Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

include/linux/acpi.h

@@ -587,7 +587,7 @@ extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
 const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
 					       const struct device *dev);
 
-void *acpi_get_match_data(const struct device *dev);
+const void *acpi_device_get_match_data(const struct device *dev);
 extern bool acpi_driver_match_device(struct device *dev,
 				     const struct device_driver *drv);
 int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
@@ -766,7 +766,7 @@ static inline const struct acpi_device_id *acpi_match_device(
 	return NULL;
 }
 
-static inline void *acpi_get_match_data(const struct device *dev)
+static inline const void *acpi_device_get_match_data(const struct device *dev)
 {
 	return NULL;
 }

include/linux/blkdev.h

@@ -49,7 +49,7 @@ struct blk_stat_callback;
 #define BLKDEV_MIN_RQ	4
 #define BLKDEV_MAX_RQ	128	/* Default maximum */
 
-/* Must be consisitent with blk_mq_poll_stats_bkt() */
+/* Must be consistent with blk_mq_poll_stats_bkt() */
 #define BLK_MQ_POLL_STATS_BKTS 16
 
 /*

include/linux/compiler-gcc.h

@@ -167,8 +167,6 @@
 
 #if GCC_VERSION >= 40100
 # define __compiletime_object_size(obj) __builtin_object_size(obj, 0)
-
-#define __nostackprotector	__attribute__((__optimize__("no-stack-protector")))
 #endif
 
 #if GCC_VERSION >= 40300
@@ -196,6 +194,11 @@
 #endif /* __CHECKER__ */
 #endif /* GCC_VERSION >= 40300 */
 
+#if GCC_VERSION >= 40400
+#define __optimize(level)	__attribute__((__optimize__(level)))
+#define __nostackprotector	__optimize("no-stack-protector")
+#endif /* GCC_VERSION >= 40400 */
+
 #if GCC_VERSION >= 40500
 
 #ifndef __CHECKER__

include/linux/compiler.h

@@ -277,6 +277,10 @@ unsigned long read_word_at_a_time(const void *addr)
 
 #endif /* __ASSEMBLY__ */
 
+#ifndef __optimize
+# define __optimize(level)
+#endif
+
 /* Compile time object size, -1 for unknown */
 #ifndef __compiletime_object_size
 # define __compiletime_object_size(obj) -1

include/linux/cpuidle.h

@@ -225,7 +225,7 @@ static inline void cpuidle_coupled_parallel_barrier(struct cpuidle_device *dev,
 }
 #endif
 
-#ifdef CONFIG_ARCH_HAS_CPU_RELAX
+#if defined(CONFIG_CPU_IDLE) && defined(CONFIG_ARCH_HAS_CPU_RELAX)
 void cpuidle_poll_state_init(struct cpuidle_driver *drv);
 #else
 static inline void cpuidle_poll_state_init(struct cpuidle_driver *drv) {}

include/linux/cpumask.h

@@ -170,6 +170,8 @@ static inline unsigned int cpumask_local_spread(unsigned int i, int node)
 	for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask)
 #define for_each_cpu_not(cpu, mask)		\
 	for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask)
+#define for_each_cpu_wrap(cpu, mask, start)	\
+	for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask, (void)(start))
 #define for_each_cpu_and(cpu, mask, and)	\
 	for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask, (void)and)
 #else

include/linux/dma-mapping.h

@@ -578,7 +578,7 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
 
 /*
  * This is a hack for the legacy x86 forbid_dac and iommu_sac_force. Please
- * don't use this is new code.
+ * don't use this in new code.
  */
 #ifndef arch_dma_supported
 #define arch_dma_supported(dev, mask)	(1)

include/linux/fwnode.h

@@ -73,8 +73,8 @@ struct fwnode_operations {
 	struct fwnode_handle *(*get)(struct fwnode_handle *fwnode);
 	void (*put)(struct fwnode_handle *fwnode);
 	bool (*device_is_available)(const struct fwnode_handle *fwnode);
-	void *(*device_get_match_data)(const struct fwnode_handle *fwnode,
-				       const struct device *dev);
+	const void *(*device_get_match_data)(const struct fwnode_handle *fwnode,
+					     const struct device *dev);
 	bool (*property_present)(const struct fwnode_handle *fwnode,
 				 const char *propname);
 	int (*property_read_int_array)(const struct fwnode_handle *fwnode,

include/linux/kcore.h

@@ -10,6 +10,7 @@ enum kcore_type {
 	KCORE_VMALLOC,
 	KCORE_RAM,
 	KCORE_VMEMMAP,
+	KCORE_USER,
 	KCORE_OTHER,
 };
 

include/linux/mm_inline.h

@@ -127,10 +127,4 @@ static __always_inline enum lru_list page_lru(struct page *page)
 
