---

yaml
---
r: 87392
b: refs/heads/master
c: 9a9e0d6
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: ce636452343af0522d2666157dab9c2096f4f996
+refs/heads/master: 9a9e0d685553af76cb6ae2af93cca4913e7fcd47

trunk/Documentation/acpi/dsdt-override.txt

@@ -1,15 +1,7 @@
-Linux supports two methods of overriding the BIOS DSDT:
+Linux supports a method of overriding the BIOS DSDT:
 
 CONFIG_ACPI_CUSTOM_DSDT builds the image into the kernel.
 
-CONFIG_ACPI_CUSTOM_DSDT_INITRD adds the image to the initrd.
-
-When to use these methods is described in detail on the
+When to use this method is described in detail on the
 Linux/ACPI home page:
 http://www.lesswatts.org/projects/acpi/overridingDSDT.php
-
-Note that if both options are used, the DSDT supplied
-by the INITRD method takes precedence.
-
-Documentation/initramfs-add-dsdt.sh is provided for convenience
-for use with the CONFIG_ACPI_CUSTOM_DSDT_INITRD method.

trunk/Documentation/kernel-parameters.txt

@@ -177,9 +177,6 @@ and is between 256 and 4096 characters. It is defined in the file
 
 	acpi_no_auto_ssdt	[HW,ACPI] Disable automatic loading of SSDT
 
-	acpi_no_initrd_override	[KNL,ACPI]
-			Disable loading custom ACPI tables from the initramfs
-
 	acpi_os_name=	[HW,ACPI] Tell ACPI BIOS the name of the OS
 			Format: To spoof as Windows 98: ="Microsoft Windows"
 

trunk/drivers/acpi/Kconfig

@@ -300,17 +300,6 @@ config ACPI_CUSTOM_DSDT
 	bool
 	default ACPI_CUSTOM_DSDT_FILE != ""
 
-config ACPI_CUSTOM_DSDT_INITRD
-	bool "Read Custom DSDT from initramfs"
-	depends on BLK_DEV_INITRD
-	default n
-	help
-	  This option supports a custom DSDT by optionally loading it from initrd.
-	  See Documentation/acpi/dsdt-override.txt
-
-	  If you are not using this feature now, but may use it later,
-	  it is safe to say Y here.
-
 config ACPI_BLACKLIST_YEAR
 	int "Disable ACPI for systems before Jan 1st this year" if X86_32
 	default 0

trunk/drivers/acpi/osl.c

@@ -91,10 +91,6 @@ static DEFINE_SPINLOCK(acpi_res_lock);
 #define	OSI_STRING_LENGTH_MAX 64	/* arbitrary */
 static char osi_additional_string[OSI_STRING_LENGTH_MAX];
 
-#ifdef CONFIG_ACPI_CUSTOM_DSDT_INITRD
-static int acpi_no_initrd_override;
-#endif
-
 /*
  * "Ode to _OSI(Linux)"
  *
@@ -324,67 +320,6 @@ acpi_os_predefined_override(const struct acpi_predefined_names *init_val,
 	return AE_OK;
 }
 
