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Tue, 25 Nov 2025 02:28:25 +0000 Date: Tue, 25 Nov 2025 10:28:15 +0800 From: Philip Li To: Thomas Gleixner CC: kernel test robot , , , , , Ingo Molnar , "Peter Zijlstra (Intel)" , Mathieu Desnoyers , , Nathan Chancellor Subject: Re: [tip:core/rseq 25/39] include/linux/rseq_entry.h:132:3: error: invalid operand for instruction Message-ID: References: <202511250134.i0Jm8d7I-lkp@intel.com> <874iqji6n1.ffs@tglx> Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <874iqji6n1.ffs@tglx> X-ClientProxiedBy: SG2PR04CA0158.apcprd04.prod.outlook.com (2603:1096:4::20) To MN0PR11MB5963.namprd11.prod.outlook.com (2603:10b6:208:372::10) X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: MN0PR11MB5963:EE_|CH3PR11MB7895:EE_ X-MS-Office365-Filtering-Correlation-Id: 3b6b4993-2270-41bd-b492-08de2bca4fa6 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|376014|7416014|1800799024; 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> > ^ > > include/linux/uaccess.h:606:2: note: expanded from macro 'unsafe_get_user' > > arch_unsafe_get_user(x, ptr, local_label); \ > > ^ > > arch/powerpc/include/asm/uaccess.h:458:2: note: expanded from macro 'arch_unsafe_get_user' > > __get_user_size_goto(__gu_val, __gu_addr, sizeof(*(p)), e); \ > > ^ > > arch/powerpc/include/asm/uaccess.h:282:2: note: expanded from macro '__get_user_size_goto' > > __get_user_size_allowed(x, ptr, size, __gus_retval); \ > > ^ > > arch/powerpc/include/asm/uaccess.h:273:10: note: expanded from macro '__get_user_size_allowed' > > case 8: __get_user_asm2(x, (u64 __user *)ptr, retval); break; \ > > ^ > > arch/powerpc/include/asm/uaccess.h:256:4: note: expanded from macro '__get_user_asm2' > > " li %1+1,0\n" \ > > ^ > > :7:5: note: instantiated into assembly here > > li 31+1,0 > > Definitely not a problem of tip core/rseq. It just ends up in > __get_user_asm2() and then the compiler gets unhappy about the PowerPC > inline assembly for whatever reason. Thanks, got it, I will configure the bot to avoid sending further report for this. > > Thanks, > > tglx > > >