diff --git a/arch/powerpc/include/asm/fb.h b/arch/powerpc/include/asm/fb.h
index 3cecf14d51de8661a2e9af0df8244c3b37c2886c..c0c5d1df7ad1ec796124099285110c2b0e40f48e 100644
--- a/arch/powerpc/include/asm/fb.h
+++ b/arch/powerpc/include/asm/fb.h
@@ -8,12 +8,7 @@ static inline pgprot_t pgprot_framebuffer(pgprot_t prot,
unsigned long vm_start, unsigned long vm_end,
unsigned long offset)
{
- /*
- * PowerPC's implementation of phys_mem_access_prot() does
- * not use the file argument. Set it to NULL in preparation
- * of later updates to the interface.
- */
- return phys_mem_access_prot(NULL, PHYS_PFN(offset), vm_end - vm_start, prot);
+ return __phys_mem_access_prot(PHYS_PFN(offset), vm_end - vm_start, prot);
}
#define pgprot_framebuffer pgprot_framebuffer
diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h
index 4f6e7d7ee3883c2f7fca4259bf6db50f14072638..d31a5ec1550d4b051dfce4c1680b3d62f43af3a7 100644
--- a/arch/powerpc/include/asm/machdep.h
+++ b/arch/powerpc/include/asm/machdep.h
@@ -10,7 +10,7 @@
#include <linux/export.h>
struct pt_regs;
-struct pci_bus;
+struct pci_bus;
struct device_node;
struct iommu_table;
struct rtc_time;
@@ -78,8 +78,8 @@ struct machdep_calls {
unsigned char (*nvram_read_val)(int addr);
void (*nvram_write_val)(int addr, unsigned char val);
ssize_t (*nvram_write)(char *buf, size_t count, loff_t *index);
- ssize_t (*nvram_read)(char *buf, size_t count, loff_t *index);
- ssize_t (*nvram_size)(void);
+ ssize_t (*nvram_read)(char *buf, size_t count, loff_t *index);
+ ssize_t (*nvram_size)(void);
void (*nvram_sync)(void);
/* Exception handlers */
@@ -102,12 +102,11 @@ struct machdep_calls {
*/
long (*feature_call)(unsigned int feature, ...);
- /* Get legacy PCI/IDE interrupt mapping */
+ /* Get legacy PCI/IDE interrupt mapping */
int (*pci_get_legacy_ide_irq)(struct pci_dev *dev, int channel);
-
+
/* Get access protection for /dev/mem */
- pgprot_t (*phys_mem_access_prot)(struct file *file,
- unsigned long pfn,
+ pgprot_t (*phys_mem_access_prot)(unsigned long pfn,
unsigned long size,
pgprot_t vma_prot);
diff --git a/arch/powerpc/include/asm/pci.h b/arch/powerpc/include/asm/pci.h
index f5078a7dd85a523788c89c8f8ece0500f7205b2c..46a9c4491ed0cb1931bd78cfc4d7b12f1822a4fe 100644
--- a/arch/powerpc/include/asm/pci.h
+++ b/arch/powerpc/include/asm/pci.h
@@ -105,9 +105,7 @@ extern void of_scan_pci_bridge(struct pci_dev *dev);
extern void of_scan_bus(struct device_node *node, struct pci_bus *bus);
extern void of_rescan_bus(struct device_node *node, struct pci_bus *bus);
-struct file;
-extern pgprot_t pci_phys_mem_access_prot(struct file *file,
- unsigned long pfn,
+extern pgprot_t pci_phys_mem_access_prot(unsigned long pfn,
unsigned long size,
pgprot_t prot);
diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h
index 2bfb7dd3b49e6ccae334de4ccb0064a6b47b1845..9224f23065fff999768278a219542c37010e7325 100644
--- a/arch/powerpc/include/asm/pgtable.h
+++ b/arch/powerpc/include/asm/pgtable.h
@@ -120,9 +120,15 @@ static inline void mark_initmem_nx(void) { }
int ptep_set_access_flags(struct vm_area_struct *vma, unsigned long address,
pte_t *ptep, pte_t entry, int dirty);
