Hi Hari, [auto build test WARNING on staging/staging-testing] [also build test WARNING on v4.5-rc2 next-20160202] [if your patch is applied to the wrong git tree, please drop us a note to help improving the system] url: https://github.com/0day-ci/linux/commits/Gujulan-Elango-Hari-Prasath-H/staging-android-ion-use-the-manged-version-of-DMA-memory-allocation/20160203-132744 config: x86_64-randconfig-x009-201605 (attached as .config) reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All warnings (new ones prefixed by >>): drivers/staging/android/ion/ion_cma_heap.c: In function 'ion_cma_free': >> drivers/staging/android/ion/ion_cma_heap.c:94:17: warning: unused variable 'dev' [-Wunused-variable] struct device *dev = cma_heap->dev; ^ vim +/dev +94 drivers/staging/android/ion/ion_cma_heap.c 349c9e13 Benjamin Gaignard 2013-12-13 78 goto free_table; 349c9e13 Benjamin Gaignard 2013-12-13 79 /* keep this for memory release */ 349c9e13 Benjamin Gaignard 2013-12-13 80 buffer->priv_virt = info; 349c9e13 Benjamin Gaignard 2013-12-13 81 dev_dbg(dev, "Allocate buffer %p\n", buffer); 349c9e13 Benjamin Gaignard 2013-12-13 82 return 0; 349c9e13 Benjamin Gaignard 2013-12-13 83 349c9e13 Benjamin Gaignard 2013-12-13 84 free_table: 349c9e13 Benjamin Gaignard 2013-12-13 85 kfree(info->table); 349c9e13 Benjamin Gaignard 2013-12-13 86 err: 349c9e13 Benjamin Gaignard 2013-12-13 87 kfree(info); 349c9e13 Benjamin Gaignard 2013-12-13 88 return ION_CMA_ALLOCATE_FAILED; 349c9e13 Benjamin Gaignard 2013-12-13 89 } 349c9e13 Benjamin Gaignard 2013-12-13 90 349c9e13 Benjamin Gaignard 2013-12-13 91 static void ion_cma_free(struct ion_buffer *buffer) 349c9e13 Benjamin Gaignard 2013-12-13 92 { 349c9e13 Benjamin Gaignard 2013-12-13 93 struct ion_cma_heap *cma_heap = to_cma_heap(buffer->heap); 349c9e13 Benjamin Gaignard 2013-12-13 @94 struct device *dev = cma_heap->dev; 349c9e13 Benjamin Gaignard 2013-12-13 95 struct ion_cma_buffer_info *info = buffer->priv_virt; 349c9e13 Benjamin Gaignard 2013-12-13 96 349c9e13 Benjamin Gaignard 2013-12-13 97 /* release sg table */ 349c9e13 Benjamin Gaignard 2013-12-13 98 sg_free_table(info->table); 349c9e13 Benjamin Gaignard 2013-12-13 99 kfree(info->table); 349c9e13 Benjamin Gaignard 2013-12-13 100 kfree(info); 349c9e13 Benjamin Gaignard 2013-12-13 101 } 349c9e13 Benjamin Gaignard 2013-12-13 102 :::::: The code at line 94 was first introduced by commit :::::: 349c9e13855109df99c5205a4e8d53d9fa169490 gpu: ion: add CMA heap :::::: TO: Benjamin Gaignard <benjamin.gaignard@xxxxxxxxxx> :::::: CC: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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