Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm

Pull ARM updates from Russell King:

 - amba bus cleanups

 - conversion to use reserve_initrd_mem()

 - remove -nostdlib from vdso link

* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
  ARM: 9181/1: vdso: remove -nostdlib compiler flag
  ARM: 9175/1: Convert to reserve_initrd_mem()
  ARM: 9174/1: amba: Move EXPORT_SYMBOL() closer to definition
  ARM: 9173/1: amba: kill amba_find_match()
  ARM: 9172/1: amba: Cleanup amba pclk operation

Author: torvalds

arch/arm/mm/init.c

@@ -164,47 +164,6 @@ phys_addr_t __init arm_memblock_steal(phys_addr_t size, phys_addr_t align)
 	return phys;
 }
 
-static void __init arm_initrd_init(void)
-{
-#ifdef CONFIG_BLK_DEV_INITRD
-	phys_addr_t start;
-	unsigned long size;
-
-	initrd_start = initrd_end = 0;
-
-	if (!phys_initrd_size)
-		return;
-
-	/*
-	 * Round the memory region to page boundaries as per free_initrd_mem()
-	 * This allows us to detect whether the pages overlapping the initrd
-	 * are in use, but more importantly, reserves the entire set of pages
-	 * as we don't want these pages allocated for other purposes.
-	 */
-	start = round_down(phys_initrd_start, PAGE_SIZE);
-	size = phys_initrd_size + (phys_initrd_start - start);
-	size = round_up(size, PAGE_SIZE);
-
-	if (!memblock_is_region_memory(start, size)) {
-		pr_err("INITRD: 0x%08llx+0x%08lx is not a memory region - disabling initrd\n",
-		       (u64)start, size);
-		return;
-	}
-
-	if (memblock_is_region_reserved(start, size)) {
-		pr_err("INITRD: 0x%08llx+0x%08lx overlaps in-use memory region - disabling initrd\n",
-		       (u64)start, size);
-		return;
-	}
-
-	memblock_reserve(start, size);
-
-	/* Now convert initrd to virtual addresses */
-	initrd_start = __phys_to_virt(phys_initrd_start);
-	initrd_end = initrd_start + phys_initrd_size;
-#endif
-}
-
 #ifdef CONFIG_CPU_ICACHE_MISMATCH_WORKAROUND
 void check_cpu_icache_size(int cpuid)
 {
@@ -226,7 +185,7 @@ void __init arm_memblock_init(const struct machine_desc *mdesc)
 	/* Register the kernel text, kernel data and initrd with memblock. */
 	memblock_reserve(__pa(KERNEL_START), KERNEL_END - KERNEL_START);
 
-	arm_initrd_init();
+	reserve_initrd_mem();
 
 	arm_mm_memblock_reserve();
 

arch/arm/vdso/Makefile

@@ -18,7 +18,7 @@ ccflags-y += -DDISABLE_BRANCH_PROFILING -DBUILD_VDSO32
 
 ldflags-$(CONFIG_CPU_ENDIAN_BE8) := --be8
 ldflags-y := -Bsymbolic --no-undefined -soname=linux-vdso.so.1 \
-	    -z max-page-size=4096 -nostdlib -shared $(ldflags-y) \
+	    -z max-page-size=4096 -shared $(ldflags-y) \
 	    --hash-style=sysv --build-id=sha1 \
 	    -T
 

drivers/amba/bus.c

@@ -370,6 +370,7 @@ int amba_driver_register(struct amba_driver *drv)
 
 	return driver_register(&drv->drv);
 }
+EXPORT_SYMBOL(amba_driver_register);
 
 /**
  *	amba_driver_unregister - remove an AMBA device driver
@@ -383,7 +384,7 @@ void amba_driver_unregister(struct amba_driver *drv)
 {
 	driver_unregister(&drv->drv);
 }
-
+EXPORT_SYMBOL(amba_driver_unregister);
 
 static void amba_device_release(struct device *dev)
 {
@@ -642,6 +643,7 @@ int amba_device_register(struct amba_device *dev, struct resource *parent)
 
 	return amba_device_add(dev, parent);
 }
+EXPORT_SYMBOL(amba_device_register);
 
