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Date:   Wed, 14 Sep 2016 01:57:04 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Peng Sun <sironhide0null@...il.com>
Cc:     kbuild-all@...org, liodot@...il.com, charrer@...critech.com,
        gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
        Peng Sun <sironhide0null@...il.com>
Subject: Re: [PATCH 2/2] staging: slicoss: slicoss.c: fix different address
 space sparse warnings

Hi Peng,

[auto build test WARNING on staging/staging-testing]
[also build test WARNING on next-20160913]
[cannot apply to v4.8-rc6]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
[Suggest to use git(>=2.9.0) format-patch --base=<commit> (or --base=auto for convenience) to record what (public, well-known) commit your patch series was built on]
[Check https://git-scm.com/docs/git-format-patch for more information]

url:    https://github.com/0day-ci/linux/commits/Peng-Sun/staging-slicoss-fix-sparse-warnings/20160913-190805
config: i386-randconfig-h1-09132219 (attached as .config)
compiler: gcc-6 (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All warnings (new ones prefixed by >>):

        ^~~~~~~~~~~~~~~~~
   drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
   drivers/staging/slicoss/slicoss.c:1032:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats, rcv_tcp_bytes),
        ^~~~~~~~~~~~~~~~~
   drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
   drivers/staging/slicoss/slicoss.c:1036:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats, xmit_bytes),
        ^~~~~~~~~~~~~~~~~
   drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
   drivers/staging/slicoss/slicoss.c:1040:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats, xmit_unicasts),
        ^~~~~~~~~~~~~~~~~
   drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
   drivers/staging/slicoss/slicoss.c:1044:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats, rcv_bytes),
        ^~~~~~~~~~~~~~~~~
   drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
   drivers/staging/slicoss/slicoss.c:1048:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats, rcv_unicasts),
        ^~~~~~~~~~~~~~~~~
   drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
   drivers/staging/slicoss/slicoss.c:1052:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats, xmit_collisions),
        ^~~~~~~~~~~~~~~~~
   drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
   drivers/staging/slicoss/slicoss.c:1056:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats,
        ^~~~~~~~~~~~~~~~~
   drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
   drivers/staging/slicoss/slicoss.c:1061:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats, xmit_other_error),
        ^~~~~~~~~~~~~~~~~
   drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
   drivers/staging/slicoss/slicoss.c:1065:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats, rcv_other_error),
        ^~~~~~~~~~~~~~~~~
   drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slic.h:597:19: note: in definition of macro 'UPDATE_STATS_GB'
     (largestat) += ((newstat) - (oldstat));                          \
                      ^~~~~~~
   drivers/staging/slicoss/slicoss.c:1069:5: note: in expansion of macro 'IOMEM_GET_FIELD64'
        IOMEM_GET_FIELD64(stats, rcv_drops),
        ^~~~~~~~~~~~~~~~~
   In file included from include/linux/linkage.h:4:0,
                    from include/linux/kernel.h:6,
                    from drivers/staging/slicoss/slicoss.c:66:
   drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   include/linux/compiler.h:149:30: note: in definition of macro '__trace_if'
     if (__builtin_constant_p(!!(cond)) ? !!(cond) :   \
                                 ^~~~
>> drivers/staging/slicoss/slicoss.c:1072:3: note: in expansion of macro 'if'
      if (IOMEM_GET_FIELD64(stats, rcv_drops) > old->rcv_drops)
      ^~
   drivers/staging/slicoss/slicoss.c:1072:7: note: in expansion of macro 'IOMEM_GET_FIELD64'
      if (IOMEM_GET_FIELD64(stats, rcv_drops) > old->rcv_drops)
          ^~~~~~~~~~~~~~~~~
   drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   include/linux/compiler.h:149:42: note: in definition of macro '__trace_if'
     if (__builtin_constant_p(!!(cond)) ? !!(cond) :   \
                                             ^~~~
>> drivers/staging/slicoss/slicoss.c:1072:3: note: in expansion of macro 'if'
      if (IOMEM_GET_FIELD64(stats, rcv_drops) > old->rcv_drops)
      ^~
   drivers/staging/slicoss/slicoss.c:1072:7: note: in expansion of macro 'IOMEM_GET_FIELD64'
      if (IOMEM_GET_FIELD64(stats, rcv_drops) > old->rcv_drops)
          ^~~~~~~~~~~~~~~~~
   drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   include/linux/compiler.h:160:16: note: in definition of macro '__trace_if'
      ______r = !!(cond);     \
                   ^~~~
>> drivers/staging/slicoss/slicoss.c:1072:3: note: in expansion of macro 'if'
      if (IOMEM_GET_FIELD64(stats, rcv_drops) > old->rcv_drops)
      ^~
   drivers/staging/slicoss/slicoss.c:1072:7: note: in expansion of macro 'IOMEM_GET_FIELD64'
      if (IOMEM_GET_FIELD64(stats, rcv_drops) > old->rcv_drops)
          ^~~~~~~~~~~~~~~~~
   In file included from drivers/staging/slicoss/slicoss.c:97:0:
   drivers/staging/slicoss/slic.h:575:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement]
     u64 val = ((u64)ioread8(_base + 7)) << 56;   \
     ^
   drivers/staging/slicoss/slicoss.c:1074:7: note: in expansion of macro 'IOMEM_GET_FIELD64'
         (IOMEM_GET_FIELD64(stats, rcv_drops) -
          ^~~~~~~~~~~~~~~~~

vim +/if +1072 drivers/staging/slicoss/slicoss.c

  1056					IOMEM_GET_FIELD64(stats,
  1057							  xmit_excess_collisions),
  1058					old->xmit_excess_collisions);
  1059	
  1060			UPDATE_STATS_GB(stst->iface.xmt_errors,
  1061					IOMEM_GET_FIELD64(stats, xmit_other_error),
  1062					old->xmit_other_error);
  1063	
  1064			UPDATE_STATS_GB(stst->iface.rcv_errors,
  1065					IOMEM_GET_FIELD64(stats, rcv_other_error),
  1066					old->rcv_other_error);
  1067	
  1068			UPDATE_STATS_GB(stst->iface.rcv_discards,
  1069					IOMEM_GET_FIELD64(stats, rcv_drops),
  1070					old->rcv_drops);
  1071	
> 1072			if (IOMEM_GET_FIELD64(stats, rcv_drops) > old->rcv_drops)
  1073				adapter->rcv_drops +=
  1074						(IOMEM_GET_FIELD64(stats, rcv_drops) -
  1075						       old->rcv_drops);
  1076			memcpy_fromio(old, stats, sizeof(*stats));
  1077			break;
  1078		}
  1079		case SLIC_UPR_RLSR:
  1080			slic_link_upr_complete(adapter, isr);

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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