From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1B768C04A68 for ; Thu, 28 Jul 2022 00:05:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=BxKaR4lWazAZuMBXSbTmTO5AlxheJy0sDIHUfkT6VZQ=; b=s67Bqf62YIRwx/ ABhb5E8UMj4xKaEQhVPKM04eIsj1SskHHlitakm9LsoPDSD7Yqve1R9mMQIv/7nyJd+vQLwxK6a23 PLGaoBa4ZMeDTJudQVYakisf0BNPhLUA8lvPEkOFC2EeSdnWy2K0j3L6KwEPVVSEsdZy+OrixFgXL +JS/gtw/fn8+4npwIWpP+ieEXTqxVAn3wjUaZSUCo/UuZZ7JPEvbSkZ29R1OTAuzdH9S/jzlBuqVw qxspoZ2vNR+X5OiuijHoiXrZJJt8oWizm2F5kv2X57hnPHE7NZhFkBmSmVfRfe8zU3dZslCGzjCsd gu2JHFY/Sf94xvJzGPNw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oGr1f-001kKH-R6; Thu, 28 Jul 2022 00:05:15 +0000 Received: from mga02.intel.com ([134.134.136.20]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1oGr1b-001kGj-9z for linux-riscv@lists.infradead.org; Thu, 28 Jul 2022 00:05:14 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1658966711; x=1690502711; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=WmEjuSFZahSX7NszEhwt1CcdJvJ9iADss3GKQ2aj9io=; b=PXvQv/962n0hYMp6++rWTdnvs9WSgEZ/iq87XkkA6Erg1qU22JeG6Ify 8TOtkWtawGG+0ogmzIX7hIrRDxR+BlyimN5enlKM3O09NKUGdKSZiaGyf xkTxKJsda0VMPlQ2VHv8lL0JfyUBP/cvhf6FkS9R5caTZgIGQUfRFhP8C 9iSdWdQKtkUj4qdrL8FXstYZ6GsHQpO0p2uNIK/hUG0WAvkqJtXSpHXFj Xket8yahdqeUqFnughdBNCY2cdg3RqcdSxwbOkwyvZjXxCY9ojnw+CIRG um5lPQvhErXli8eUDFolTIrz5VaIs8O2AzffLAj/FLBubRVi+8AmSmKfa g==; X-IronPort-AV: E=McAfee;i="6400,9594,10421"; a="275257641" X-IronPort-AV: E=Sophos;i="5.93,196,1654585200"; d="scan'208";a="275257641" Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Jul 2022 17:05:08 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.93,196,1654585200"; d="scan'208";a="668565341" Received: from lkp-server01.sh.intel.com (HELO e0eace57cfef) ([10.239.97.150]) by fmsmga004.fm.intel.com with ESMTP; 27 Jul 2022 17:05:03 -0700 Received: from kbuild by e0eace57cfef with local (Exim 4.96) (envelope-from ) id 1oGr1T-0009GM-04; Thu, 28 Jul 2022 00:05:03 +0000 Date: Thu, 28 Jul 2022 08:04:33 +0800 From: kernel test robot To: guoren@kernel.org, palmer@rivosinc.com, heiko@sntech.de, hch@infradead.org, arnd@arndb.de, peterz@infradead.org, will@kernel.org, boqun.feng@gmail.com, longman@redhat.com, mingo@redhat.com, philipp.tomsich@vrull.eu, cmuellner@linux.com, linux-kernel@vger.kernel.org, David.Laight@aculab.com Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org, linux-riscv@lists.infradead.org, linux-csky@vger.kernel.org, Guo Ren Subject: Re: [PATCH V8 07/10] riscv: Add qspinlock support Message-ID: <202207280822.VHS6qieH-lkp@intel.com> References: <20220724122517.1019187-8-guoren@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20220724122517.1019187-8-guoren@kernel.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220727_170511_528120_F1CFC58E X-CRM114-Status: GOOD ( 13.90 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Hi, I love your patch! Perhaps something to improve: [auto build test WARNING on arnd-asm-generic/master] [also build test WARNING on linus/master v5.19-rc8 next-20220727] [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/guoren-kernel-org/arch-Add-qspinlock-support-with-combo-style/20220724-202743 base: https://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic.git master config: riscv-randconfig-r026-20220727 (https://download.01.org/0day-ci/archive/20220728/202207280822.VHS6qieH-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 8dfaecc4c24494337933aff9d9166486ca0949f1) 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 # install riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu # https://github.com/intel-lab-lkp/linux/commit/980c0acb7f432777e3473ab9a5696044e03b3f3d