netdev - Re: [PATCH net-next 6/8] virtio_net: enable gso over UDP tunnel support.

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Message-ID: <202505221624.32GrJRU2-lkp@intel.com>
Date: Thu, 22 May 2025 16:38:59 +0800
From: kernel test robot <lkp@...el.com>
To: Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org
Cc: oe-kbuild-all@...ts.linux.dev,
	Willem de Bruijn <willemdebruijn.kernel@...il.com>,
	Jason Wang <jasowang@...hat.com>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	"Michael S. Tsirkin" <mst@...hat.com>,
	Xuan Zhuo <xuanzhuo@...ux.alibaba.com>,
	Eugenio Pérez <eperezma@...hat.com>
Subject: Re: [PATCH net-next 6/8] virtio_net: enable gso over UDP tunnel
 support.

Hi Paolo,

kernel test robot noticed the following build errors:

[auto build test ERROR on net-next/main]

url:    https://github.com/intel-lab-lkp/linux/commits/Paolo-Abeni/virtio-introduce-virtio_features_t/20250521-183700
base:   net-next/main
patch link:    https://lore.kernel.org/r/239bacdac9febd6f604f43fa8571aa2c44fd0f0b.1747822866.git.pabeni%40redhat.com
patch subject: [PATCH net-next 6/8] virtio_net: enable gso over UDP tunnel support.
config: i386-randconfig-011-20250522 (https://download.01.org/0day-ci/archive/20250522/202505221624.32GrJRU2-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250522/202505221624.32GrJRU2-lkp@intel.com/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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202505221624.32GrJRU2-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from <command-line>:
   In function '__virtio_test_bit',
       inlined from 'virtio_has_feature' at include/linux/virtio_config.h:204:9,
       inlined from 'virtnet_probe' at drivers/net/virtio_net.c:6805:7:
>> include/linux/compiler_types.h:557:45: error: call to '__compiletime_assert_792' declared with attribute error: BUILD_BUG_ON failed: fbit >= VIRTIO_FEATURES_MAX
     557 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |                                             ^
   include/linux/compiler_types.h:538:25: note: in definition of macro '__compiletime_assert'
     538 |                         prefix ## suffix();                             \
         |                         ^~~~~~
   include/linux/compiler_types.h:557:9: note: in expansion of macro '_compiletime_assert'
     557 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |         ^~~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
      39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
         |                                     ^~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:50:9: note: in expansion of macro 'BUILD_BUG_ON_MSG'
      50 |         BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
         |         ^~~~~~~~~~~~~~~~
   include/linux/virtio_config.h:152:17: note: in expansion of macro 'BUILD_BUG_ON'
     152 |                 BUILD_BUG_ON(fbit >= VIRTIO_FEATURES_MAX);
         |                 ^~~~~~~~~~~~


vim +/__compiletime_assert_792 +557 include/linux/compiler_types.h

eb5c2d4b45e3d2 Will Deacon 2020-07-21  543  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  544  #define _compiletime_assert(condition, msg, prefix, suffix) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21  545  	__compiletime_assert(condition, msg, prefix, suffix)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  546  
eb5c2d4b45e3d2 Will Deacon 2020-07-21  547  /**
eb5c2d4b45e3d2 Will Deacon 2020-07-21  548   * compiletime_assert - break build and emit msg if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  549   * @condition: a compile-time constant condition to check
eb5c2d4b45e3d2 Will Deacon 2020-07-21  550   * @msg:       a message to emit if condition is false
eb5c2d4b45e3d2 Will Deacon 2020-07-21  551   *
eb5c2d4b45e3d2 Will Deacon 2020-07-21  552   * In tradition of POSIX assert, this macro will break the build if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  553   * supplied condition is *false*, emitting the supplied error message if the
eb5c2d4b45e3d2 Will Deacon 2020-07-21  554   * compiler has support to do so.
eb5c2d4b45e3d2 Will Deacon 2020-07-21  555   */
eb5c2d4b45e3d2 Will Deacon 2020-07-21  556  #define compiletime_assert(condition, msg) \
eb5c2d4b45e3d2 Will Deacon 2020-07-21 @557  	_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
eb5c2d4b45e3d2 Will Deacon 2020-07-21  558  

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