8:10 a.m.
Hi Richard,
FYI, the error/warning still remains.
tree: https://github.com/Freescale/linux-fslc 5.4-2.3.x-imx
head: 0b75fb32ce4bed3f44bd0e2e78c4f08521fac3c8
commit: d39a68543c7002b7abd7f9df6d8f26fedda72ea5 [8338/18037] MGS-5565-1 staging: android:
ion: Flush outer cache after zero CMA allocated memory
config: i386-allyesconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
#
https://github.com/Freescale/linux-fslc/commit/d39a68543c7002b7abd7f9df6d...
git remote add freescale-fslc https://github.com/Freescale/linux-fslc
git fetch --no-tags freescale-fslc 5.4-2.3.x-imx
git checkout d39a68543c7002b7abd7f9df6d8f26fedda72ea5
# save the attached .config to linux build tree
make W=1 ARCH=i386
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
All errors (new ones prefixed by >>):
drivers/staging/android/ion/ion_cma_heap.c: In function 'ion_cma_allocate':
> drivers/staging/android/ion/ion_cma_heap.c:65:4: error: implicit
declaration of function '__flush_dcache_area'; did you mean
'flush_dcache_page'? [-Werror=implicit-function-declaration]
65 |
__flush_dcache_area(vaddr,PAGE_SIZE);
| ^~~~~~~~~~~~~~~~~~~
| flush_dcache_page
cc1: some warnings being treated as errors
Kconfig warnings: (for reference only)
WARNING: unmet direct dependencies detected for IMX_IRQSTEER
Depends on ARCH_MXC || COMPILE_TEST
Selected by
- DRM_IMX_DCSS && HAS_IOMEM
vim +65 drivers/staging/android/ion/ion_cma_heap.c
57
58 while (nr_clear_pages > 0) {
59 void *vaddr = kmap_atomic(page);
60
61 memset(vaddr, 0, PAGE_SIZE);
62 #ifdef CONFIG_ARM
63 __cpuc_flush_dcache_area(vaddr,PAGE_SIZE);
64 #else
65 __flush_dcache_area(vaddr,PAGE_SIZE);
66 #endif
67 kunmap_atomic(vaddr);
68 page++;
69 nr_clear_pages--;
70 }
71 #ifdef CONFIG_ARM
72 outer_flush_range(base, end);
73 #endif
74 } else {
75 void *ptr = page_address(pages);
76 memset(ptr, 0, size);
77 #ifdef CONFIG_ARM
78 __cpuc_flush_dcache_area(ptr,size);
79 outer_flush_range(__pa(ptr), __pa(ptr) + size);
80 #else
81 __flush_dcache_area(ptr,size);
82 #endif
83 }
84
85 table = kmalloc(sizeof(*table), GFP_KERNEL);
86 if (!table)
87 goto err;
88
89 ret = sg_alloc_table(table, 1, GFP_KERNEL);
90 if (ret)
91 goto free_mem;
92
93 sg_set_page(table->sgl, pages, size, 0);
94
95 buffer->priv_virt = pages;
96 buffer->sg_table = table;
97 return 0;
98
99 free_mem:
100 kfree(table);
101 err:
102 cma_release(cma_heap->cma, pages, nr_pages);
103 return -ENOMEM;
104 }
105
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org