Merge remote-tracking branch 'lsk/v3.10/topic/gator' into linux-linaro-lsk

[firefly-linux-kernel-4.4.55.git] / include / linux / device.h

diff --git a/include/linux/device.h b/include/linux/device.h
index c0a12612532512bab2f792fba4b40580c48b13dd..c8709398a7540b80145c48a867f91b5972f2c77b 100644 (file)
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -26,6 +26,7 @@
 #include <linux/atomic.h>
 #include <linux/ratelimit.h>
 #include <linux/uidgid.h>
+#include <linux/gfp.h>
 #include <asm/device.h>
 
 struct device;
@@ -568,8 +569,24 @@ extern void devres_close_group(struct device *dev, void *id);
 extern void devres_remove_group(struct device *dev, void *id);
 extern int devres_release_group(struct device *dev, void *id);
 
-/* managed kzalloc/kfree for device drivers, no kmalloc, always use kzalloc */
-extern void *devm_kzalloc(struct device *dev, size_t size, gfp_t gfp);
+/* managed devm_k.alloc/kfree for device drivers */
+extern void *devm_kmalloc(struct device *dev, size_t size, gfp_t gfp);
+static inline void *devm_kzalloc(struct device *dev, size_t size, gfp_t gfp)
+{
+       return devm_kmalloc(dev, size, gfp | __GFP_ZERO);
+}
+static inline void *devm_kmalloc_array(struct device *dev,
+                                      size_t n, size_t size, gfp_t flags)
+{
+       if (size != 0 && n > SIZE_MAX / size)
+               return NULL;
+       return devm_kmalloc(dev, n * size, flags);
+}
+static inline void *devm_kcalloc(struct device *dev,
+                                size_t n, size_t size, gfp_t flags)
+{
+       return devm_kmalloc_array(dev, n, size, flags | __GFP_ZERO);
+}
 extern void devm_kfree(struct device *dev, void *p);
 
 void __iomem *devm_ioremap_resource(struct device *dev, struct resource *res);
@@ -698,7 +715,7 @@ struct device {
 
        struct dma_coherent_mem *dma_mem; /* internal for coherent mem
                                             override */
-#ifdef CONFIG_CMA
+#ifdef CONFIG_DMA_CMA
        struct cma *cma_area;           /* contiguous memory area for dma
                                           allocations */
 #endif