[PATCH v3 4/4] FIRMWARE: bcm47xx_nvram: Use __ioread32_copy() instead of open-coding

From: Stephen Boyd
Date: Fri Oct 23 2015 - 16:02:24 EST


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

Cc: Hauke Mehrtens <hauke@xxxxxxxxxx>
Cc: RafaÅ MiÅecki <zajec5@xxxxxxxxx>
Cc: Paul Walmsley <paul@xxxxxxxxx>
Cc: linux-mips@xxxxxxxxxxxxxx
Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxxxxxx>
---
drivers/firmware/broadcom/bcm47xx_nvram.c | 11 +++--------
1 file 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;
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

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