 /**
  *	amba_device_put - put an AMBA device
@@ -668,66 +670,7 @@ void amba_device_unregister(struct amba_device *dev)
 {
 	device_unregister(&dev->dev);
 }
-
-
-struct find_data {
-	struct amba_device *dev;
-	struct device *parent;
-	const char *busid;
-	unsigned int id;
-	unsigned int mask;
-};
-
-static int amba_find_match(struct device *dev, void *data)
-{
-	struct find_data *d = data;
-	struct amba_device *pcdev = to_amba_device(dev);
-	int r;
-
-	r = (pcdev->periphid & d->mask) == d->id;
-	if (d->parent)
-		r &= d->parent == dev->parent;
-	if (d->busid)
-		r &= strcmp(dev_name(dev), d->busid) == 0;
-
-	if (r) {
-		get_device(dev);
-		d->dev = pcdev;
-	}
-
-	return r;
-}
-
-/**
- *	amba_find_device - locate an AMBA device given a bus id
- *	@busid: bus id for device (or NULL)
- *	@parent: parent device (or NULL)
- *	@id: peripheral ID (or 0)
- *	@mask: peripheral ID mask (or 0)
- *
- *	Return the AMBA device corresponding to the supplied parameters.
- *	If no device matches, returns NULL.
- *
- *	NOTE: When a valid device is found, its refcount is
- *	incremented, and must be decremented before the returned
- *	reference.
- */
-struct amba_device *
-amba_find_device(const char *busid, struct device *parent, unsigned int id,
-		 unsigned int mask)
-{
-	struct find_data data;
-
-	data.dev = NULL;
-	data.parent = parent;
-	data.busid = busid;
-	data.id = id;
-	data.mask = mask;
-
-	bus_for_each_dev(&amba_bustype, NULL, &data, amba_find_match);
-
-	return data.dev;
-}
+EXPORT_SYMBOL(amba_device_unregister);
 
 /**
  *	amba_request_regions - request all mem regions associated with device
@@ -749,6 +692,7 @@ int amba_request_regions(struct amba_device *dev, const char *name)
 
 	return ret;
 }
+EXPORT_SYMBOL(amba_request_regions);
 
 /**
  *	amba_release_regions - release mem regions associated with device
@@ -763,11 +707,4 @@ void amba_release_regions(struct amba_device *dev)
 	size = resource_size(&dev->res);
 	release_mem_region(dev->res.start, size);
 }
-
-EXPORT_SYMBOL(amba_driver_register);
-EXPORT_SYMBOL(amba_driver_unregister);
-EXPORT_SYMBOL(amba_device_register);
-EXPORT_SYMBOL(amba_device_unregister);
-EXPORT_SYMBOL(amba_find_device);
-EXPORT_SYMBOL(amba_request_regions);
 EXPORT_SYMBOL(amba_release_regions);

drivers/dma/pl330.c

@@ -2968,7 +2968,7 @@ static int __maybe_unused pl330_suspend(struct device *dev)
 	struct amba_device *pcdev = to_amba_device(dev);
 
 	pm_runtime_force_suspend(dev);
-	amba_pclk_unprepare(pcdev);
+	clk_unprepare(pcdev->pclk);
 
 	return 0;
 }
@@ -2978,7 +2978,7 @@ static int __maybe_unused pl330_resume(struct device *dev)
 	struct amba_device *pcdev = to_amba_device(dev);
 	int ret;
 
-	ret = amba_pclk_prepare(pcdev);
+	ret = clk_prepare(pcdev->pclk);
 	if (ret)
 		return ret;
 

include/linux/amba/bus.h

@@ -117,30 +117,9 @@ void amba_device_put(struct amba_device *);
 int amba_device_add(struct amba_device *, struct resource *);
 int amba_device_register(struct amba_device *, struct resource *);
 void amba_device_unregister(struct amba_device *);
-struct amba_device *amba_find_device(const char *, struct device *, unsigned int, unsigned int);
 int amba_request_regions(struct amba_device *, const char *);
 void amba_release_regions(struct amba_device *);
 
-static inline int amba_pclk_enable(struct amba_device *dev)
-{
-	return clk_enable(dev->pclk);
-}
-
-static inline void amba_pclk_disable(struct amba_device *dev)
-{
-	clk_disable(dev->pclk);
-}
-
-static inline int amba_pclk_prepare(struct amba_device *dev)
-{
-	return clk_prepare(dev->pclk);
-}
-
-static inline void amba_pclk_unprepare(struct amba_device *dev)
-{
-	clk_unprepare(dev->pclk);
-}
-
 /* Some drivers don't use the struct amba_device */
 #define AMBA_CONFIG_BITS(a) (((a) >> 24) & 0xff)
 #define AMBA_REV_BITS(a) (((a) >> 20) & 0x0f)