korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-09-21 20:22:13 +08:00
Code Issues Packages Projects Releases Wiki Activity

firmware: bcm47xx_nvram: inline code checking NVRAM size

Browse Source 
Separated function was not improving code quality much (or at all).
Moreover it expected possible flash end address as argument and it was
returning NVRAM size.

The new code always operates on offsets which means less logic and less
calculations.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This commit is contained in:
Rafał Miłecki 2021-03-08 10:03:20 +01:00 committed by Thomas Bogendoerfer
parent 98b68324f6
commit f52da4ccfe
1 changed files with 7 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
drivers/firmware/broadcom/bcm47xx_nvram.c
View File

@ -42,18 +42,6 @@ static bool bcm47xx_nvram_is_valid(void __iomem *nvram)
return ((struct nvram_header *)nvram)->magic == NVRAM_MAGIC;
}
static u32 find_nvram_size(void __iomem *end)
{
int i;
for (i = 0; i < ARRAY_SIZE(nvram_sizes); i++) {
if (bcm47xx_nvram_is_valid(end - nvram_sizes[i]))
return nvram_sizes[i];
}
return 0;
}
/**
* bcm47xx_nvram_copy - copy NVRAM to internal buffer
*/
@ -85,7 +73,7 @@ static int bcm47xx_nvram_find_and_copy(void __iomem *flash_start, size_t res_siz
{
size_t flash_size;
size_t offset;
u32 size;
int i;
if (nvram_len) {
pr_warn("nvram already initialized\n");
@ -93,12 +81,13 @@ static int bcm47xx_nvram_find_and_copy(void __iomem *flash_start, size_t res_siz
}
/* TODO: when nvram is on nand flash check for bad blocks first. */
/* Try every possible flash size and check for NVRAM at its end */
for (flash_size = FLASH_MIN; flash_size <= res_size; flash_size <<= 1) {
/* Windowed flash access */
size = find_nvram_size(flash_start + flash_size);
if (size) {
offset = flash_size - size;
goto found;
for (i = 0; i < ARRAY_SIZE(nvram_sizes); i++) {
offset = flash_size - nvram_sizes[i];
if (bcm47xx_nvram_is_valid(flash_start + offset))
goto found;
}
}