Thread (10 messages) 10 messages, 4 authors, 2014-12-04

Re: [PATCH 1/3] video: fbdev: vt8623fb: suppress build warning

From: Prabhakar Lad <prabhakar.csengg@gmail.com>
Date: 2014-12-03 18:30:08
Also in: lkml

On Wed, Dec 3, 2014 at 11:49 AM, Tomi Valkeinen [off-list ref] wrote:
On 27/11/14 00:07, Lad, Prabhakar wrote:
quoted
this patch fixes following build warning:
drivers/video/fbdev/vt8623fb.c: In function ‘vt8623_pci_probe’:
drivers/video/fbdev/vt8623fb.c:734:23: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
  par->state.vgabase = (void __iomem *) vga_res.start;
                       ^
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
---
 drivers/video/fbdev/vt8623fb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/video/fbdev/vt8623fb.c b/drivers/video/fbdev/vt8623fb.c
index 5c7cbc6..ea7f056 100644
--- a/drivers/video/fbdev/vt8623fb.c
+++ b/drivers/video/fbdev/vt8623fb.c
@@ -731,7 +731,7 @@ static int vt8623_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)

      pcibios_bus_to_resource(dev->bus, &vga_res, &bus_reg);

-     par->state.vgabase = (void __iomem *) vga_res.start;
+     par->state.vgabase = (void __iomem *) (unsigned long) vga_res.start;
This does look quite ugly... Where does the warning come from in the
first place. Isn't vga_res.start (resource_size_t) the size of a pointer?
Yes looks ugly, I am not sure what you meant from 'where does this warning
come from' its in the commit message.

Thanks,
--Prabhakar Lad
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