Re: [PATCH v1 5/5] misc: fastrpc: Add support to allocate shared context bank

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Hi Ekansh,

kernel test robot noticed the following build warnings:

[auto build test WARNING on char-misc/char-misc-testing]
[also build test WARNING on char-misc/char-misc-next char-misc/char-misc-linus linus/master v6.5 next-20230831]
[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#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Ekansh-Gupta/misc-fastrpc-Add-fastrpc-multimode-invoke-request-support/20230901-002929
base:   char-misc/char-misc-testing
patch link:    https://lore.kernel.org/r/1693499292-19083-6-git-send-email-quic_ekangupt%40quicinc.com
patch subject: [PATCH v1 5/5] misc: fastrpc: Add support to allocate shared context bank
config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20230901/202309011446.SVM4HbHv-lkp@xxxxxxxxx/config)
compiler: m68k-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230901/202309011446.SVM4HbHv-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202309011446.SVM4HbHv-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

   drivers/misc/fastrpc.c: In function 'fastrpc_context_alloc':
   drivers/misc/fastrpc.c:674:29: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
     674 |                 ctx->args = (struct fastrpc_invoke_args *)invoke->inv.args;
         |                             ^
   drivers/misc/fastrpc.c: In function 'fastrpc_init_create_static_process':
   drivers/misc/fastrpc.c:1540:26: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
    1540 |         ioctl.inv.args = (__u64)args;
         |                          ^
   drivers/misc/fastrpc.c: In function 'fastrpc_init_create_process':
   drivers/misc/fastrpc.c:1677:26: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
    1677 |         ioctl.inv.args = (__u64)args;
         |                          ^
   drivers/misc/fastrpc.c: In function 'fastrpc_release_current_dsp_process':
   drivers/misc/fastrpc.c:1730:26: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
    1730 |         ioctl.inv.args = (__u64)args;
         |                          ^
   drivers/misc/fastrpc.c: In function 'fastrpc_device_release':
   drivers/misc/fastrpc.c:1739:42: warning: unused variable 'n' [-Wunused-variable]
    1739 |         struct fastrpc_invoke_ctx *ctx, *n;
         |                                          ^
   drivers/misc/fastrpc.c:1739:36: warning: unused variable 'ctx' [-Wunused-variable]
    1739 |         struct fastrpc_invoke_ctx *ctx, *n;
         |                                    ^~~
   drivers/misc/fastrpc.c: In function 'fastrpc_init_attach':
   drivers/misc/fastrpc.c:1871:26: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
    1871 |         ioctl.inv.args = (__u64)args;
         |                          ^
   drivers/misc/fastrpc.c: In function 'fastrpc_invoke':
   drivers/misc/fastrpc.c:1902:26: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
    1902 |         ioctl.inv.args = (__u64)args;
         |                          ^
   drivers/misc/fastrpc.c: In function 'fastrpc_internal_control':
   drivers/misc/fastrpc.c:1920:14: error: 'FASTRPC_CONTROL_SMMU' undeclared (first use in this function); did you mean 'FASTRPC_IOCTL_MMAP'?
    1920 |         case FASTRPC_CONTROL_SMMU:
         |              ^~~~~~~~~~~~~~~~~~~~
         |              FASTRPC_IOCTL_MMAP
   drivers/misc/fastrpc.c:1920:14: note: each undeclared identifier is reported only once for each function it appears in
   drivers/misc/fastrpc.c:1920:9: error: case label not within a switch statement
    1920 |         case FASTRPC_CONTROL_SMMU:
         |         ^~~~
   drivers/misc/fastrpc.c:1922:17: error: break statement not within loop or switch
    1922 |                 break;
         |                 ^~~~~
   drivers/misc/fastrpc.c:1923:9: error: 'default' label not within a switch statement
    1923 |         default:
         |         ^~~~~~~
   drivers/misc/fastrpc.c:1925:17: error: break statement not within loop or switch
    1925 |                 break;
         |                 ^~~~~
>> drivers/misc/fastrpc.c:1913:13: warning: variable 'err' set but not used [-Wunused-but-set-variable]
    1913 |         int err = 0;
         |             ^~~
   drivers/misc/fastrpc.c: At top level:
   drivers/misc/fastrpc.c:1927:9: error: expected identifier or '(' before 'return'
    1927 |         return err;
         |         ^~~~~~
   drivers/misc/fastrpc.c:1928:1: error: expected identifier or '(' before '}' token
    1928 | }
         | ^
   drivers/misc/fastrpc.c: In function 'fastrpc_multimode_invoke':
   drivers/misc/fastrpc.c:1964:33: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
    1964 |                 einv.inv.args = (__u64)args;
         |                                 ^
   drivers/misc/fastrpc.c: In function 'fastrpc_get_info_from_dsp':
   drivers/misc/fastrpc.c:2000:26: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
    2000 |         ioctl.inv.args = (__u64)args;
         |                          ^
   drivers/misc/fastrpc.c: In function 'fastrpc_req_munmap_impl':
   drivers/misc/fastrpc.c:2103:26: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
    2103 |         ioctl.inv.args = (__u64)args;
         |                          ^
   drivers/misc/fastrpc.c: In function 'fastrpc_req_mmap':
   drivers/misc/fastrpc.c:2201:26: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
    2201 |         ioctl.inv.args = (__u64)args;
         |                          ^
   drivers/misc/fastrpc.c: In function 'fastrpc_req_mem_unmap_impl':
   drivers/misc/fastrpc.c:2282:26: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
    2282 |         ioctl.inv.args = (__u64)args;
         |                          ^
   drivers/misc/fastrpc.c: In function 'fastrpc_req_mem_map':
   drivers/misc/fastrpc.c:2351:26: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
    2351 |         ioctl.inv.args = (__u64)args;
         |                          ^
   drivers/misc/fastrpc.c: In function 'fastrpc_internal_control':
   drivers/misc/fastrpc.c:1926:9: error: control reaches end of non-void function [-Werror=return-type]
    1926 |         }
         |         ^
   cc1: some warnings being treated as errors


vim +/err +1913 drivers/misc/fastrpc.c

  1909	
  1910	static int fastrpc_internal_control(struct fastrpc_user *fl,
  1911						struct fastrpc_internal_control *cp)
  1912	{
> 1913		int err = 0;
  1914	
  1915		if (!fl)
  1916			return -EBADF;
  1917		if (!cp)
  1918			return -EINVAL;
  1919	
  1920		case FASTRPC_CONTROL_SMMU:
  1921			fl->sharedcb = cp->smmu.sharedcb;
> 1922			break;
  1923		default:
  1924			err = -EBADRQC;
  1925			break;
  1926		}
  1927		return err;
  1928	}
  1929	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki



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