smbios: Drop the eos parameter
We can store this in the context and avoid passing it to each function.
This makes it easier to follow and will also allow keeping track of the
end of the string table (in future patches).
Add an 'eos' field to the context and create a function to set it up.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/lib/smbios.c b/lib/smbios.c
index 4d2cb0f..43628d6 100644
--- a/lib/smbios.c
+++ b/lib/smbios.c
@@ -22,10 +22,13 @@
*
* @node: node containing the information to write (ofnode_null() if none)
* @dev: sysinfo device to use (NULL if none)
+ * @eos: end-of-string pointer for the table being processed. This is set
+ * up when we start processing a table
*/
struct smbios_ctx {
ofnode node;
struct udevice *dev;
+ char *eos;
};
/**
@@ -57,14 +60,15 @@
* This adds a string to the string area which is appended directly after
* the formatted portion of an SMBIOS structure.
*
- * @start: string area start address
+ * @ctx: SMBIOS context
* @str: string to add
* @return: string number in the string area (1 or more)
*/
-static int smbios_add_string(char *start, const char *str)
+static int smbios_add_string(struct smbios_ctx *ctx, const char *str)
{
int i = 1;
- char *p = start;
+ char *p = ctx->eos;
+
if (!*str)
str = "Unknown";
@@ -89,26 +93,28 @@
/**
* smbios_add_prop() - Add a property from the device tree
*
- * @start: string area start address
* @ctx: context for writing the tables
* @prop: property to write
* @return 0 if not found, else SMBIOS string number (1 or more)
*/
-static int smbios_add_prop(char *start, struct smbios_ctx *ctx,
- const char *prop)
+static int smbios_add_prop(struct smbios_ctx *ctx, const char *prop)
{
-
if (IS_ENABLED(CONFIG_OF_CONTROL)) {
const char *str;
str = ofnode_read_string(ctx->node, prop);
if (str)
- return smbios_add_string(start, str);
+ return smbios_add_string(ctx, str);
}
return 0;
}
+static void smbios_set_eos(struct smbios_ctx *ctx, char *eos)
+{
+ ctx->eos = eos;
+}
+
/**
* smbios_string_table_len() - compute the string area size
*
@@ -140,9 +146,10 @@
t = map_sysmem(*current, len);
memset(t, 0, sizeof(struct smbios_type0));
fill_smbios_header(t, SMBIOS_BIOS_INFORMATION, len, handle);
- t->vendor = smbios_add_string(t->eos, "U-Boot");
- t->bios_ver = smbios_add_string(t->eos, PLAIN_VERSION);
- t->bios_release_date = smbios_add_string(t->eos, U_BOOT_DMI_DATE);
+ smbios_set_eos(ctx, t->eos);
+ t->vendor = smbios_add_string(ctx, "U-Boot");
+ t->bios_ver = smbios_add_string(ctx, PLAIN_VERSION);
+ t->bios_release_date = smbios_add_string(ctx, U_BOOT_DMI_DATE);
#ifdef CONFIG_ROM_SIZE
t->bios_rom_size = (CONFIG_ROM_SIZE / 65536) - 1;
#endif
@@ -180,17 +187,18 @@
t = map_sysmem(*current, len);
memset(t, 0, sizeof(struct smbios_type1));
fill_smbios_header(t, SMBIOS_SYSTEM_INFORMATION, len, handle);
- t->manufacturer = smbios_add_prop(t->eos, ctx, "manufacturer");
- t->product_name = smbios_add_prop(t->eos, ctx, "product");
- t->version = smbios_add_prop(t->eos, ctx, "version");
+ smbios_set_eos(ctx, t->eos);
+ t->manufacturer = smbios_add_prop(ctx, "manufacturer");
+ t->product_name = smbios_add_prop(ctx, "product");
+ t->version = smbios_add_prop(ctx, "version");
if (serial_str) {
- t->serial_number = smbios_add_string(t->eos, serial_str);
+ t->serial_number = smbios_add_string(ctx, serial_str);
strncpy((char *)t->uuid, serial_str, sizeof(t->uuid));
} else {
- t->serial_number = smbios_add_prop(t->eos, ctx, "serial");
+ t->serial_number = smbios_add_prop(ctx, "serial");
}
- t->sku_number = smbios_add_prop(t->eos, ctx, "sku");
- t->family = smbios_add_prop(t->eos, ctx, "family");
+ t->sku_number = smbios_add_prop(ctx, "sku");
+ t->family = smbios_add_prop(ctx, "family");
len = t->length + smbios_string_table_len(t->eos);
*current += len;
@@ -208,9 +216,10 @@
t = map_sysmem(*current, len);
memset(t, 0, sizeof(struct smbios_type2));
fill_smbios_header(t, SMBIOS_BOARD_INFORMATION, len, handle);
- t->manufacturer = smbios_add_prop(t->eos, ctx, "manufacturer");
- t->product_name = smbios_add_prop(t->eos, ctx, "product");
- t->asset_tag_number = smbios_add_prop(t->eos, ctx, "asset-tag");
+ smbios_set_eos(ctx, t->eos);
+ t->manufacturer = smbios_add_prop(ctx, "manufacturer");
+ t->product_name = smbios_add_prop(ctx, "product");
+ t->asset_tag_number = smbios_add_prop(ctx, "asset-tag");
t->feature_flags = SMBIOS_BOARD_FEATURE_HOSTING;
t->board_type = SMBIOS_BOARD_MOTHERBOARD;
@@ -230,7 +239,8 @@
t = map_sysmem(*current, len);
memset(t, 0, sizeof(struct smbios_type3));
fill_smbios_header(t, SMBIOS_SYSTEM_ENCLOSURE, len, handle);
- t->manufacturer = smbios_add_prop(t->eos, ctx, "manufacturer");
+ smbios_set_eos(ctx, t->eos);
+ t->manufacturer = smbios_add_prop(ctx, "manufacturer");
t->chassis_type = SMBIOS_ENCLOSURE_DESKTOP;
t->bootup_state = SMBIOS_STATE_SAFE;
t->power_supply_state = SMBIOS_STATE_SAFE;
@@ -273,8 +283,8 @@
#endif
t->processor_family = processor_family;
- t->processor_manufacturer = smbios_add_string(t->eos, vendor);
- t->processor_version = smbios_add_string(t->eos, name);
+ t->processor_manufacturer = smbios_add_string(ctx, vendor);
+ t->processor_version = smbios_add_string(ctx, name);
}
static int smbios_write_type4(ulong *current, int handle,
@@ -286,6 +296,7 @@
t = map_sysmem(*current, len);
memset(t, 0, sizeof(struct smbios_type4));
fill_smbios_header(t, SMBIOS_PROCESSOR_INFORMATION, len, handle);
+ smbios_set_eos(ctx, t->eos);
t->processor_type = SMBIOS_PROCESSOR_TYPE_CENTRAL;
smbios_write_type4_dm(t, ctx);
t->status = SMBIOS_PROCESSOR_STATUS_ENABLED;
@@ -311,6 +322,7 @@
t = map_sysmem(*current, len);
memset(t, 0, sizeof(struct smbios_type32));
fill_smbios_header(t, SMBIOS_SYSTEM_BOOT_INFORMATION, len, handle);
+ smbios_set_eos(ctx, t->eos);
*current += len;
unmap_sysmem(t);