lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

mlx4_{core, ib, en}: Fix driver when sizeof (phys_addr_t) > sizeof (long)

Browse Source 
Some systems have PCI addresses that don't fit in unsigned long (eg some
32-bit PowerPC 440 systems have 36-bit bus addresses).  Fix up mlx4 drivers
by using phys_addr_t where appropriate, so we don't truncate any PCI
resource addresses before ioremapping them.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Roland Dreier
2011-01-12 09:50:36 -08:00
parent 4162cf6497
commit 4979d18fe1
4 changed files with 8 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/infiniband/hw/mlx4/main.c
View File

@@ -1005,7 +1005,8 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
if (mlx4_uar_alloc(dev, &ibdev->priv_uar))
goto err_pd;
ibdev->uar_map = ioremap(ibdev->priv_uar.pfn << PAGE_SHIFT, PAGE_SIZE);
ibdev->uar_map = ioremap((phys_addr_t) ibdev->priv_uar.pfn << PAGE_SHIFT,
PAGE_SIZE);
if (!ibdev->uar_map)
goto err_uar;
MLX4_INIT_DOORBELL_LOCK(&ibdev->uar_lock);