linux-kernel - [PATCH V4 22/26] video: fbdev: intelfb: deprecate pci_get_bus_and

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Message-Id: <1513661883-28662-23-git-send-email-okaya@codeaurora.org>
Date:   Tue, 19 Dec 2017 00:37:58 -0500
From:   Sinan Kaya <okaya@...eaurora.org>
To:     linux-pci@...r.kernel.org, timur@...eaurora.org
Cc:     linux-arm-msm@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Sinan Kaya <okaya@...eaurora.org>,
        Maik Broemme <mbroemme@...mpq.org>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        linux-fbdev@...r.kernel.org (open list:INTEL FRAMEBUFFER DRIVER
        (excluding 810 and 815)),
        dri-devel@...ts.freedesktop.org (open list:FRAMEBUFFER LAYER),
        linux-kernel@...r.kernel.org (open list)
Subject: [PATCH V4 22/26] video: fbdev: intelfb: deprecate pci_get_bus_and_slot()

pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().

Find the domain number from pdev.

Signed-off-by: Sinan Kaya <okaya@...eaurora.org>
---
 drivers/video/fbdev/intelfb/intelfbhw.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/video/fbdev/intelfb/intelfbhw.c b/drivers/video/fbdev/intelfb/intelfbhw.c
index 83fec57..57aff74 100644
--- a/drivers/video/fbdev/intelfb/intelfbhw.c
+++ b/drivers/video/fbdev/intelfb/intelfbhw.c
@@ -181,7 +181,9 @@ int intelfbhw_get_memory(struct pci_dev *pdev, int *aperture_size,
 		return 1;
 
 	/* Find the bridge device.  It is always 0:0.0 */
-	if (!(bridge_dev = pci_get_bus_and_slot(0, PCI_DEVFN(0, 0)))) {
+	bridge_dev = pci_get_domain_bus_and_slot(pci_domain_nr(pdev->bus), 0,
+						 PCI_DEVFN(0, 0));
+	if (!bridge_dev) {
 		ERR_MSG("cannot find bridge device\n");
 		return 1;
 	}
-- 
1.9.1