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Subject[tip:x86/eficross] x86, efi: Cleanup config table walking
Commit-ID:  a6a46f415dca828a04a435ca1f67de0bc5b9ae30
Gitweb: http://git.kernel.org/tip/a6a46f415dca828a04a435ca1f67de0bc5b9ae30
Author: Olof Johansson <olof@lixom.net>
AuthorDate: Sun, 12 Feb 2012 13:24:27 -0800
Committer: H. Peter Anvin <hpa@zytor.com>
CommitDate: Thu, 23 Feb 2012 18:54:33 -0800

x86, efi: Cleanup config table walking

Trivial cleanup, move guid and table pointers to local copies to
make the code cleaner.

Signed-off-by: Olof Johansson <olof@lixom.net>
Link: http://lkml.kernel.org/r/1329081869-20779-4-git-send-email-olof@lixom.net
Acked-by: Matt Fleming <matt.fleming@intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
---
arch/x86/platform/efi/efi.c | 61 +++++++++++++++++++-----------------------
1 files changed, 28 insertions(+), 33 deletions(-)
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index 511fb15..03259d1 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -455,53 +455,48 @@ static void __init efi_systab_init(void *phys)
static void __init efi_config_init(u64 tables, int nr_tables)
{
efi_config_table_t *config_tables;
- int i;
+ int i, sz = sizeof(efi_config_table_t);

/*
* Let's see what config tables the firmware passed to us.
*/
- config_tables = early_ioremap(
- efi.systab->tables,
- efi.systab->nr_tables * sizeof(efi_config_table_t));
+ config_tables = early_ioremap(efi.systab->tables,
+ efi.systab->nr_tables * sz);
if (config_tables == NULL)
pr_err("Could not map Configuration table!\n");

pr_info("");
for (i = 0; i < efi.systab->nr_tables; i++) {
- if (!efi_guidcmp(config_tables[i].guid, MPS_TABLE_GUID)) {
- efi.mps = config_tables[i].table;
- pr_cont(" MPS=0x%lx ", config_tables[i].table);
- } else if (!efi_guidcmp(config_tables[i].guid,
- ACPI_20_TABLE_GUID)) {
- efi.acpi20 = config_tables[i].table;
- pr_cont(" ACPI 2.0=0x%lx ", config_tables[i].table);
- } else if (!efi_guidcmp(config_tables[i].guid,
- ACPI_TABLE_GUID)) {
- efi.acpi = config_tables[i].table;
- pr_cont(" ACPI=0x%lx ", config_tables[i].table);
- } else if (!efi_guidcmp(config_tables[i].guid,
- SMBIOS_TABLE_GUID)) {
- efi.smbios = config_tables[i].table;
- pr_cont(" SMBIOS=0x%lx ", config_tables[i].table);
+ efi_guid_t guid = config_tables[i].guid;
+ unsigned long table = config_tables[i].table;
+
+ if (!efi_guidcmp(guid, MPS_TABLE_GUID)) {
+ efi.mps = table;
+ pr_cont(" MPS=0x%lx ", table);
+ } else if (!efi_guidcmp(guid, ACPI_20_TABLE_GUID)) {
+ efi.acpi20 = table;
+ pr_cont(" ACPI 2.0=0x%lx ", table);
+ } else if (!efi_guidcmp(guid, ACPI_TABLE_GUID)) {
+ efi.acpi = table;
+ pr_cont(" ACPI=0x%lx ", table);
+ } else if (!efi_guidcmp(guid, SMBIOS_TABLE_GUID)) {
+ efi.smbios = table;
+ pr_cont(" SMBIOS=0x%lx ", table);
#ifdef CONFIG_X86_UV
- } else if (!efi_guidcmp(config_tables[i].guid,
- UV_SYSTEM_TABLE_GUID)) {
- efi.uv_systab = config_tables[i].table;
- pr_cont(" UVsystab=0x%lx ", config_tables[i].table);
+ } else if (!efi_guidcmp(guid, UV_SYSTEM_TABLE_GUID)) {
+ efi.uv_systab = table;
+ pr_cont(" UVsystab=0x%lx ", table);
#endif
- } else if (!efi_guidcmp(config_tables[i].guid,
- HCDP_TABLE_GUID)) {
- efi.hcdp = config_tables[i].table;
- pr_cont(" HCDP=0x%lx ", config_tables[i].table);
- } else if (!efi_guidcmp(config_tables[i].guid,
- UGA_IO_PROTOCOL_GUID)) {
- efi.uga = config_tables[i].table;
- pr_cont(" UGA=0x%lx ", config_tables[i].table);
+ } else if (!efi_guidcmp(guid, HCDP_TABLE_GUID)) {
+ efi.hcdp = table;
+ pr_cont(" HCDP=0x%lx ", table);
+ } else if (!efi_guidcmp(guid, UGA_IO_PROTOCOL_GUID)) {
+ efi.uga = table;
+ pr_cont(" UGA=0x%lx ", table);
}
}
pr_cont("\n");
- early_iounmap(config_tables,
- efi.systab->nr_tables * sizeof(efi_config_table_t));
+ early_iounmap(config_tables, efi.systab->nr_tables * sz);
}

static void __init efi_runtime_init(void)

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