git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review guoren-kernel-org/arch-Add-qspinlock-support-with-combo-style/20220724-202743 git checkout 980c0acb7f432777e3473ab9a5696044e03b3f3d # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash drivers/net/wireguard/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot All warnings (new ones prefixed by >>): In file included from drivers/net/wireguard/queueing.c:6: In file included from drivers/net/wireguard/queueing.h:9: In file included from drivers/net/wireguard/peer.h:9: In file included from drivers/net/wireguard/device.h:9: In file included from drivers/net/wireguard/noise.h:8: In file included from drivers/net/wireguard/messages.h:10: In file included from include/crypto/chacha20poly1305.h:10: In file included from include/linux/scatterlist.h:9: In file included from arch/riscv/include/asm/io.h:136: include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __raw_readb(PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu' #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) ^ In file included from drivers/net/wireguard/queueing.c:6: In file included from drivers/net/wireguard/queueing.h:9: In file included from drivers/net/wireguard/peer.h:9: In file included from drivers/net/wireguard/device.h:9: In file included from drivers/net/wireguard/noise.h:8: In file included from drivers/net/wireguard/messages.h:10: In file included from include/crypto/chacha20poly1305.h:10: In file included from include/linux/scatterlist.h:9: In file included from arch/riscv/include/asm/io.h:136: include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu' #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) ^ In file included from drivers/net/wireguard/queueing.c:6: In file included from drivers/net/wireguard/queueing.h:9: In file included from drivers/net/wireguard/peer.h:9: In file included from drivers/net/wireguard/device.h:9: In file included from drivers/net/wireguard/noise.h:8: In file included from drivers/net/wireguard/messages.h:10: In file included from include/crypto/chacha20poly1305.h:10: In file included from include/linux/scatterlist.h:9: In file included from arch/riscv/include/asm/io.h:136: include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writeb(value, PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:1107:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; ~~~~~~~~~~ ^ >> drivers/net/wireguard/queueing.c:68:18: warning: cast to smaller integer type 'u32' (aka 'unsigned int') from 'typeof (_x_)' (aka 'struct sk_buff *') [-Wpointer-to-int-cast] WRITE_ONCE(NEXT(xchg_release(&queue->head, skb)), skb); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/atomic/atomic-instrumented.h:1901:2: note: expanded from macro 'xchg_release' arch_xchg_release(__ai_ptr, __VA_ARGS__); \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/atomic/atomic-arch-fallback.h:24:2: note: expanded from macro 'arch_xchg_release' __atomic_op_release(arch_xchg, __VA_ARGS__) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/atomic.h:68:2: note: expanded from macro '__atomic_op_release' op##_relaxed(args); \ ^~~~~~~~~~~~~~~~~~ note: (skipping 7 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/compiler_types.h:352:22: note: expanded from macro 'compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ^~~~~~~~~ include/linux/compiler_types.h:340:23: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ^~~~~~~~~ include/linux/compiler_types.h:332:9: note: expanded from macro '__compiletime_assert' if (!