply_frames_desc_pool);
>  
>  	if (fusion->rdpq_virt)
>  		pci_free_consistent(instance->pdev,
> @@ -619,12 +614,11 @@ megasas_free_reply_fusion(struct megasas_instance *instance) {
>  	fusion = instance->ctrl_context;
>  
>  	if (fusion->reply_frames_desc[0])
> -		pci_pool_free(fusion->reply_frames_desc_pool,
> +		dma_pool_free(fusion->reply_frames_desc_pool,
>  			fusion->reply_frames_desc[0],
>  			fusion->reply_frames_desc_phys[0]);
>  
> -	if (fusion->reply_frames_desc_pool)
> -		pci_pool_destroy(fusion->reply_frames_desc_pool);
> +	dma_pool_destroy(fusion->reply_frames_desc_pool);
>  
>  }
>  
> -- 
> 2.9.3
> 

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