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authorIvan Khoronzhuk <ivan.khoronzhuk@linaro.org>2015-02-18 14:33:21 +0300
committerMatt Fleming <matt.fleming@intel.com>2015-03-26 17:00:15 +0300
commit552e19d8764aeea3ecdf6cf29e22d6b99a505091 (patch)
tree6174dd9aeae063a12001455cbb6c6772bc69fbc2 /drivers/firmware/dmi_scan.c
parent95be58df74a5b21e5a78e45fddb2fd59112524c5 (diff)
downloadlinux-552e19d8764aeea3ecdf6cf29e22d6b99a505091.tar.xz
firmware: dmi_scan: Use direct access to static vars
There is no reason to pass static vars to function that can use only them. The dmi_table() can use only dmi_len and dmi_num static vars, so use them directly. In this case we can freely change their type in one place and slightly decrease redundancy. Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org> Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Diffstat (limited to 'drivers/firmware/dmi_scan.c')
-rw-r--r--drivers/firmware/dmi_scan.c17
1 files changed, 9 insertions, 8 deletions
diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c
index c8f9e9d3bf91..c9cb725520c5 100644
--- a/drivers/firmware/dmi_scan.c
+++ b/drivers/firmware/dmi_scan.c
@@ -18,6 +18,8 @@
static const char dmi_empty_string[] = " ";
static u32 dmi_ver __initdata;
+static u32 dmi_len;
+static u16 dmi_num;
/*
* Catch too early calls to dmi_check_system():
*/
@@ -78,7 +80,7 @@ static const char * __init dmi_string(const struct dmi_header *dm, u8 s)
* We have to be cautious here. We have seen BIOSes with DMI pointers
* pointing to completely the wrong place for example
*/
-static void dmi_table(u8 *buf, u32 len, int num,
+static void dmi_table(u8 *buf,
void (*decode)(const struct dmi_header *, void *),
void *private_data)
{
@@ -89,7 +91,8 @@ static void dmi_table(u8 *buf, u32 len, int num,
* Stop when we see all the items the table claimed to have
* OR we run off the end of the table (also happens)
*/
- while ((i < num) && (data - buf + sizeof(struct dmi_header)) <= len) {
+ while ((i < dmi_num) && (data - buf + sizeof(struct dmi_header))
+ <= dmi_len) {
const struct dmi_header *dm = (const struct dmi_header *)data;
/*
@@ -98,9 +101,9 @@ static void dmi_table(u8 *buf, u32 len, int num,
* table in dmi_decode or dmi_string
*/
data += dm->length;
- while ((data - buf < len - 1) && (data[0] || data[1]))
+ while ((data - buf < dmi_len - 1) && (data[0] || data[1]))
data++;
- if (data - buf < len - 1)
+ if (data - buf < dmi_len - 1)
decode(dm, private_data);
/*
@@ -115,8 +118,6 @@ static void dmi_table(u8 *buf, u32 len, int num,
}
static phys_addr_t dmi_base;
-static u32 dmi_len;
-static u16 dmi_num;
static int __init dmi_walk_early(void (*decode)(const struct dmi_header *,
void *))
@@ -127,7 +128,7 @@ static int __init dmi_walk_early(void (*decode)(const struct dmi_header *,
if (buf == NULL)
return -1;
- dmi_table(buf, dmi_len, dmi_num, decode, NULL);
+ dmi_table(buf, decode, NULL);
add_device_randomness(buf, dmi_len);
@@ -905,7 +906,7 @@ int dmi_walk(void (*decode)(const struct dmi_header *, void *),
if (buf == NULL)
return -1;
- dmi_table(buf, dmi_len, dmi_num, decode, private_data);
+ dmi_table(buf, decode, private_data);
dmi_unmap(buf);
return 0;