+pgprot_t __phys_mem_access_prot(unsigned long pfn, unsigned long size,
+ pgprot_t vma_prot);
+
struct file;
-pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
- unsigned long size, pgprot_t vma_prot);
+static inline pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
+ unsigned long size, pgprot_t vma_prot)
+{
+ return __phys_mem_access_prot(pfn, size, vma_prot);
+}
#define __HAVE_PHYS_MEM_ACCESS_PROT
void __update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *ptep);
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 040255ddb5697dda579c9ecdda2369f2b393ecee..d95a48eff412ee0cf275c5aedee832fd7b8895ae 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -521,8 +521,7 @@ int pci_iobar_pfn(struct pci_dev *pdev, int bar, struct vm_area_struct *vma)
* PCI device, it tries to find the PCI device first and calls the
* above routine
*/
-pgprot_t pci_phys_mem_access_prot(struct file *file,
- unsigned long pfn,
+pgprot_t pci_phys_mem_access_prot(unsigned long pfn,
unsigned long size,
pgprot_t prot)
{
diff --git a/arch/powerpc/kernel/rtas-proc.c b/arch/powerpc/kernel/rtas-proc.c
index 9454b8395b6ac9b6d2e50e92c52629dff1f7cbfb..f38df72e64b877533939be7964d4fb0f297cc331 100644
--- a/arch/powerpc/kernel/rtas-proc.c
+++ b/arch/powerpc/kernel/rtas-proc.c
@@ -752,6 +752,8 @@ static int ppc_rtas_tone_volume_show(struct seq_file *m, void *v)
/**
* ppc_rtas_rmo_buf_show() - Describe RTAS-addressable region for user space.
+ * @m: seq_file output target.
+ * @v: Unused.
*
* Base + size description of a range of RTAS-addressable memory set
* aside for user space to use as work area(s) for certain RTAS
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 1717554b04b108ef62cc3508a3208a587fe11a70..3a440004b97d2b2b94aaa1fc0b05a76397a79953 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -35,18 +35,18 @@ unsigned long long memory_limit;
unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)] __page_aligned_bss;
EXPORT_SYMBOL(empty_zero_page);
-pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
- unsigned long size, pgprot_t vma_prot)
+pgprot_t __phys_mem_access_prot(unsigned long pfn, unsigned long size,
+ pgprot_t vma_prot)
{
if (ppc_md.phys_mem_access_prot)
- return ppc_md.phys_mem_access_prot(file, pfn, size, vma_prot);
+ return ppc_md.phys_mem_access_prot(pfn, size, vma_prot);
if (!page_is_ram(pfn))
vma_prot = pgprot_noncached(vma_prot);
return vma_prot;
}
-EXPORT_SYMBOL(phys_mem_access_prot);
+EXPORT_SYMBOL(__phys_mem_access_prot);
#ifdef CONFIG_MEMORY_HOTPLUG
static DEFINE_MUTEX(linear_mapping_mutex);
diff --git a/arch/powerpc/platforms/pseries/rtas-work-area.c b/arch/powerpc/platforms/pseries/rtas-work-area.c
index b37d52f40360e014915378a9dfe0faa771280438..7fe34bee84d89430b704879b874ca26d54ae7cb2 100644
--- a/arch/powerpc/platforms/pseries/rtas-work-area.c
+++ b/arch/powerpc/platforms/pseries/rtas-work-area.c
@@ -184,6 +184,7 @@ machine_arch_initcall(pseries, rtas_work_area_allocator_init);
/**
* rtas_work_area_reserve_arena() - Reserve memory suitable for RTAS work areas.
+ * @limit: Upper limit for memblock allocation.
*/
void __init rtas_work_area_reserve_arena(const phys_addr_t limit)
{