Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

Conflicts:

	drivers/infiniband/core/iwcm.c
	drivers/net/chelsio/cxgb2.c
	drivers/net/wireless/bcm43xx/bcm43xx_main.c
	drivers/net/wireless/prism54/islpci_eth.c
	drivers/usb/core/hub.h
	drivers/usb/input/hid-core.c
	net/core/netpoll.c

Fix up merge failures with Linus's head and fix new compilation failures.

Signed-Off-By: David Howells <dhowells@redhat.com>

1 files changed, 54 insertions, 33 deletions

diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 8f6e89697ccf..89440a0d8528 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -145,13 +145,12 @@ static int __init rd_start_early(char *p)
 	unsigned long start = memparse(p, &p);
 
 #ifdef CONFIG_64BIT
-	/* HACK: Guess if the sign extension was forgotten */
-	if (start > 0x0000000080000000 && start < 0x00000000ffffffff)
-		start |= 0xffffffff00000000UL;
+	/* Guess if the sign extension was forgotten by bootloader */
+	if (start < XKPHYS)
+		start = (int)start;
 #endif
 	initrd_start = start;
 	initrd_end += start;
-
 	return 0;
 }
 early_param("rd_start", rd_start_early);
@@ -159,41 +158,64 @@ early_param("rd_start", rd_start_early);
 static int __init rd_size_early(char *p)
 {
 	initrd_end += memparse(p, &p);
-
 	return 0;
 }
 early_param("rd_size", rd_size_early);
 
+/* it returns the next free pfn after initrd */
 static unsigned long __init init_initrd(void)
 {
-	unsigned long tmp, end, size;
+	unsigned long end;
 	u32 *initrd_header;
 
-	ROOT_DEV = Root_RAM0;
-
 	/*
 	 * Board specific code or command line parser should have
 	 * already set up initrd_start and initrd_end. In these cases
 	 * perfom sanity checks and use them if all looks good.
 	 */
-	size = initrd_end - initrd_start;
-	if (initrd_end == 0 || size == 0) {
-		initrd_start = 0;
-		initrd_end = 0;
-	} else
-		return initrd_end;
-
-	end = (unsigned long)&_end;
-	tmp = PAGE_ALIGN(end) - sizeof(u32) * 2;
-	if (tmp < end)
-		tmp += PAGE_SIZE;
-
-	initrd_header = (u32 *)tmp;
-	if (initrd_header[0] == 0x494E5244) {
-		initrd_start = (unsigned long)&initrd_header[2];
-		initrd_end = initrd_start + initrd_header[1];
+	if (initrd_start && initrd_end > initrd_start)
+		goto sanitize;
+
+	/*
+	 * See if initrd has been added to the kernel image by
+	 * arch/mips/boot/addinitrd.c. In that case a header is
+	 * prepended to initrd and is made up by 8 bytes. The fisrt
+	 * word is a magic number and the second one is the size of
+	 * initrd.  Initrd start must be page aligned in any cases.
+	 */
+	initrd_header = __va(PAGE_ALIGN(__pa_symbol(&_end) + 8)) - 8;
+	if (initrd_header[0] != 0x494E5244)
+		goto disable;
+	initrd_start = (unsigned long)(initrd_header + 2);
+	initrd_end = initrd_start + initrd_header[1];
+
+sanitize:
+	if (initrd_start & ~PAGE_MASK) {
+		printk(KERN_ERR "initrd start must be page aligned\n");
+		goto disable;
 	}
-	return initrd_end;
+	if (initrd_start < PAGE_OFFSET) {
+		printk(KERN_ERR "initrd start < PAGE_OFFSET\n");
+		goto disable;
+	}
+
+	/*
+	 * Sanitize initrd addresses. For example firmware
+	 * can't guess if they need to pass them through
+	 * 64-bits values if the kernel has been built in pure
+	 * 32-bit. We need also to switch from KSEG0 to XKPHYS
+	 * addresses now, so the code can now safely use __pa().
+	 */
+	end = __pa(initrd_end);
+	initrd_end = (unsigned long)__va(end);
+	initrd_start = (unsigned long)__va(__pa(initrd_start));
+
+	ROOT_DEV = Root_RAM0;
+	return PFN_UP(end);
+disable:
+	initrd_start = 0;
+	initrd_end = 0;
+	return 0;
 }
 
 static void __init finalize_initrd(void)
@@ -204,12 +226,12 @@ static void __init finalize_initrd(void)
 		printk(KERN_INFO "Initrd not found or empty");
 		goto disable;
 	}
-	if (CPHYSADDR(initrd_end) > PFN_PHYS(max_low_pfn)) {
+	if (__pa(initrd_end) > PFN_PHYS(max_low_pfn)) {
 		printk("Initrd extends beyond end of memory");
 		goto disable;
 	}
 
-	reserve_bootmem(CPHYSADDR(initrd_start), size);
+	reserve_bootmem(__pa(initrd_start), size);
 	initrd_below_start_ok = 1;
 
 	printk(KERN_INFO "Initial ramdisk at: 0x%lx (%lu bytes)\n",
@@ -259,8 +281,7 @@ static void __init bootmem_init(void)
 	 * not selected. Once that done we can determine the low bound
 	 * of usable memory.
 	 */
-	reserved_end = init_initrd();
-	reserved_end = PFN_UP(CPHYSADDR(max(reserved_end, (unsigned long)&_end)));
+	reserved_end = max(init_initrd(), PFN_UP(__pa_symbol(&_end)));
 
 	/*
 	 * Find the highest page frame number we have available.
@@ -432,10 +453,10 @@ static void __init resource_init(void)
 	if (UNCAC_BASE != IO_BASE)
 		return;
 
-	code_resource.start = virt_to_phys(&_text);
-	code_resource.end = virt_to_phys(&_etext) - 1;
-	data_resource.start = virt_to_phys(&_etext);
-	data_resource.end = virt_to_phys(&_edata) - 1;
+	code_resource.start = __pa_symbol(&_text);
+	code_resource.end = __pa_symbol(&_etext) - 1;
+	data_resource.start = __pa_symbol(&_etext);
+	data_resource.end = __pa_symbol(&_edata) - 1;
 
 	/*
 	 * Request address space for all standard RAM.