(condition)) \ ^~~~~~~~~ >> drivers/net/wireguard/queueing.c:68:18: warning: cast to 'typeof (*((__ai_ptr)))' (aka 'struct sk_buff *') from smaller integer type 'unsigned int' [-Wint-to-pointer-cast] WRITE_ONCE(NEXT(xchg_release(&queue->head, skb)), skb); ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/atomic/atomic-instrumented.h:1901:2: note: expanded from macro 'xchg_release' arch_xchg_release(__ai_ptr, __VA_ARGS__); \ ^ include/linux/atomic/atomic-arch-fallback.h:24:2: note: expanded from macro 'arch_xchg_release' __atomic_op_release(arch_xchg, __VA_ARGS__) ^ include/linux/atomic.h:68:2: note: expanded from macro '__atomic_op_release' op##_relaxed(args); \ ^ note: (skipping 7 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/compiler_types.h:352:22: note: expanded from macro 'compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler_types.h:340:23: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler_types.h:332:9: note: expanded from macro '__compiletime_assert' if (!(condition)) \ ^~~~~~~~~ >> drivers/net/wireguard/queueing.c:68:18: warning: cast to smaller integer type 'u32' (aka 'unsigned int') from 'typeof (_x_)' (aka 'struct sk_buff *') [-Wpointer-to-int-cast] WRITE_ONCE(NEXT(xchg_release(&queue->head, skb)), skb); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/atomic/atomic-instrumented.h:1901:2: note: expanded from macro 'xchg_release' arch_xchg_release(__ai_ptr, __VA_ARGS__); \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/atomic/atomic-arch-fallback.h:24:2: note: expanded from macro 'arch_xchg_release' __atomic_op_release(arch_xchg, __VA_ARGS__) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/atomic.h:68:2: note: expanded from macro '__atomic_op_release' op##_relaxed(args); \ ^~~~~~~~~~~~~~~~~~ note: (skipping 7 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/compiler_types.h:352:22: note: expanded from macro 'compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ^~~~~~~~~ include/linux/compiler_types.h:340:23: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ^~~~~~~~~ include/linux/compiler_types.h:332:9: note: expanded from macro '__compiletime_assert' if (!(condition)) \ ^~~~~~~~~ >> drivers/net/wireguard/queueing.c:68:18: warning: cast to 'typeof (*((__ai_ptr)))' (aka 'struct sk_buff *') from smaller integer type 'unsigned int' [-Wint-to-pointer-cast] WRITE_ONCE(NEXT(xchg_release(&queue->head, skb)), skb); ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/atomic/atomic-instrumented.h:1901:2: note: expanded from macro 'xchg_release' arch_xchg_release(__ai_ptr, __VA_ARGS__); \ ^ include/linux/atomic/atomic-arch-fallback.h:24:2: note: expanded from macro 'arch_xchg_release' __atomic_op_release(arch_xchg, __VA_ARGS__) ^ include/linux/atomic.h:68:2: note: expanded from macro '__atomic_op_release' op##_relaxed(args); \ ^ note: (skipping 7 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/compiler_types.h:352:22: note: expanded from macro 'compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler_types.h:340:23: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler_types.h:332:9: note: expanded from macro '__compiletime_assert' if (!(condition)) \ ^~~~~~~~~ >> drivers/net/wireguard/queueing.c:68:18: warning: cast to smaller integer type 'u32' (aka 'unsigned int') from 'typeof (_x_)' (aka 'struct sk_buff *') [-Wpointer-to-int-cast] WRITE_ONCE(NEXT(xchg_release(&queue->head, skb)), skb); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/atomic/atomic-instrumented.h:1901:2: note: expanded from macro 'xchg_release' arch_xchg_release(__ai_ptr, __VA_ARGS__); \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/atomic/atomic-arch-fallback.h:24:2: note: expanded from macro 'arch_xchg_release' __atomic_op_release(arch_xchg, __VA_ARGS__) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/atomic.h:68:2: note: expanded from macro '__atomic_op_release' op##_relaxed(args); \ ^~~~~~~~~~~~~~~~~~ note: (skipping 7 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/compiler_types.h:352:22: note: expanded from macro 'compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ^~~~~~~~~ include/linux/compiler_types.h:340:23: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ^~~~~~~~~ include/linux/compiler_types.h:332:9: note: expanded from macro '__compiletime_assert' if (!