linux-kernel - [PATCH net-next v2] gve: Simplify code and axe the use of a deprecated API

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Date:   Thu,  1 Jul 2021 22:41:19 +0200
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     csully@...gle.com, sagis@...gle.com, jonolson@...gle.com,
        davem@...emloft.net, kuba@...nel.org, awogbemila@...gle.com,
        willemb@...gle.com, yangchun@...gle.com, bcf@...gle.com,
        kuozhao@...gle.com
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>
Subject: [PATCH net-next v2] gve: Simplify code and axe the use of a deprecated API

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

Replace 'pci_set_dma_mask/pci_set_consistent_dma_mask' by an equivalent
and less verbose 'dma_set_mask_and_coherent()' call.

Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
If needed, see post from Christoph Hellwig on the kernel-janitors ML:
   https://marc.info/?l=kernel-janitors&m=158745678307186&w=4

v2: Unchanged
    This patch was previously 3/3 of a serie
---
 drivers/net/ethernet/google/gve/gve_main.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/google/gve/gve_main.c b/drivers/net/ethernet/google/gve/gve_main.c
index c03984b26db4..099a2bc5ae67 100644
--- a/drivers/net/ethernet/google/gve/gve_main.c
+++ b/drivers/net/ethernet/google/gve/gve_main.c
@@ -1477,19 +1477,12 @@ static int gve_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	pci_set_master(pdev);
 
-	err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
+	err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
 	if (err) {
 		dev_err(&pdev->dev, "Failed to set dma mask: err=%d\n", err);
 		goto abort_with_pci_region;
 	}
 
-	err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
-	if (err) {
-		dev_err(&pdev->dev,
-			"Failed to set consistent dma mask: err=%d\n", err);
-		goto abort_with_pci_region;
-	}
-
 	reg_bar = pci_iomap(pdev, GVE_REGISTER_BAR, 0);
 	if (!reg_bar) {
 		dev_err(&pdev->dev, "Failed to map pci bar!\n");
-- 
2.30.2