The driver uses rather voodoo kind of castings and I/O accessors. Replace it with proper __iomem annotation and readl()/readq() calls. Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> Tested-by: Henning Schild <henning.schild@xxxxxxxxxxx> Reviewed-by: Tony Luck <tony.luck@xxxxxxxxx> --- drivers/edac/pnd2_edac.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/edac/pnd2_edac.c b/drivers/edac/pnd2_edac.c index c94ca1f790c4..7d1df120e24c 100644 --- a/drivers/edac/pnd2_edac.c +++ b/drivers/edac/pnd2_edac.c @@ -265,7 +265,7 @@ static u64 get_sideband_reg_base_addr(void) static int dnv_rd_reg(int port, int off, int op, void *data, size_t sz, char *name) { struct pci_dev *pdev; - char *base; + void __iomem *base; u64 addr; unsigned long size; @@ -297,8 +297,9 @@ static int dnv_rd_reg(int port, int off, int op, void *data, size_t sz, char *na return -ENODEV; if (sz == 8) - *(u32 *)(data + 4) = *(u32 *)(base + off + 4); - *(u32 *)data = *(u32 *)(base + off); + *(u64 *)data = readq(base + off); + else + *(u32 *)data = readl(base + off); iounmap(base); } -- 2.35.1