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Message-ID: <202104290323.a4L4WTQF-lkp@intel.com>
Date:   Thu, 29 Apr 2021 03:37:03 +0800
From:   kernel test robot <lkp@...el.com>
To:     Shubhankar Kuranagatti <shubhankarvk@...il.com>,
        James.Bottomley@...senPartnership.com
Cc:     kbuild-all@...ts.01.org, deller@....de,
        linux-parisc@...r.kernel.org, linux-kernel@...r.kernel.org,
        sanjanasrinidhi1810@...il.com
Subject: Re: [PATCH] drivers: parisc: ccio-dma.c: Added tab insead of spaces

Hi Shubhankar,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on hp-parisc/for-next]
[also build test WARNING on v5.12 next-20210428]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Shubhankar-Kuranagatti/drivers-parisc-ccio-dma-c-Added-tab-insead-of-spaces/20210428-235316
base:   https://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git for-next
config: parisc-defconfig (attached as .config)
compiler: hppa-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/d69bc48f1b1d854da39ad6d1809d2a009d9d4de3
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Shubhankar-Kuranagatti/drivers-parisc-ccio-dma-c-Added-tab-insead-of-spaces/20210428-235316
        git checkout d69bc48f1b1d854da39ad6d1809d2a009d9d4de3
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=parisc 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

   drivers/parisc/ccio-dma.c: In function 'ccio_alloc_range':
   drivers/parisc/ccio-dma.c:378:4: error: 'else' without a previous 'if'
     378 |  } else if (pages_needed <= 16) {
         |    ^~~~
   drivers/parisc/ccio-dma.c:380:4: error: 'else' without a previous 'if'
     380 |  } else if (pages_needed <= 32) {
         |    ^~~~
   drivers/parisc/ccio-dma.c:386:4: error: 'else' without a previous 'if'
     386 |  } else {
         |    ^~~~
   drivers/parisc/ccio-dma.c:431:1: error: invalid storage class for function 'ccio_free_range'
     431 | ccio_free_range(struct ioc *ioc, dma_addr_t iova, unsigned long pages_mapped)
         | ^~~~~~~~~~~~~~~
>> drivers/parisc/ccio-dma.c:430:1: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     430 | static void
         | ^~~~~~
   drivers/parisc/ccio-dma.c:555:1: warning: 'inline' is not at beginning of declaration [-Wold-style-declaration]
     555 | static void CCIO_INLINE
         | ^~~~~~
   drivers/parisc/ccio-dma.c:556:1: error: invalid storage class for function 'ccio_io_pdir_entry'
     556 | ccio_io_pdir_entry(u64 *pdir_ptr, space_t sid, unsigned long vba,
         | ^~~~~~~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:627:1: error: invalid storage class for function 'ccio_clear_io_tlb'
     627 | ccio_clear_io_tlb(struct ioc *ioc, dma_addr_t iovp, size_t byte_cnt)
         | ^~~~~~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:660:1: error: invalid storage class for function 'ccio_mark_invalid'
     660 | ccio_mark_invalid(struct ioc *ioc, dma_addr_t iova, size_t byte_cnt)
         | ^~~~~~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:702:1: error: invalid storage class for function 'ccio_dma_supported'
     702 | ccio_dma_supported(struct device *dev, u64 mask)
         | ^~~~~~~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:724:1: error: invalid storage class for function 'ccio_map_single'
     724 | ccio_map_single(struct device *dev, void *addr, size_t size,
         | ^~~~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:786:1: error: invalid storage class for function 'ccio_map_page'
     786 | ccio_map_page(struct device *dev, struct page *page, unsigned long offset,
         | ^~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:803:1: error: invalid storage class for function 'ccio_unmap_page'
     803 | ccio_unmap_page(struct device *dev, dma_addr_t iova, size_t size,
         | ^~~~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:845:1: error: invalid storage class for function 'ccio_alloc'
     845 | ccio_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag,
         | ^~~~~~~~~~
   drivers/parisc/ccio-dma.c:879:1: error: invalid storage class for function 'ccio_free'
     879 | ccio_free(struct device *dev, size_t size, void *cpu_addr,
         | ^~~~~~~~~