(condition)) \ ^~~~~~~~~ >> drivers/net/wireguard/queueing.c:68:18: warning: cast to 'typeof (*((__ai_ptr)))' (aka 'struct sk_buff *') from smaller integer type 'unsigned int' [-Wint-to-pointer-cast] WRITE_ONCE(NEXT(xchg_release(&queue->head, skb)), skb); ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/atomic/atomic-instrumented.h:1901:2: note: expanded from macro 'xchg_release' arch_xchg_release(__ai_ptr, __VA_ARGS__); \ ^ include/linux/atomic/atomic-arch-fallback.h:24:2: note: expanded from macro 'arch_xchg_release' __atomic_op_release(arch_xchg, __VA_ARGS__) ^ include/linux/atomic.h:68:2: note: expanded from macro '__atomic_op_release' op##_relaxed(args); \ ^ note: (skipping 7 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/compiler_types.h:352:22: note: expanded from macro 'compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler_types.h:340:23: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler_types.h:332:9: note: expanded from macro '__compiletime_assert' if (!(condition)) \ ^~~~~~~~~ >> drivers/net/wireguard/queueing.c:68:18: warning: cast to smaller integer type 'u32' (aka 'unsigned int') from 'typeof (_x_)' (aka 'struct sk_buff *') [-Wpointer-to-int-cast] WRITE_ONCE(NEXT(xchg_release(&queue->head, skb)), skb); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/atomic/atomic-instrumented.h:1901:2: note: expanded from macro 'xchg_release' arch_xchg_release(__ai_ptr, __VA_ARGS__); \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/atomic/atomic-arch-fallback.h:24:2: note: expanded from macro 'arch_xchg_release' __atomic_op_release(arch_xchg, __VA_ARGS__) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/atomic.h:68:2: note: expanded from macro '__atomic_op_release' op##_relaxed(args); \ ^~~~~~~~~~~~~~~~~~ note: (skipping 7 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/compiler_types.h:352:22: note: expanded from macro 'compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ^~~~~~~~~ include/linux/compiler_types.h:340:23: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ^~~~~~~~~ include/linux/compiler_types.h:332:9: note: expanded from macro '__compiletime_assert' if (!(condition)) \ ^~~~~~~~~ >> drivers/net/wireguard/queueing.c:68:18: warning: cast to 'typeof (*((__ai_ptr)))' (aka 'struct sk_buff *') from smaller integer type 'unsigned int' [-Wint-to-pointer-cast] WRITE_ONCE(NEXT(xchg_release(&queue->head, skb)), skb); ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/atomic/atomic-instrumented.h:1901:2: note: expanded from macro 'xchg_release' arch_xchg_release(__ai_ptr, __VA_ARGS__); \ ^ include/linux/atomic/atomic-arch-fallback.h:24:2: note: expanded from macro 'arch_xchg_release' __atomic_op_release(arch_xchg, __VA_ARGS__) ^ include/linux/atomic.h:68:2: note: expanded from macro '__atomic_op_release' op##_relaxed(args); \ ^ note: (skipping 7 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/compiler_types.h:352:22: note: expanded from macro 'compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler_types.h:340:23: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler_types.h:332:9: note: expanded from macro '__compiletime_assert' if (!