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generic: routerboot sysfs: move tag_show_u32()

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This routine will be shared between hard and soft config drivers.

Tested-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Tested-by: Roger Pueyo Centelles <roger.pueyo@guifi.net>
Signed-off-by: Thibaut VARÈNE <hacks@slashdirt.org>
This commit is contained in:
Thibaut VARÈNE
2020-05-15 18:00:08 +02:00
committed by Koen Vandeputte
parent f36e710e2d
commit 89226b8666
3 changed files with 23 additions and 22 deletions
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19
target/linux/generic/files/drivers/platform/mikrotik/routerboot.c
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@@ -191,6 +191,25 @@ ssize_t routerboot_tag_show_string(const u8 *pld, u16 pld_len, char *buf)
return scnprintf(buf, pld_len+1, "%s\n", pld);
}
ssize_t routerboot_tag_show_u32s(const u8 *pld, u16 pld_len, char *buf)
{
char *out = buf;
u32 data; // cpu-endian
/* Caller ensures pld_len > 0 */
if (pld_len % sizeof(data))
return -EINVAL;
data = *(u32 *)pld;
do {
out += sprintf(out, "0x%08x\n", data);
data++;
} while ((pld_len -= sizeof(data)));
return out - buf;
}
module_init(routerboot_init);
module_exit(routerboot_exit);