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X-CSE-ConnectionGUID: WlPaeBcpTWqAS19Tob0ifQ== X-CSE-MsgGUID: VXpbPKjISVSoNxagmoH4uA== X-IronPort-AV: E=McAfee;i="6800,10657,11927"; a="102581514" X-IronPort-AV: E=Sophos;i="6.27,143,1787036400"; d="scan'208";a="102581514" Received: from orviesa003.jf.intel.com ([10.64.159.143]) by fmvoesa105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Oct 2026 09:54:15 -0700 X-CSE-ConnectionGUID: KQxtLMKrQ1SarYfk46W/LA== X-CSE-MsgGUID: prTv7prQRh+qlOgHRRFSOQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,143,1787036400"; d="scan'208";a="280440303" Received: from igk-lkp-server01.igk.intel.com (HELO d0de6c2a75a7) ([10.211.93.152]) by orviesa003.jf.intel.com with ESMTP; 06 Oct 2026 09:54:13 -0700 Received: from kbuild by d0de6c2a75a7 with local (Exim 4.98.2) (envelope-from ) id 1xE8Qd-000000001WV-1InZ; Tue, 06 Oct 2026 16:54:11 +0000 Date: Tue, 06 Oct 2026 18:53:55 +0200 From: kernel test robot To: Kumar Kartikeya Dwivedi Cc: oe-kbuild-all@lists.linux.dev Subject: [kkdwivedi:xdp-tcp 28/41] include/linux/compiler_types.h:702:38: error: call to '__compiletime_assert_858' declared with attribute error: min(len, pfrag->size - pfrag->offset) signedness error Message-ID: <202610061807.IZHYfydD-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: oe-kbuild-all@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: tree: https://github.com/kkdwivedi/linux xdp-tcp head: 98ba2e45e6a3e93f19f6579031bd9e6995b9ca4c commit: b7c41d3f731d7d54b9989b4c6f765c26635e7e50 [28/41] tcp: Put the payload of XDP responses in page fragments config: arm-randconfig-r2200-20261006 (https://download.01.org/0day-ci/archive/20261006/202610061807.IZHYfydD-lkp@intel.com/config) compiler: arm-linux-gnueabi-gcc (GCC) 8.5.0 smatch: v0.5.0-9187-g5189e3fb reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261006/202610061807.IZHYfydD-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 | Closes: https://lore.kernel.org/oe-kbuild-all/202610061807.IZHYfydD-lkp@intel.com/ All errors (new ones prefixed by >>): net/ipv4/tcp_xdp.c: In function 'bpf_xdp_tcp_consume': net/ipv4/tcp_xdp.c:262:11: warning: assignment to 'sk_buff_data_t' {aka 'unsigned char *'} from 'unsigned int' makes pointer from integer without a cast [-Wint-conversion] skb->end = offsetof(typeof(fake), shinfo) - offsetof(typeof(fake), hdr); ^ net/ipv4/tcp_xdp.c:263:12: warning: assignment to 'sk_buff_data_t' {aka 'unsigned char *'} from 'u32' {aka 'unsigned int'} makes pointer from integer without a cast [-Wint-conversion] skb->tail = hlen; ^ In file included from : In function 'xdp_tcp_alloc_segment', inlined from 'bpf_xdp_tcp_send' at net/ipv4/tcp_xdp.c:416:8: >> include/linux/compiler_types.h:702:38: error: call to '__compiletime_assert_858' declared with attribute error: min(len, pfrag->size - pfrag->offset) signedness error _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ^ include/linux/compiler_types.h:683:4: note: in definition of macro '__compiletime_assert' prefix ## suffix(); \ ^~~~~~ include/linux/compiler_types.h:702:2: note: in expansion of macro '_compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ^~~~~~~~~~~~~~~~~~~ include/linux/build_bug.h:40:37: note: in expansion of macro 'compiletime_assert' #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) ^~~~~~~~~~~~~~~~~~ include/linux/minmax.h:93:2: note: in expansion of macro 'BUILD_BUG_ON_MSG' BUILD_BUG_ON_MSG(!__types_ok(ux, uy), \ ^~~~~~~~~~~~~~~~ include/linux/minmax.h:98:2: note: in expansion of macro '__careful_cmp_once' __careful_cmp_once(op, x, y, __UNIQUE_ID(x_), __UNIQUE_ID(y_)) ^~~~~~~~~~~~~~~~~~ include/linux/minmax.h:105:19: note: in expansion of macro '__careful_cmp' #define min(x, y) __careful_cmp(min, x, y) ^~~~~~~~~~~~~ net/ipv4/tcp_xdp.c:354:10: note: in expansion of macro 'min' copy = min(len, pfrag->size - pfrag->offset); ^~~ vim +/__compiletime_assert_858 +702 include/linux/compiler_types.h eb5c2d4b45e3d2 Will Deacon 2020-07-21 688 eb5c2d4b45e3d2 Will Deacon 2020-07-21 689 #define _compiletime_assert(condition, msg, prefix, suffix) \ eb5c2d4b45e3d2 Will Deacon 2020-07-21 690 __compiletime_assert(condition, msg, prefix, suffix) eb5c2d4b45e3d2 Will Deacon 2020-07-21 691 eb5c2d4b45e3d2 Will Deacon 2020-07-21 692 /** eb5c2d4b45e3d2 Will Deacon 2020-07-21 693 * compiletime_assert - break build and emit msg if condition is false eb5c2d4b45e3d2 Will Deacon 2020-07-21 694 * @condition: a compile-time constant condition to check eb5c2d4b45e3d2 Will Deacon 2020-07-21 695 * @msg: a message to emit if condition is false eb5c2d4b45e3d2 Will Deacon 2020-07-21 696 * eb5c2d4b45e3d2 Will Deacon 2020-07-21 697 * In tradition of POSIX assert, this macro will break the build if the eb5c2d4b45e3d2 Will Deacon 2020-07-21 698 * supplied condition is *false*, emitting the supplied error message if the eb5c2d4b45e3d2 Will Deacon 2020-07-21 699 * compiler has support to do so. eb5c2d4b45e3d2 Will Deacon 2020-07-21 700 */ eb5c2d4b45e3d2 Will Deacon 2020-07-21 701 #define compiletime_assert(condition, msg) \ eb5c2d4b45e3d2 Will Deacon 2020-07-21 @702 _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) eb5c2d4b45e3d2 Will Deacon 2020-07-21 703 :::::: The code at line 702 was first introduced by commit :::::: eb5c2d4b45e3d2d5d052ea6b8f1463976b1020d5 compiler.h: Move compiletime_assert() macros into compiler_types.h :::::: TO: Will Deacon :::::: CC: Will Deacon -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki