On 09/23/2016 06:13 AM, Baoyou Xie wrote:
We get 4 warnings when building kernel with W=1: drivers/staging/android/ion/ion_carveout_heap.c:36:17: warning: no previous prototype for 'ion_carveout_allocate' [-Wmissing-prototypes] drivers/staging/android/ion/ion_carveout_heap.c:50:6: warning: no previous prototype for 'ion_carveout_free' [-Wmissing-prototypes] drivers/staging/android/ion/ion_of.c:28:5: warning: no previous prototype for 'ion_parse_dt_heap_common' [-Wmissing-prototypes] drivers/staging/android/ion/ion_of.c:54:5: warning: no previous prototype for 'ion_setup_heap_common' [-Wmissing-prototypes] In fact, these functions are only used in the file in which they are declared and don't need a declaration, but can be made static. so this patch marks these functions with 'static'.
Acked-by: Laura Abbott <labbott@xxxxxxxxxx>
Signed-off-by: Baoyou Xie <baoyou.xie@xxxxxxxxxx> --- drivers/staging/android/ion/ion_carveout_heap.c | 10 +++++----- drivers/staging/android/ion/ion_of.c | 12 ++++++------ 2 files changed, 11 insertions(+), 11 deletions(-) diff --git a/drivers/staging/android/ion/ion_carveout_heap.c b/drivers/staging/android/ion/ion_carveout_heap.c index c4f0795..a8ea973 100644 --- a/drivers/staging/android/ion/ion_carveout_heap.c +++ b/drivers/staging/android/ion/ion_carveout_heap.c @@ -33,9 +33,9 @@ struct ion_carveout_heap { ion_phys_addr_t base; }; -ion_phys_addr_t ion_carveout_allocate(struct ion_heap *heap, - unsigned long size, - unsigned long align) +static ion_phys_addr_t ion_carveout_allocate(struct ion_heap *heap, + unsigned long size, + unsigned long align) { struct ion_carveout_heap *carveout_heap = container_of(heap, struct ion_carveout_heap, heap); @@ -47,8 +47,8 @@ ion_phys_addr_t ion_carveout_allocate(struct ion_heap *heap, return offset; } -void ion_carveout_free(struct ion_heap *heap, ion_phys_addr_t addr, - unsigned long size) +static void ion_carveout_free(struct ion_heap *heap, ion_phys_addr_t addr, + unsigned long size) { struct ion_carveout_heap *carveout_heap = container_of(heap, struct ion_carveout_heap, heap); diff --git a/drivers/staging/android/ion/ion_of.c b/drivers/staging/android/ion/ion_of.c index de0899a..3486909 100644 --- a/drivers/staging/android/ion/ion_of.c +++ b/drivers/staging/android/ion/ion_of.c @@ -25,9 +25,9 @@ #include "ion_priv.h" #include "ion_of.h" -int ion_parse_dt_heap_common(struct device_node *heap_node, - struct ion_platform_heap *heap, - struct ion_of_heap *compatible) +static int ion_parse_dt_heap_common(struct device_node *heap_node, + struct ion_platform_heap *heap, + struct ion_of_heap *compatible) { int i; @@ -51,9 +51,9 @@ int ion_parse_dt_heap_common(struct device_node *heap_node, return 0; } -int ion_setup_heap_common(struct platform_device *parent, - struct device_node *heap_node, - struct ion_platform_heap *heap) +static int ion_setup_heap_common(struct platform_device *parent, + struct device_node *heap_node, + struct ion_platform_heap *heap) { int ret = 0;
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