Merge branch 'next' (accumulated 3.16 merge window patches) into master

Now that 3.15 is released, this merges the 'next' branch into 'master',
bringing us to the normal situation where my 'master' branch is the
merge window.

* accumulated work in next: (6809 commits)
  ufs: sb mutex merge + mutex_destroy
  powerpc: update comments for generic idle conversion
  cris: update comments for generic idle conversion
  idle: remove cpu_idle() forward declarations
  nbd: zero from and len fields in NBD_CMD_DISCONNECT.
  mm: convert some level-less printks to pr_*
  MAINTAINERS: adi-buildroot-devel is moderated
  MAINTAINERS: add linux-api for review of API/ABI changes
  mm/kmemleak-test.c: use pr_fmt for logging
  fs/dlm/debug_fs.c: replace seq_printf by seq_puts
  fs/dlm/lockspace.c: convert simple_str to kstr
  fs/dlm/config.c: convert simple_str to kstr
  mm: mark remap_file_pages() syscall as deprecated
  mm: memcontrol: remove unnecessary memcg argument from soft limit functions
  mm: memcontrol: clean up memcg zoneinfo lookup
  mm/memblock.c: call kmemleak directly from memblock_(alloc|free)
  mm/mempool.c: update the kmemleak stack trace for mempool allocations
  lib/radix-tree.c: update the kmemleak stack trace for radix tree allocations
  mm: introduce kmemleak_update_trace()
  mm/kmemleak.c: use %u to print ->checksum
  ...

1 files changed, 2 insertions, 65 deletions

diff --git a/drivers/video/fbdev/omap/lcdc.c b/drivers/video/fbdev/omap/lcdc.c
index b52f62595f65..6efa2591eaa8 100644
--- a/drivers/video/fbdev/omap/lcdc.c
+++ b/drivers/video/fbdev/omap/lcdc.c
@@ -74,7 +74,6 @@ static struct omap_lcd_controller {
 	void			(*dma_callback)(void *data);
 	void			*dma_callback_data;
 
-	int			fbmem_allocated;
 	dma_addr_t		vram_phys;
 	void			*vram_virt;
 	unsigned long		vram_size;
@@ -611,42 +610,6 @@ static void lcdc_dma_handler(u16 status, void *data)
 		lcdc.dma_callback(lcdc.dma_callback_data);
 }
 
-static int mmap_kern(void)
-{
-	struct vm_struct	*kvma;
-	struct vm_area_struct	vma;
-	pgprot_t		pgprot;
-	unsigned long		vaddr;
-
-	kvma = get_vm_area(lcdc.vram_size, VM_IOREMAP);
-	if (kvma == NULL) {
-		dev_err(lcdc.fbdev->dev, "can't get kernel vm area\n");
-		return -ENOMEM;
-	}
-	vma.vm_mm = &init_mm;
-
-	vaddr = (unsigned long)kvma->addr;
-	vma.vm_start = vaddr;
-	vma.vm_end = vaddr + lcdc.vram_size;
-
-	pgprot = pgprot_writecombine(pgprot_kernel);
-	if (io_remap_pfn_range(&vma, vaddr,
-			   lcdc.vram_phys >> PAGE_SHIFT,
-			   lcdc.vram_size, pgprot) < 0) {
-		dev_err(lcdc.fbdev->dev, "kernel mmap for FB memory failed\n");
-		return -EAGAIN;
-	}
-
-	lcdc.vram_virt = (void *)vaddr;
-
-	return 0;
-}
-
-static void unmap_kern(void)
-{
-	vunmap(lcdc.vram_virt);
-}
-
 static int alloc_palette_ram(void)
 {
 	lcdc.palette_virt = dma_alloc_writecombine(lcdc.fbdev->dev,
@@ -703,8 +666,6 @@ static void free_fbmem(void)
 
 static int setup_fbmem(struct omapfb_mem_desc *req_md)
 {
-	int r;
-
 	if (!req_md->region_cnt) {
 		dev_err(lcdc.fbdev->dev, "no memory regions defined\n");
 		return -EINVAL;
@@ -715,31 +676,7 @@ static int setup_fbmem(struct omapfb_mem_desc *req_md)
 		req_md->region_cnt = 1;
 	}
 
-	if (req_md->region[0].paddr == 0) {
-		lcdc.fbmem_allocated = 1;
-		if ((r = alloc_fbmem(&req_md->region[0])) < 0)
-			return r;
-		return 0;
-	}
-
-	lcdc.vram_phys = req_md->region[0].paddr;
-	lcdc.vram_size = req_md->region[0].size;
-
-	if ((r = mmap_kern()) < 0)
-		return r;
-
-	dev_dbg(lcdc.fbdev->dev, "vram at %08x size %08lx mapped to 0x%p\n",
-		 lcdc.vram_phys, lcdc.vram_size, lcdc.vram_virt);
-
-	return 0;
-}
-
-static void cleanup_fbmem(void)
-{
-	if (lcdc.fbmem_allocated)
-		free_fbmem();
-	else
-		unmap_kern();
+	return alloc_fbmem(&req_md->region[0]);
 }
 
 static int omap_lcdc_init(struct omapfb_device *fbdev, int ext_mode,
@@ -833,7 +770,7 @@ static void omap_lcdc_cleanup(void)
 {
 	if (!lcdc.ext_mode)
 		free_palette_ram();
-	cleanup_fbmem();
+	free_fbmem();
 	omap_free_lcd_dma();
 	free_irq(OMAP_LCDC_IRQ, lcdc.fbdev);
 	clk_disable(lcdc.lcd_ck);