   In file included from drivers/parisc/iommu-helpers.h:2,
                    from drivers/parisc/ccio-dma.c:896:
   include/linux/prefetch.h:55:20: error: invalid storage class for function 'prefetch_range'
      55 | static inline void prefetch_range(void *addr, size_t len)
         |                    ^~~~~~~~~~~~~~
   include/linux/prefetch.h:66:20: error: invalid storage class for function 'prefetch_page_address'
      66 | static inline void prefetch_page_address(struct page *page)
         |                    ^~~~~~~~~~~~~~~~~~~~~
   In file included from drivers/parisc/ccio-dma.c:896:
   drivers/parisc/iommu-helpers.h:15:1: error: invalid storage class for function 'iommu_fill_pdir'
      15 | iommu_fill_pdir(struct ioc *ioc, struct scatterlist *startsg, int nents,
         | ^~~~~~~~~~~~~~~
   drivers/parisc/iommu-helpers.h:101:1: error: invalid storage class for function 'iommu_coalesce_chunks'
     101 | iommu_coalesce_chunks(struct ioc *ioc, struct device *dev,
         | ^~~~~~~~~~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:908:1: error: invalid storage class for function 'ccio_map_sg'
     908 | ccio_map_sg(struct device *dev, struct scatterlist *sglist, int nents,
         | ^~~~~~~~~~~
   drivers/parisc/ccio-dma.c:987:1: error: invalid storage class for function 'ccio_unmap_sg'
     987 | ccio_unmap_sg(struct device *dev, struct scatterlist *sglist, int nents,
         | ^~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:1020:19: error: initializer element is not constant
    1020 |  .dma_supported = ccio_dma_supported,
         |                   ^~~~~~~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:1020:19: note: (near initialization for 'ccio_ops.dma_supported')
   drivers/parisc/ccio-dma.c:1021:12: error: initializer element is not constant
    1021 |  .alloc =  ccio_alloc,
         |            ^~~~~~~~~~
   drivers/parisc/ccio-dma.c:1021:12: note: (near initialization for 'ccio_ops.alloc')
   drivers/parisc/ccio-dma.c:1022:12: error: initializer element is not constant
    1022 |  .free =   ccio_free,
         |            ^~~~~~~~~
   drivers/parisc/ccio-dma.c:1022:12: note: (near initialization for 'ccio_ops.free')
   drivers/parisc/ccio-dma.c:1023:15: error: initializer element is not constant
    1023 |  .map_page =  ccio_map_page,
         |               ^~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:1023:15: note: (near initialization for 'ccio_ops.map_page')
   drivers/parisc/ccio-dma.c:1024:17: error: initializer element is not constant
    1024 |  .unmap_page =  ccio_unmap_page,
         |                 ^~~~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:1024:17: note: (near initialization for 'ccio_ops.unmap_page')
   drivers/parisc/ccio-dma.c:1025:13: error: initializer element is not constant
    1025 |  .map_sg =  ccio_map_sg,
         |             ^~~~~~~~~~~
   drivers/parisc/ccio-dma.c:1025:13: note: (near initialization for 'ccio_ops.map_sg')
   drivers/parisc/ccio-dma.c:1026:15: error: initializer element is not constant
    1026 |  .unmap_sg =  ccio_unmap_sg,
         |               ^~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:1026:15: note: (near initialization for 'ccio_ops.unmap_sg')
   drivers/parisc/ccio-dma.c:1033:12: error: invalid storage class for function 'ccio_proc_info'
    1033 | static int ccio_proc_info(struct seq_file *m, void *p)
         |            ^~~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:1099:12: error: invalid storage class for function 'ccio_proc_bitmap_info'
    1099 | static int ccio_proc_bitmap_info(struct seq_file *m, void *p)
         |            ^~~~~~~~~~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:1122:21: error: invalid storage class for function 'ccio_find_ioc'
    1122 | static struct ioc * ccio_find_ioc(int hw_path)
         |                     ^~~~~~~~~~~~~
   drivers/parisc/ccio-dma.c:1212:12: error: invalid storage class for function 'ccio_probe'
    1212 | static int ccio_probe(struct parisc_device *dev);
         |            ^~~~~~~~~~
   drivers/parisc/ccio-dma.c:1217:11: error: 'ccio_probe' undeclared (first use in this function); did you mean 'ccio_free'?
