linux-kernel - [PATCH 1/5] efi: move noefi early param code out of x86 arch code

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Message-Id: <1407823822-23829-1-git-send-email-dyoung@redhat.com>
Date:	Tue, 12 Aug 2014 14:10:18 +0800
From:	Dave Young <dyoung@...hat.com>
To:	Matt Fleming <matt.fleming@...el.com>
Cc:	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>, hpa@...or.com,
	Alessandro Zummo <a.zummo@...ertech.it>,
	Leif Lindholm <leif.lindholm@...aro.org>,
	Ard Biesheuvel <ard.biesheuvel@...aro.org>,
	Mark Salter <msalter@...hat.com>,
	Randy Dunlap <rdunlap@...radead.org>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-efi@...r.kernel.org, rtc-linux@...glegroups.com
Subject: [PATCH 1/5] efi: move noefi early param code out of x86 arch code

noefi param can be used for arches other than X86 later, thus move it out of
x86 platform code.

Signed-off-by: Dave Young <dyoung@...hat.com>
---
 arch/x86/platform/efi/efi.c | 10 +---------
 drivers/firmware/efi/efi.c  | 13 +++++++++++++
 include/linux/efi.h         |  1 +
 3 files changed, 15 insertions(+), 9 deletions(-)

diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index 850da94..dd7aaa1 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -70,14 +70,6 @@ static efi_config_table_type_t arch_tables[] __initdata = {
 
 u64 efi_setup;		/* efi setup_data physical address */
 
-static bool disable_runtime __initdata = false;
-static int __init setup_noefi(char *arg)
-{
-	disable_runtime = true;
-	return 0;
-}
-early_param("noefi", setup_noefi);
-
 int add_efi_memmap;
 EXPORT_SYMBOL(add_efi_memmap);
 
@@ -492,7 +484,7 @@ void __init efi_init(void)
 	if (!efi_runtime_supported())
 		pr_info("No EFI runtime due to 32/64-bit mismatch with kernel\n");
 	else {
-		if (disable_runtime || efi_runtime_init())
+		if (efi_runtime_disabled() || efi_runtime_init())
 			return;
 	}
 	if (efi_memmap_init())
diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
index 64ecbb5..c8f01a7 100644
--- a/drivers/firmware/efi/efi.c
+++ b/drivers/firmware/efi/efi.c
@@ -41,6 +41,19 @@ struct efi __read_mostly efi = {
 };
 EXPORT_SYMBOL(efi);
 
+static bool disable_runtime;
+static int __init setup_noefi(char *arg)
+{
+	disable_runtime = true;
+	return 0;
+}
+early_param("noefi", setup_noefi);
+
+bool efi_runtime_disabled(void)
+{
+	return disable_runtime;
+}
+
 static struct kobject *efi_kobj;
 static struct kobject *efivars_kobj;
 
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 45cb4ff..06d7c03 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -1227,4 +1227,5 @@ efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
 				  unsigned long *load_addr,
 				  unsigned long *load_size);
 
+bool efi_runtime_disabled(void);
 #endif /* _LINUX_EFI_H */
-- 
1.8.3.1

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