drivers/firmware/broadcom/bcm47xx_nvram.c: use __ioread32_copy() instead of open-coding

Now that we have a generic library function for this, replace the
open-coded instance.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Cc: <zajec5@gmail.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 3 insertions, 8 deletions

diff --git a/drivers/firmware/broadcom/bcm47xx_nvram.c b/drivers/firmware/broadcom/bcm47xx_nvram.c
index e41594510b97..0c2f0a61b0ea 100644
--- a/drivers/firmware/broadcom/bcm47xx_nvram.c
+++ b/drivers/firmware/broadcom/bcm47xx_nvram.c
@@ -56,9 +56,7 @@ static u32 find_nvram_size(void __iomem *end)
 static int nvram_find_and_copy(void __iomem *iobase, u32 lim)
 {
         struct nvram_header __iomem *header;
-        int i;
         u32 off;
-        u32 *src, *dst;
         u32 size;
 
         if (nvram_len) {
@@ -95,10 +93,7 @@ static int nvram_find_and_copy(void __iomem *iobase, u32 lim)
         return -ENXIO;
 
 found:
-        src = (u32 *)header;
-        dst = (u32 *)nvram_buf;
-        for (i = 0; i < sizeof(struct nvram_header); i += 4)
-                *dst++ = __raw_readl(src++);
+        __ioread32_copy(nvram_buf, header, sizeof(*header) / 4);
         header = (struct nvram_header *)nvram_buf;
         nvram_len = header->len;
         if (nvram_len > size) {
@@ -111,8 +106,8 @@ found:
                 nvram_len = NVRAM_SPACE - 1;
         }
         /* proceed reading data after header */
-        for (; i < nvram_len; i += 4)
-                *dst++ = readl(src++);
+        __ioread32_copy(nvram_buf + sizeof(*header), header + 1,
+                        DIV_ROUND_UP(nvram_len, 4));
         nvram_buf[NVRAM_SPACE - 1] = '\0';
 
         return 0;