Merge tag 'v3.15-rc1' into patchwork

Linux 3.15-rc1

* tag 'v3.15-rc1': (12180 commits)
  Linux 3.15-rc1
  mm: Initialize error in shmem_file_aio_read()
  cifs: Use min_t() when comparing "size_t" and "unsigned long"
  sym53c8xx_2: Set DID_REQUEUE return code when aborting squeue
  powerpc: Don't try to set LPCR unless we're in hypervisor mode
  futex: update documentation for ordering guarantees
  ceph: fix pr_fmt() redefinition
  vti: don't allow to add the same tunnel twice
  gre: don't allow to add the same tunnel twice
  drivers: net: xen-netfront: fix array initialization bug
  missing bits of "splice: fix racy pipe->buffers uses"
  cifs: fix the race in cifs_writev()
  ceph_sync_{,direct_}write: fix an oops on ceph_osdc_new_request() failure
  pktgen: be friendly to LLTX devices
  r8152: check RTL8152_UNPLUG
  net: sun4i-emac: add promiscuous support
  net/apne: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERO
  blackfin: cleanup board files
  bf609: clock: drop unused clock bit set/clear functions
  Blackfin: bf537: rename "CONFIG_ADT75"
  ...

1 files changed, 3 insertions, 221 deletions

diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index 799580cabc78..597ac155c91c 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -328,17 +328,6 @@ void unxlate_dev_mem_ptr(unsigned long phys, void *addr)
 	return;
 }
 
-static int __initdata early_ioremap_debug;
-
-static int __init early_ioremap_debug_setup(char *str)
-{
-	early_ioremap_debug = 1;
-
-	return 0;
-}
-early_param("early_ioremap_debug", early_ioremap_debug_setup);
-
-static __initdata int after_paging_init;
 static pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __page_aligned_bss;
 
 static inline pmd_t * __init early_ioremap_pmd(unsigned long addr)
@@ -362,18 +351,11 @@ bool __init is_early_ioremap_ptep(pte_t *ptep)
 	return ptep >= &bm_pte[0] && ptep < &bm_pte[PAGE_SIZE/sizeof(pte_t)];
 }
 
-static unsigned long slot_virt[FIX_BTMAPS_SLOTS] __initdata;
-
 void __init early_ioremap_init(void)
 {
 	pmd_t *pmd;
-	int i;
 
-	if (early_ioremap_debug)
-		printk(KERN_INFO "early_ioremap_init()\n");
-
-	for (i = 0; i < FIX_BTMAPS_SLOTS; i++)
-		slot_virt[i] = __fix_to_virt(FIX_BTMAP_BEGIN - NR_FIX_BTMAPS*i);
+	early_ioremap_setup();
 
 	pmd = early_ioremap_pmd(fix_to_virt(FIX_BTMAP_BEGIN));
 	memset(bm_pte, 0, sizeof(bm_pte));
@@ -402,13 +384,8 @@ void __init early_ioremap_init(void)
 	}
 }
 