    1217 |  .probe = ccio_probe,
         |           ^~~~~~~~~~
         |           ccio_free
   drivers/parisc/ccio-dma.c:1217:11: note: each undeclared identifier is reported only once for each function it appears in
   drivers/parisc/ccio-dma.c:1229:1: error: invalid storage class for function 'ccio_ioc_init'
    1229 | ccio_ioc_init(struct ioc *ioc)


vim +430 drivers/parisc/ccio-dma.c

^1da177e4c3f41 Linus Torvalds  2005-04-16  415  
^1da177e4c3f41 Linus Torvalds  2005-04-16  416  #define CCIO_FREE_MAPPINGS(ioc, res_idx, mask, size) \
^1da177e4c3f41 Linus Torvalds  2005-04-16  417          u##size *res_ptr = (u##size *)&((ioc)->res_map[res_idx]); \
^1da177e4c3f41 Linus Torvalds  2005-04-16  418          BUG_ON((*res_ptr & mask) != mask); \
^1da177e4c3f41 Linus Torvalds  2005-04-16  419  	*res_ptr &= ~(mask);
^1da177e4c3f41 Linus Torvalds  2005-04-16  420  
^1da177e4c3f41 Linus Torvalds  2005-04-16  421  /**
^1da177e4c3f41 Linus Torvalds  2005-04-16  422   * ccio_free_range - Free pages from the ioc's resource map.
^1da177e4c3f41 Linus Torvalds  2005-04-16  423   * @ioc: The I/O Controller.
^1da177e4c3f41 Linus Torvalds  2005-04-16  424   * @iova: The I/O Virtual Address.
^1da177e4c3f41 Linus Torvalds  2005-04-16  425   * @pages_mapped: The requested number of pages to be freed from the
^1da177e4c3f41 Linus Torvalds  2005-04-16  426   * I/O Pdir.
^1da177e4c3f41 Linus Torvalds  2005-04-16  427   *
^1da177e4c3f41 Linus Torvalds  2005-04-16  428   * This function frees the resouces allocated for the iova.
^1da177e4c3f41 Linus Torvalds  2005-04-16  429   */
^1da177e4c3f41 Linus Torvalds  2005-04-16 @430  static void
^1da177e4c3f41 Linus Torvalds  2005-04-16  431  ccio_free_range(struct ioc *ioc, dma_addr_t iova, unsigned long pages_mapped)
^1da177e4c3f41 Linus Torvalds  2005-04-16  432  {
^1da177e4c3f41 Linus Torvalds  2005-04-16  433  	unsigned long iovp = CCIO_IOVP(iova);
^1da177e4c3f41 Linus Torvalds  2005-04-16  434  	unsigned int res_idx = PDIR_INDEX(iovp) >> 3;
^1da177e4c3f41 Linus Torvalds  2005-04-16  435  
^1da177e4c3f41 Linus Torvalds  2005-04-16  436  	BUG_ON(pages_mapped == 0);
^1da177e4c3f41 Linus Torvalds  2005-04-16  437  	BUG_ON((pages_mapped * IOVP_SIZE) > DMA_CHUNK_SIZE);
^1da177e4c3f41 Linus Torvalds  2005-04-16  438  	BUG_ON(pages_mapped > BITS_PER_LONG);
^1da177e4c3f41 Linus Torvalds  2005-04-16  439  
^1da177e4c3f41 Linus Torvalds  2005-04-16  440  	DBG_RES("%s():  res_idx: %d pages_mapped %d\n", 
a8043ecb17bd2e Harvey Harrison 2008-05-14  441  		__func__, res_idx, pages_mapped);
^1da177e4c3f41 Linus Torvalds  2005-04-16  442  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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