 #define lru_to_page(head) (list_entry((head)->prev, struct page, lru))
 
-#ifdef arch_unmap_kpfn
-extern void arch_unmap_kpfn(unsigned long pfn);
-#else
-static __always_inline void arch_unmap_kpfn(unsigned long pfn) { }
-#endif
-
 #endif

include/linux/nospec.h

@@ -19,20 +19,6 @@
 static inline unsigned long array_index_mask_nospec(unsigned long index,
 						    unsigned long size)
 {
-	/*
-	 * Warn developers about inappropriate array_index_nospec() usage.
-	 *
-	 * Even if the CPU speculates past the WARN_ONCE branch, the
-	 * sign bit of @index is taken into account when generating the
-	 * mask.
-	 *
-	 * This warning is compiled out when the compiler can infer that
-	 * @index and @size are less than LONG_MAX.
-	 */
-	if (WARN_ONCE(index > LONG_MAX || size > LONG_MAX,
-			"array_index_nospec() limited to range of [0, LONG_MAX]\n"))
-		return 0;
-
 	/*
 	 * Always calculate and emit the mask even if the compiler
 	 * thinks the mask is not needed. The compiler does not take
@@ -43,6 +29,26 @@ static inline unsigned long array_index_mask_nospec(unsigned long index,
 }
 #endif
 
+/*
+ * Warn developers about inappropriate array_index_nospec() usage.
+ *
+ * Even if the CPU speculates past the WARN_ONCE branch, the
+ * sign bit of @index is taken into account when generating the
+ * mask.
+ *
+ * This warning is compiled out when the compiler can infer that
+ * @index and @size are less than LONG_MAX.
+ */
+#define array_index_mask_nospec_check(index, size)				\
+({										\
+	if (WARN_ONCE(index > LONG_MAX || size > LONG_MAX,			\
+	    "array_index_nospec() limited to range of [0, LONG_MAX]\n"))	\
+		_mask = 0;							\
+	else									\
+		_mask = array_index_mask_nospec(index, size);			\
+	_mask;									\
+})
+
 /*
  * array_index_nospec - sanitize an array index after a bounds check
  *
@@ -61,7 +67,7 @@ static inline unsigned long array_index_mask_nospec(unsigned long index,
 ({									\
 	typeof(index) _i = (index);					\
 	typeof(size) _s = (size);					\
-	unsigned long _mask = array_index_mask_nospec(_i, _s);		\
+	unsigned long _mask = array_index_mask_nospec_check(_i, _s);	\
 									\
 	BUILD_BUG_ON(sizeof(_i) > sizeof(long));			\
 	BUILD_BUG_ON(sizeof(_s) > sizeof(long));			\

include/linux/property.h

@@ -283,7 +283,7 @@ bool device_dma_supported(struct device *dev);
 
 enum dev_dma_attr device_get_dma_attr(struct device *dev);
 
-void *device_get_match_data(struct device *dev);
+const void *device_get_match_data(struct device *dev);
 
 int device_get_phy_mode(struct device *dev);
 

include/linux/ptr_ring.h

@@ -470,7 +470,7 @@ static inline int ptr_ring_consume_batched_bh(struct ptr_ring *r,
  */
 static inline void **__ptr_ring_init_queue_alloc(unsigned int size, gfp_t gfp)
 {
-	if (size * sizeof(void *) > KMALLOC_MAX_SIZE)
+	if (size > KMALLOC_MAX_SIZE / sizeof(void *))
 		return NULL;
 	return kvmalloc_array(size, sizeof(void *), gfp | __GFP_ZERO);
 }

include/linux/semaphore.h

@@ -4,7 +4,7 @@
  *
  * Distributed under the terms of the GNU GPL, version 2
  *
- * Please see kernel/semaphore.c for documentation of these functions
+ * Please see kernel/locking/semaphore.c for documentation of these functions
  */
 #ifndef __LINUX_SEMAPHORE_H
 #define __LINUX_SEMAPHORE_H

include/linux/skbuff.h

@@ -3649,7 +3649,7 @@ static inline bool __skb_checksum_validate_needed(struct sk_buff *skb,
 	return true;
 }
 
-/* For small packets <= CHECKSUM_BREAK peform checksum complete directly
+/* For small packets <= CHECKSUM_BREAK perform checksum complete directly
  * in checksum_init.
  */
 #define CHECKSUM_BREAK 76