-void __init early_ioremap_reset(void)
-{
-	after_paging_init = 1;
-}
-
-static void __init __early_set_fixmap(enum fixed_addresses idx,
-				      phys_addr_t phys, pgprot_t flags)
+void __init __early_set_fixmap(enum fixed_addresses idx,
+			       phys_addr_t phys, pgprot_t flags)
 {
 	unsigned long addr = __fix_to_virt(idx);
 	pte_t *pte;
@@ -425,198 +402,3 @@ static void __init __early_set_fixmap(enum fixed_addresses idx,
 		pte_clear(&init_mm, addr, pte);
 	__flush_tlb_one(addr);
 }
-
-static inline void __init early_set_fixmap(enum fixed_addresses idx,
-					   phys_addr_t phys, pgprot_t prot)
-{
-	if (after_paging_init)
-		__set_fixmap(idx, phys, prot);
-	else
-		__early_set_fixmap(idx, phys, prot);
-}
-
-static inline void __init early_clear_fixmap(enum fixed_addresses idx)
-{
-	if (after_paging_init)
-		clear_fixmap(idx);
-	else
-		__early_set_fixmap(idx, 0, __pgprot(0));
-}
-
-static void __iomem *prev_map[FIX_BTMAPS_SLOTS] __initdata;
-static unsigned long prev_size[FIX_BTMAPS_SLOTS] __initdata;
-
-void __init fixup_early_ioremap(void)
-{
-	int i;
-
-	for (i = 0; i < FIX_BTMAPS_SLOTS; i++) {
-		if (prev_map[i]) {
-			WARN_ON(1);
-			break;
-		}
-	}
-
-	early_ioremap_init();
-}
-
-static int __init check_early_ioremap_leak(void)
-{
-	int count = 0;
-	int i;
-
-	for (i = 0; i < FIX_BTMAPS_SLOTS; i++)
-		if (prev_map[i])
-			count++;
-
-	if (!count)
-		return 0;
-	WARN(1, KERN_WARNING
-	       "Debug warning: early ioremap leak of %d areas detected.\n",
-		count);
-	printk(KERN_WARNING
-		"please boot with early_ioremap_debug and report the dmesg.\n");
-
-	return 1;
-}
-late_initcall(check_early_ioremap_leak);
-
-static void __init __iomem *
-__early_ioremap(resource_size_t phys_addr, unsigned long size, pgprot_t prot)
-{
-	unsigned long offset;
-	resource_size_t last_addr;
-	unsigned int nrpages;
-	enum fixed_addresses idx;
-	int i, slot;
-
-	WARN_ON(system_state != SYSTEM_BOOTING);
-
-	slot = -1;
-	for (i = 0; i < FIX_BTMAPS_SLOTS; i++) {
-		if (!prev_map[i]) {
-			slot = i;
-			break;
-		}
-	}
-
-	if (slot < 0) {
-		printk(KERN_INFO "%s(%08llx, %08lx) not found slot\n",
-		       __func__, (u64)phys_addr, size);
-		WARN_ON(1);
-		return NULL;
-	}
-
-	if (early_ioremap_debug) {
-		printk(KERN_INFO "%s(%08llx, %08lx) [%d] => ",
-		       __func__, (u64)phys_addr, size, slot);
-		dump_stack();
-	}
-
-	/* Don't allow wraparound or zero size */
-	last_addr = phys_addr + size - 1;
-	if (!size || last_addr < phys_addr) {
-		WARN_ON(1);
-		return NULL;
-	}
-
-	prev_size[slot] = size;
-	/*
-	 * Mappings have to be page-aligned
-	 */
-	offset = phys_addr & ~PAGE_MASK;
-	phys_addr &= PAGE_MASK;
-	size = PAGE_ALIGN(last_addr + 1) - phys_addr;
-
-	/*
-	 * Mappings have to fit in the FIX_BTMAP area.
-	 */
-	nrpages = size >> PAGE_SHIFT;
-	if (nrpages > NR_FIX_BTMAPS) {
-		WARN_ON(1);
-		return NULL;
-	}
-
-	/*
-	 * Ok, go for it..
-	 */
-	idx = FIX_BTMAP_BEGIN - NR_FIX_BTMAPS*slot;
-	while (nrpages > 0) {
-		early_set_fixmap(idx, phys_addr, prot);
-		phys_addr += PAGE_SIZE;
-		--idx;
-		--nrpages;
-	}
-	if (early_ioremap_debug)
-		printk(KERN_CONT "%08lx + %08lx\n", offset, slot_virt[slot]);
-
-	prev_map[slot] = (void __iomem *)(offset + slot_virt[slot]);
-	return prev_map[slot];
-}
-
-/* Remap an IO device */
-void __init __iomem *
-early_ioremap(resource_size_t phys_addr, unsigned long size)
-{
-	return __early_ioremap(phys_addr, size, PAGE_KERNEL_IO);
-}
-
-/* Remap memory */
-void __init __iomem *
-early_memremap(resource_size_t phys_addr, unsigned long size)
-{
-	return __early_ioremap(phys_addr, size, PAGE_KERNEL);
-}
-
-void __init early_iounmap(void __iomem *addr, unsigned long size)
-{
-	unsigned long virt_addr;
-	unsigned long offset;
-	unsigned int nrpages;
-	enum fixed_addresses idx;
-	int i, slot;
-
-	slot = -1;
-	for (i = 0; i < FIX_BTMAPS_SLOTS; i++) {
-		if (prev_map[i] == addr) {
-			slot = i;
-			break;
-		}
-	}
-
-	if (slot < 0) {
-		printk(KERN_INFO "early_iounmap(%p, %08lx) not found slot\n",
-			 addr, size);
-		WARN_ON(1);
-		return;
-	}
-
-	if (prev_size[slot] != size) {
-		printk(KERN_INFO "early_iounmap(%p, %08lx) [%d] size not consistent %08lx\n",
-			 addr, size, slot, prev_size[slot]);
-		WARN_ON(1);
-		return;
-	}
-
-	if (early_ioremap_debug) {
-		printk(KERN_INFO "early_iounmap(%p, %08lx) [%d]\n", addr,
-		       size, slot);
-		dump_stack();
-	}
-
-	virt_addr = (unsigned long)addr;
-	if (virt_addr < fix_to_virt(FIX_BTMAP_BEGIN)) {
-		WARN_ON(1);
-		return;
-	}
-	offset = virt_addr & ~PAGE_MASK;
-	nrpages = PAGE_ALIGN(offset + size) >> PAGE_SHIFT;
-
-	idx = FIX_BTMAP_BEGIN - NR_FIX_BTMAPS*slot;
-	while (nrpages > 0) {
-		early_clear_fixmap(idx);
-		--idx;
-		--nrpages;
-	}
-	prev_map[slot] = NULL;
-}