-#ifdef CONFIG_ACPI_CUSTOM_DSDT_INITRD
-static struct acpi_table_header *acpi_find_dsdt_initrd(void)
-{
-	struct file *firmware_file;
-	mm_segment_t oldfs;
-	unsigned long len, len2;
-	struct acpi_table_header *dsdt_buffer, *ret = NULL;
-	struct kstat stat;
-	char *ramfs_dsdt_name = "/DSDT.aml";
-
-	printk(KERN_INFO PREFIX "Checking initramfs for custom DSDT\n");
-
-	/*
-	 * Never do this at home, only the user-space is allowed to open a file.
-	 * The clean way would be to use the firmware loader.
-	 * But this code must be run before there is any userspace available.
-	 * A static/init firmware infrastructure doesn't exist yet...
-	 */
-	if (vfs_stat(ramfs_dsdt_name, &stat) < 0)
-		return ret;
-
-	len = stat.size;
-	/* check especially against empty files */
-	if (len <= 4) {
-		printk(KERN_ERR PREFIX "Failed: DSDT only %lu bytes.\n", len);
-		return ret;
-	}
-
-	firmware_file = filp_open(ramfs_dsdt_name, O_RDONLY, 0);
-	if (IS_ERR(firmware_file)) {
-		printk(KERN_ERR PREFIX "Failed to open %s.\n", ramfs_dsdt_name);
-		return ret;
-	}
-
-	dsdt_buffer = kmalloc(len, GFP_ATOMIC);
-	if (!dsdt_buffer) {
-		printk(KERN_ERR PREFIX "Failed to allocate %lu bytes.\n", len);
-		goto err;
-	}
-
-	oldfs = get_fs();
-	set_fs(KERNEL_DS);
-	len2 = vfs_read(firmware_file, (char __user *)dsdt_buffer, len,
-		&firmware_file->f_pos);
-	set_fs(oldfs);
-	if (len2 < len) {
-		printk(KERN_ERR PREFIX "Failed to read %lu bytes from %s.\n",
-			len, ramfs_dsdt_name);
-		ACPI_FREE(dsdt_buffer);
-		goto err;
-	}
-
-	printk(KERN_INFO PREFIX "Found %lu byte DSDT in %s.\n",
-			len, ramfs_dsdt_name);
-	ret = dsdt_buffer;
-err:
-	filp_close(firmware_file, NULL);
-	return ret;
-}
-#endif
-
 acpi_status
 acpi_os_table_override(struct acpi_table_header * existing_table,
 		       struct acpi_table_header ** new_table)
@@ -397,16 +332,6 @@ acpi_os_table_override(struct acpi_table_header * existing_table,
 #ifdef CONFIG_ACPI_CUSTOM_DSDT
 	if (strncmp(existing_table->signature, "DSDT", 4) == 0)
 		*new_table = (struct acpi_table_header *)AmlCode;
-#endif
-#ifdef CONFIG_ACPI_CUSTOM_DSDT_INITRD
-	if ((strncmp(existing_table->signature, "DSDT", 4) == 0) &&
-	    !acpi_no_initrd_override) {
-		struct acpi_table_header *initrd_table;
-
-		initrd_table = acpi_find_dsdt_initrd();
-		if (initrd_table)
-			*new_table = initrd_table;
-	}
 #endif
 	if (*new_table != NULL) {
 		printk(KERN_WARNING PREFIX "Override [%4.4s-%8.8s], "
@@ -418,15 +343,6 @@ acpi_os_table_override(struct acpi_table_header * existing_table,
 	return AE_OK;
 }
 
-#ifdef CONFIG_ACPI_CUSTOM_DSDT_INITRD
-static int __init acpi_no_initrd_override_setup(char *s)
-{
-	acpi_no_initrd_override = 1;
-	return 1;
-}
-__setup("acpi_no_initrd_override", acpi_no_initrd_override_setup);
-#endif
-
 static irqreturn_t acpi_irq(int irq, void *dev_id)
 {
 	u32 handled;

trunk/init/initramfs.c

@@ -538,7 +538,7 @@ static void __init free_initrd(void)
 	initrd_end = 0;
 }
 
-int __init populate_rootfs(void)
+static int __init populate_rootfs(void)
 {
 	char *err = unpack_to_rootfs(__initramfs_start,
 			 __initramfs_end - __initramfs_start, 0);
@@ -577,10 +577,4 @@ int __init populate_rootfs(void)
 	}
 	return 0;
 }
-#ifndef CONFIG_ACPI_CUSTOM_DSDT_INITRD
-/*
- * if this option is enabled, populate_rootfs() is called _earlier_ in the
- * boot sequence. This insures that the ACPI initialisation can find the file.
- */
 rootfs_initcall(populate_rootfs);
-#endif

trunk/init/main.c

@@ -102,12 +102,6 @@ static inline void mark_rodata_ro(void) { }
 extern void tc_init(void);
 #endif
 
-#ifdef CONFIG_ACPI_CUSTOM_DSDT_INITRD
-extern int populate_rootfs(void);
-#else
-static inline void populate_rootfs(void) {}
-#endif
-
 enum system_states system_state;
 EXPORT_SYMBOL(system_state);
 
@@ -650,7 +644,6 @@ asmlinkage void __init start_kernel(void)
 
 	check_bugs();
 
-	populate_rootfs(); /* For DSDT override from initramfs */
 	acpi_early_init(); /* before LAPIC and SMP init */
 
 	/* Do the rest non-__init'ed, we're now alive */