(condition)) \ ^~~~~~~~~ >> drivers/net/wireguard/queueing.c:68:18: warning: cast to smaller integer type 'u32' (aka 'unsigned int') from 'typeof (_x_)' (aka 'struct sk_buff *') [-Wpointer-to-int-cast] WRITE_ONCE(NEXT(xchg_release(&queue->head, skb)), skb); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/atomic/atomic-instrumented.h:1901:2: note: expanded from macro 'xchg_release' arch_xchg_release(__ai_ptr, __VA_ARGS__); \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/atomic/atomic-arch-fallback.h:24:2: note: expanded from macro 'arch_xchg_release' __atomic_op_release(arch_xchg, __VA_ARGS__) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/atomic.h:68:2: note: expanded from macro '__atomic_op_release' op##_relaxed(args); \ ^~~~~~~~~~~~~~~~~~ note: (skipping 6 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/compiler_types.h:352:22: note: expanded from macro 'compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ^~~~~~~~~ include/linux/compiler_types.h:340:23: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ^~~~~~~~~ include/linux/compiler_types.h:332:9: note: expanded from macro '__compiletime_assert' if (!(condition)) \ ^~~~~~~~~ >> drivers/net/wireguard/queueing.c:68:18: warning: cast to 'typeof (*((__ai_ptr)))' (aka 'struct sk_buff *') from smaller integer type 'unsigned int' [-Wint-to-pointer-cast] WRITE_ONCE(NEXT(xchg_release(&queue->head, skb)), skb); ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/atomic/atomic-instrumented.h:1901:2: note: expanded from macro 'xchg_release' arch_xchg_release(__ai_ptr, __VA_ARGS__); \ ^ include/linux/atomic/atomic-arch-fallback.h:24:2: note: expanded from macro 'arch_xchg_release' __atomic_op_release(arch_xchg, __VA_ARGS__) ^ include/linux/atomic.h:68:2: note: expanded from macro '__atomic_op_release' op##_relaxed(args); \ ^ note: (skipping 6 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/compiler_types.h:352:22: note: expanded from macro 'compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler_types.h:340:23: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler_types.h:332:9: note: expanded from macro '__compiletime_assert' if (!(condition)) \ ^~~~~~~~~ >> drivers/net/wireguard/queueing.c:68:18: warning: cast to smaller integer type 'u32' (aka 'unsigned int') from 'typeof (_x_)' (aka 'struct sk_buff *') [-Wpointer-to-int-cast] WRITE_ONCE(NEXT(xchg_release(&queue->head, skb)), skb); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/atomic/atomic-instrumented.h:1901:2: note: expanded from macro 'xchg_release' arch_xchg_release(__ai_ptr, __VA_ARGS__); \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/atomic/atomic-arch-fallback.h:24:2: note: expanded from macro 'arch_xchg_release' __atomic_op_release(arch_xchg, __VA_ARGS__) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/atomic.h:68:2: note: expanded from macro '__atomic_op_release' op##_relaxed(args); \ ^~~~~~~~~~~~~~~~~~ note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) drivers/net/wireguard/queueing.c:49:21: note: expanded from macro 'NEXT' #define NEXT(skb) ((skb)->prev) ^~~ include/asm-generic/rwonce.h:61:15: note: expanded from macro 'WRITE_ONCE' __WRITE_ONCE(x, val); \ ^ include/asm-generic/rwonce.h:55:20: note: expanded from macro '__WRITE_ONCE' *(volatile typeof(x) *)&(x) = (val); \ ^ >> drivers/net/wireguard/queueing.c:68:18: warning: cast to 'typeof (*((__ai_ptr)))' (aka 'struct sk_buff *') from smaller integer type 'unsigned int' [-Wint-to-pointer-cast] WRITE_ONCE(NEXT(xchg_release(&queue->head, skb)), skb); ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/atomic/atomic-instrumented.h:1901:2: