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efi/ia64: Use local variable for EFI system table address

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The IA64 code never refers to the EFI system table except from
inside the scope of efi_init(). So let's use a local variable
instead of efi.systab, which will be going away soon.

Tested-by: Tony Luck <tony.luck@intel.com> # arch/ia64
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
This commit is contained in:
Ard Biesheuvel 2020-01-20 15:48:07 +01:00
parent c0019f5768
commit beaf1c745b
1 changed files with 6 additions and 5 deletions
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11
arch/ia64/kernel/efi.c
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@ -484,6 +484,7 @@ efi_map_pal_code (void)
void __init
efi_init (void)
{
const efi_system_table_t *efi_systab;
void *efi_map_start, *efi_map_end;
u64 efi_desc_size;
char *cp;
@ -516,17 +517,17 @@ efi_init (void)
printk(KERN_INFO "Ignoring memory above %lluMB\n",
max_addr >> 20);
efi.systab = __va(ia64_boot_param->efi_systab);
efi_systab = __va(ia64_boot_param->efi_systab);
/*
* Verify the EFI Table
*/
if (efi.systab == NULL)
if (efi_systab == NULL)
panic("Whoa! Can't find EFI system table.\n");
if (efi_systab_check_header(&efi.systab->hdr, 1))
if (efi_systab_check_header(&efi_systab->hdr, 1))
panic("Whoa! EFI system table signature incorrect\n");
efi_systab_report_header(&efi.systab->hdr, efi.systab->fw_vendor);
efi_systab_report_header(&efi_systab->hdr, efi_systab->fw_vendor);
palo_phys = EFI_INVALID_TABLE_ADDR;
@ -536,7 +537,7 @@ efi_init (void)
if (palo_phys != EFI_INVALID_TABLE_ADDR)
handle_palo(palo_phys);
runtime = __va(efi.systab->runtime);
runtime = __va(efi_systab->runtime);
efi.get_time = phys_get_time;
efi.set_time = phys_set_time;
efi.get_wakeup_time = phys_get_wakeup_time;