smbios: Allow compilation on 64bit systems

The SMBIOS generation code passes pointers as u32. That causes the compiler
to warn on casts to pointers. This patch moves all address pointers to
uintptr_t instead.

Technically u32 would be enough for the current SMBIOS2 style tables, but
we may want to extend the code to SMBIOS3 in the future which is 64bit
address capable.

Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

arch/x86/lib/tables.c

@@ -12,6 +12,11 @@
 #include <asm/acpi_table.h>
 #include <asm/coreboot_tables.h>
 
+static u32 write_smbios_table_wrapper(u32 addr)
+{
+	return write_smbios_table(addr);
+}
+
 /**
  * Function prototype to write a specific configuration table
  *
@@ -34,7 +39,7 @@ static table_write table_write_funcs[] = {
 	write_acpi_tables,
 #endif
 #ifdef CONFIG_GENERATE_SMBIOS_TABLE
-	write_smbios_table,
+	write_smbios_table_wrapper,
 #endif
 };
 

include/smbios.h

@@ -221,7 +221,7 @@ static inline void fill_smbios_header(void *table, int type,
  * @handle:	the structure's handle, a unique 16-bit number
  * @return:	size of the structure
  */
-typedef int (*smbios_write_type)(u32 *addr, int handle);
+typedef int (*smbios_write_type)(uintptr_t *addr, int handle);
 
 /**
  * write_smbios_table() - Write SMBIOS table
@@ -231,6 +231,6 @@ typedef int (*smbios_write_type)(u32 *addr, int handle);
  * @addr:	start address to write SMBIOS table
  * @return:	end address of SMBIOS table
  */
-u32 write_smbios_table(u32 addr);
+uintptr_t write_smbios_table(uintptr_t addr);
 
 #endif /* _SMBIOS_H_ */

lib/smbios.c

@@ -69,7 +69,7 @@ static int smbios_string_table_len(char *start)
 	return len + 1;
 }
 
-static int smbios_write_type0(u32 *current, int handle)
+static int smbios_write_type0(uintptr_t *current, int handle)
 {
 	struct smbios_type0 *t = (struct smbios_type0 *)*current;
 	int len = sizeof(struct smbios_type0);
@@ -98,7 +98,7 @@ static int smbios_write_type0(u32 *current, int handle)
 	return len;
 }
 
-static int smbios_write_type1(u32 *current, int handle)
+static int smbios_write_type1(uintptr_t *current, int handle)
 {
 	struct smbios_type1 *t = (struct smbios_type1 *)*current;
 	int len = sizeof(struct smbios_type1);
@@ -114,7 +114,7 @@ static int smbios_write_type1(u32 *current, int handle)
 	return len;
 }
 
-static int smbios_write_type2(u32 *current, int handle)
+static int smbios_write_type2(uintptr_t *current, int handle)
 {
 	struct smbios_type2 *t = (struct smbios_type2 *)*current;
 	int len = sizeof(struct smbios_type2);
@@ -132,7 +132,7 @@ static int smbios_write_type2(u32 *current, int handle)
 	return len;
 }
 
-static int smbios_write_type3(u32 *current, int handle)
+static int smbios_write_type3(uintptr_t *current, int handle)
 {
 	struct smbios_type3 *t = (struct smbios_type3 *)*current;
 	int len = sizeof(struct smbios_type3);
@@ -152,7 +152,7 @@ static int smbios_write_type3(u32 *current, int handle)
 	return len;
 }
 
-static int smbios_write_type4(u32 *current, int handle)
+static int smbios_write_type4(uintptr_t *current, int handle)
 {
 	struct smbios_type4 *t = (struct smbios_type4 *)*current;
 	int len = sizeof(struct smbios_type4);
@@ -185,7 +185,7 @@ static int smbios_write_type4(u32 *current, int handle)
 	return len;
 }
 
-static int smbios_write_type32(u32 *current, int handle)
+static int smbios_write_type32(uintptr_t *current, int handle)
 {
 	struct smbios_type32 *t = (struct smbios_type32 *)*current;
 	int len = sizeof(struct smbios_type32);
@@ -198,7 +198,7 @@ static int smbios_write_type32(u32 *current, int handle)
 	return len;
 }
 
-static int smbios_write_type127(u32 *current, int handle)
+static int smbios_write_type127(uintptr_t *current, int handle)
 {
 	struct smbios_type127 *t = (struct smbios_type127 *)*current;
 	int len = sizeof(struct smbios_type127);
@@ -221,7 +221,7 @@ static smbios_write_type smbios_write_funcs[] = {
 	smbios_write_type127
 };
 
-u32 write_smbios_table(u32 addr)
+uintptr_t write_smbios_table(uintptr_t addr)
 {
 	struct smbios_entry *se;
 	u32 tables;