note: expanded from macro 'xchg_release' arch_xchg_release(__ai_ptr, __VA_ARGS__); \ ^ include/linux/atomic/atomic-arch-fallback.h:24:2: note: expanded from macro 'arch_xchg_release' __atomic_op_release(arch_xchg, __VA_ARGS__) ^ include/linux/atomic.h:68:2: note: expanded from macro '__atomic_op_release' op##_relaxed(args); \ ^ note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) drivers/net/wireguard/queueing.c:49:21: note: expanded from macro 'NEXT' #define NEXT(skb) ((skb)->prev) ^ include/asm-generic/rwonce.h:61:15: note: expanded from macro 'WRITE_ONCE' __WRITE_ONCE(x, val); \ ~~~~~~~~~~~~~^~~~~~~ include/asm-generic/rwonce.h:55:20: note: expanded from macro '__WRITE_ONCE' *(volatile typeof(x) *)&(x) = (val); \ ^ >> drivers/net/wireguard/queueing.c:68:18: warning: cast to smaller integer type 'u32' (aka 'unsigned int') from 'typeof (_x_)' (aka 'struct sk_buff *') [-Wpointer-to-int-cast] WRITE_ONCE(NEXT(xchg_release(&queue->head, skb)), skb); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/atomic/atomic-instrumented.h:1901:2: note: expanded from macro 'xchg_release' arch_xchg_release(__ai_ptr, __VA_ARGS__); \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/atomic/atomic-arch-fallback.h:24:2: note: expanded from macro 'arch_xchg_release' __atomic_op_release(arch_xchg, __VA_ARGS__) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/atomic.h:68:2: note: expanded from macro '__atomic_op_release' op##_relaxed(args); \ ^~~~~~~~~~~~~~~~~~ note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) drivers/net/wireguard/queueing.c:49:21: note: expanded from macro 'NEXT' #define NEXT(skb) ((skb)->prev) ^~~ include/asm-generic/rwonce.h:61:15: note: expanded from macro 'WRITE_ONCE' __WRITE_ONCE(x, val); \ ^ include/asm-generic/rwonce.h:55:27: note: expanded from macro '__WRITE_ONCE' *(volatile typeof(x) *)&(x) = (val); \ ^ >> drivers/net/wireguard/queueing.c:68:18: warning: cast to 'typeof (*((__ai_ptr)))' (aka 'struct sk_buff *') from smaller integer type 'unsigned int' [-Wint-to-pointer-cast] WRITE_ONCE(NEXT(xchg_release(&queue->head, skb)), skb); ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/atomic/atomic-instrumented.h:1901:2: note: expanded from macro 'xchg_release' arch_xchg_release(__ai_ptr, __VA_ARGS__); \ ^ include/linux/atomic/atomic-arch-fallback.h:24:2: note: expanded from macro 'arch_xchg_release' __atomic_op_release(arch_xchg, __VA_ARGS__) ^ include/linux/atomic.h:68:2: note: expanded from macro '__atomic_op_release' op##_relaxed(args); \ ^ note: (skipping 3 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) drivers/net/wireguard/queueing.c:49:21: note: expanded from macro 'NEXT' #define NEXT(skb) ((skb)->prev) ^ include/asm-generic/rwonce.h:61:15: note: expanded from macro 'WRITE_ONCE' __WRITE_ONCE(x, val); \ ~~~~~~~~~~~~~^~~~~~~ include/asm-generic/rwonce.h:55:27: note: expanded from macro '__WRITE_ONCE' *(volatile typeof(x) *)&(x) = (val); \ ^ 21 warnings generated. vim +68 drivers/net/wireguard/queueing.c 8b5553ace83cced7 Jason A. Donenfeld 2021-02-22 64 8b5553ace83cced7 Jason A. Donenfeld 2021-02-22 65 static void __wg_prev_queue_enqueue(struct prev_queue *queue, struct sk_buff *skb) 8b5553ace83cced7 Jason A. Donenfeld 2021-02-22 66 { 8b5553ace83cced7 Jason A. Donenfeld 2021-02-22 67 WRITE_ONCE(NEXT(skb), NULL); 8b5553ace83cced7 Jason A. Donenfeld 2021-02-22 @68 WRITE_ONCE(NEXT(xchg_release(&queue->head, skb)), skb); 8b5553ace83cced7 Jason A. Donenfeld 2021-02-22 69 } 8b5553ace83cced7 Jason A. Donenfeld 2021-02-22 70 -- 0-DAY CI Kernel Test Service https://01.org/lkp _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv