From: Colin Cross Date: Sat, 14 Dec 2013 03:26:28 +0000 (-0800) Subject: ion: fix sparse warnings X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=f63958d80c07c04db48812d97ff7450517d80ffa;p=linux-beck.git ion: fix sparse warnings Fix sparse warnings in ion. Signed-off-by: Colin Cross Signed-off-by: John Stultz Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c index 45127f5cd2f0..559e4ee6f7e5 100644 --- a/drivers/staging/android/ion/ion.c +++ b/drivers/staging/android/ion/ion.c @@ -669,7 +669,7 @@ static int ion_debug_client_show(struct seq_file *s, void *unused) struct ion_client *client = s->private; struct rb_node *n; size_t sizes[ION_NUM_HEAP_IDS] = {0}; - const char *names[ION_NUM_HEAP_IDS] = {0}; + const char *names[ION_NUM_HEAP_IDS] = {NULL}; int i; mutex_lock(&client->lock); @@ -887,7 +887,7 @@ static void ion_buffer_sync_for_device(struct ion_buffer *buffer, mutex_unlock(&buffer->lock); } -int ion_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf) +static int ion_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf) { struct ion_buffer *buffer = vma->vm_private_data; unsigned long pfn; @@ -939,7 +939,7 @@ static void ion_vm_close(struct vm_area_struct *vma) mutex_unlock(&buffer->lock); } -struct vm_operations_struct ion_vma_ops = { +static struct vm_operations_struct ion_vma_ops = { .open = ion_vm_open, .close = ion_vm_close, .fault = ion_vm_fault, @@ -1030,7 +1030,7 @@ static void ion_dma_buf_end_cpu_access(struct dma_buf *dmabuf, size_t start, mutex_unlock(&buffer->lock); } -struct dma_buf_ops dma_buf_ops = { +static struct dma_buf_ops dma_buf_ops = { .map_dma_buf = ion_map_dma_buf, .unmap_dma_buf = ion_unmap_dma_buf, .mmap = ion_mmap, diff --git a/drivers/staging/android/ion/ion_carveout_heap.c b/drivers/staging/android/ion/ion_carveout_heap.c index b0b08c30f6f0..9bf20a371f1a 100644 --- a/drivers/staging/android/ion/ion_carveout_heap.c +++ b/drivers/staging/android/ion/ion_carveout_heap.c @@ -85,8 +85,8 @@ static void ion_carveout_heap_free(struct ion_buffer *buffer) buffer->priv_phys = ION_CARVEOUT_ALLOCATE_FAIL; } -struct sg_table *ion_carveout_heap_map_dma(struct ion_heap *heap, - struct ion_buffer *buffer) +static struct sg_table *ion_carveout_heap_map_dma(struct ion_heap *heap, + struct ion_buffer *buffer) { struct sg_table *table; int ret; @@ -104,8 +104,8 @@ struct sg_table *ion_carveout_heap_map_dma(struct ion_heap *heap, return table; } -void ion_carveout_heap_unmap_dma(struct ion_heap *heap, - struct ion_buffer *buffer) +static void ion_carveout_heap_unmap_dma(struct ion_heap *heap, + struct ion_buffer *buffer) { sg_free_table(buffer->sg_table); } diff --git a/drivers/staging/android/ion/ion_chunk_heap.c b/drivers/staging/android/ion/ion_chunk_heap.c index 34d1d18d4fc4..46e8a3bf7a2f 100644 --- a/drivers/staging/android/ion/ion_chunk_heap.c +++ b/drivers/staging/android/ion/ion_chunk_heap.c @@ -115,14 +115,14 @@ static void ion_chunk_heap_free(struct ion_buffer *buffer) kfree(table); } -struct sg_table *ion_chunk_heap_map_dma(struct ion_heap *heap, - struct ion_buffer *buffer) +static struct sg_table *ion_chunk_heap_map_dma(struct ion_heap *heap, + struct ion_buffer *buffer) { return buffer->priv_virt; } -void ion_chunk_heap_unmap_dma(struct ion_heap *heap, - struct ion_buffer *buffer) +static void ion_chunk_heap_unmap_dma(struct ion_heap *heap, + struct ion_buffer *buffer) { return; } diff --git a/drivers/staging/android/ion/ion_cma_heap.c b/drivers/staging/android/ion/ion_cma_heap.c index 1e308a092fe6..3dcf9b47d5d5 100644 --- a/drivers/staging/android/ion/ion_cma_heap.c +++ b/drivers/staging/android/ion/ion_cma_heap.c @@ -44,8 +44,8 @@ struct ion_cma_buffer_info { * This function could be replaced by dma_common_get_sgtable * as soon as it will avalaible. */ -int ion_cma_get_sgtable(struct device *dev, struct sg_table *sgt, - void *cpu_addr, dma_addr_t handle, size_t size) +static int ion_cma_get_sgtable(struct device *dev, struct sg_table *sgt, + void *cpu_addr, dma_addr_t handle, size_t size) { struct page *page = virt_to_page(cpu_addr); int ret; @@ -137,16 +137,16 @@ static int ion_cma_phys(struct ion_heap *heap, struct ion_buffer *buffer, return 0; } -struct sg_table *ion_cma_heap_map_dma(struct ion_heap *heap, - struct ion_buffer *buffer) +static struct sg_table *ion_cma_heap_map_dma(struct ion_heap *heap, + struct ion_buffer *buffer) { struct ion_cma_buffer_info *info = buffer->priv_virt; return info->table; } -void ion_cma_heap_unmap_dma(struct ion_heap *heap, - struct ion_buffer *buffer) +static void ion_cma_heap_unmap_dma(struct ion_heap *heap, + struct ion_buffer *buffer) { return; } @@ -162,7 +162,8 @@ static int ion_cma_mmap(struct ion_heap *mapper, struct ion_buffer *buffer, buffer->size); } -void *ion_cma_map_kernel(struct ion_heap *heap, struct ion_buffer *buffer) +static void *ion_cma_map_kernel(struct ion_heap *heap, + struct ion_buffer *buffer) { struct ion_cma_buffer_info *info = buffer->priv_virt; /* kernel memory mapping has been done at allocation time */ diff --git a/drivers/staging/android/ion/ion_heap.c b/drivers/staging/android/ion/ion_heap.c index 8054611e874a..c3a213b6dcda 100644 --- a/drivers/staging/android/ion/ion_heap.c +++ b/drivers/staging/android/ion/ion_heap.c @@ -38,7 +38,7 @@ void *ion_heap_map_kernel(struct ion_heap *heap, struct page **tmp = pages; if (!pages) - return 0; + return NULL; if (buffer->flags & ION_FLAG_CACHED) pgprot = PAGE_KERNEL; @@ -193,7 +193,7 @@ size_t ion_heap_freelist_drain(struct ion_heap *heap, size_t size) return total_drained; } -int ion_heap_deferred_free(void *data) +static int ion_heap_deferred_free(void *data) { struct ion_heap *heap = data; diff --git a/drivers/staging/android/ion/ion_page_pool.c b/drivers/staging/android/ion/ion_page_pool.c index 0ad026359cf8..a1c51a839d66 100644 --- a/drivers/staging/android/ion/ion_page_pool.c +++ b/drivers/staging/android/ion/ion_page_pool.c @@ -134,7 +134,7 @@ int ion_page_pool_shrink(struct ion_page_pool *pool, gfp_t gfp_mask, int i; bool high; - high = gfp_mask & __GFP_HIGHMEM; + high = !!(gfp_mask & __GFP_HIGHMEM); if (nr_to_scan == 0) return ion_page_pool_total(pool, high); diff --git a/drivers/staging/android/ion/ion_system_heap.c b/drivers/staging/android/ion/ion_system_heap.c index 841511df0f1c..301d019a3270 100644 --- a/drivers/staging/android/ion/ion_system_heap.c +++ b/drivers/staging/android/ion/ion_system_heap.c @@ -26,11 +26,9 @@ #include "ion.h" #include "ion_priv.h" -static unsigned int high_order_gfp_flags = (GFP_HIGHUSER | __GFP_ZERO | - __GFP_NOWARN | __GFP_NORETRY) & - ~__GFP_WAIT; -static unsigned int low_order_gfp_flags = (GFP_HIGHUSER | __GFP_ZERO | - __GFP_NOWARN); +static gfp_t high_order_gfp_flags = (GFP_HIGHUSER | __GFP_ZERO | __GFP_NOWARN | + __GFP_NORETRY) & ~__GFP_WAIT; +static gfp_t low_order_gfp_flags = (GFP_HIGHUSER | __GFP_ZERO | __GFP_NOWARN); static const unsigned int orders[] = {8, 4, 0}; static const int num_orders = ARRAY_SIZE(orders); static int order_to_index(unsigned int order) @@ -76,12 +74,12 @@ static struct page *alloc_buffer_page(struct ion_system_heap *heap, gfp_flags = high_order_gfp_flags; page = alloc_pages(gfp_flags, order); if (!page) - return 0; + return NULL; ion_pages_sync_for_device(NULL, page, PAGE_SIZE << order, DMA_BIDIRECTIONAL); } if (!page) - return 0; + return NULL; return page; } @@ -187,7 +185,7 @@ err: return -ENOMEM; } -void ion_system_heap_free(struct ion_buffer *buffer) +static void ion_system_heap_free(struct ion_buffer *buffer) { struct ion_heap *heap = buffer->heap; struct ion_system_heap *sys_heap = container_of(heap, @@ -211,14 +209,14 @@ void ion_system_heap_free(struct ion_buffer *buffer) kfree(table); } -struct sg_table *ion_system_heap_map_dma(struct ion_heap *heap, - struct ion_buffer *buffer) +static struct sg_table *ion_system_heap_map_dma(struct ion_heap *heap, + struct ion_buffer *buffer) { return buffer->priv_virt; } -void ion_system_heap_unmap_dma(struct ion_heap *heap, - struct ion_buffer *buffer) +static void ion_system_heap_unmap_dma(struct ion_heap *heap, + struct ion_buffer *buffer) { return; } @@ -403,7 +401,7 @@ out: return ret; } -void ion_system_contig_heap_free(struct ion_buffer *buffer) +static void ion_system_contig_heap_free(struct ion_buffer *buffer) { struct sg_table *table = buffer->priv_virt; struct page *page = sg_page(table->sgl); @@ -427,14 +425,14 @@ static int ion_system_contig_heap_phys(struct ion_heap *heap, return 0; } -struct sg_table *ion_system_contig_heap_map_dma(struct ion_heap *heap, +static struct sg_table *ion_system_contig_heap_map_dma(struct ion_heap *heap, struct ion_buffer *buffer) { return buffer->priv_virt; } -void ion_system_contig_heap_unmap_dma(struct ion_heap *heap, - struct ion_buffer *buffer) +static void ion_system_contig_heap_unmap_dma(struct ion_heap *heap, + struct ion_buffer *buffer) { }