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X-CSE-ConnectionGUID: xb5xVnhYSdqzJz5y11r3yA== X-CSE-MsgGUID: kRWBVyL9RlC36BNrnHpsPw== X-IronPort-AV: E=McAfee;i="6800,10657,11616"; a="65470804" X-IronPort-AV: E=Sophos;i="6.19,313,1754982000"; d="scan'208";a="65470804" Received: from fmviesa002.fm.intel.com ([10.60.135.142]) by orvoesa110.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Nov 2025 16:54:14 -0800 X-CSE-ConnectionGUID: OfzuSc/sTqagsxQEJnRKhA== X-CSE-MsgGUID: ZRBnWoAVTR28HjN0L0qnsA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.19,313,1754982000"; d="scan'208";a="213994704" Received: from lkp-server01.sh.intel.com (HELO adf6d29aa8d9) ([10.239.97.150]) by fmviesa002.fm.intel.com with ESMTP; 17 Nov 2025 16:54:10 -0800 Received: from kbuild by adf6d29aa8d9 with local (Exim 4.96) (envelope-from ) id 1vL9yy-0001CF-2d; Tue, 18 Nov 2025 00:54:08 +0000 Date: Tue, 18 Nov 2025 08:53:58 +0800 From: kernel test robot To: David Heidelberg via B4 Relay , Andrew Morton , Uladzislau Rezki , "Vishal Moola (Oracle)" Cc: oe-kbuild-all@lists.linux.dev, Linux Memory Management List , linux-kernel@vger.kernel.org, phone-devel@vger.kernel.org, David Heidelberg Subject: Re: [PATCH] mm/vmalloc: warn only once when vmalloc detect invalid gfp flags Message-ID: <202511180838.vEBLp7Hm-lkp@intel.com> References: <20251118-only-one-vmalloc-v1-1-29f8eacb4605@ixit.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251118-only-one-vmalloc-v1-1-29f8eacb4605@ixit.cz> X-Rspam-User: X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: 1B41080017 X-Stat-Signature: 1jd98pxsbgcutmnke9esg7kp9zx8t9ad X-HE-Tag: 1763427254-556314 X-HE-Meta: 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 b5VwB2x2 JEOYRGDBh+NhC82EsLtpkDRrYQnasjNwJ8NVgfgJim/L8qIUWtxJ6qk4HeU5INYncmHeeT6sObdQdmnRnH/Aa2E5UK83YpAzOHbZk01ZwdAkMe1m8YfbEk2zEp+te0YU2FSeDjlbdu4kptVUfU4ZxUepln5qd5FuqzUlKBuNKaw/1XY0DaemZrq/lF00B3dzdxd5jV8TcRP4liaCXw5xWkDkTEhljkvpDjmlt97TZFxpDPQyLMD8pK7fv3eKauJhjHIyi+LEz4DHcyQR7WtN9uXYHrgp9rPEIuhF+e/9H6iaYcW0IU8vdvMGZvmxunQDWNYYzrC2rRGTxUBoY+EqEvSWGR2KWqwk/IrXEjCNOFYATMslQyLZsZ1TtsQ== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hi David, kernel test robot noticed the following build errors: [auto build test ERROR on 0c1c7a6a83feaf2cf182c52983ffe330ffb50280] url: https://github.com/intel-lab-lkp/linux/commits/David-Heidelberg-via-B4-Relay/mm-vmalloc-warn-only-once-when-vmalloc-detect-invalid-gfp-flags/20251118-080722 base: 0c1c7a6a83feaf2cf182c52983ffe330ffb50280 patch link: https://lore.kernel.org/r/20251118-only-one-vmalloc-v1-1-29f8eacb4605%40ixit.cz patch subject: [PATCH] mm/vmalloc: warn only once when vmalloc detect invalid gfp flags config: alpha-allnoconfig (https://download.01.org/0day-ci/archive/20251118/202511180838.vEBLp7Hm-lkp@intel.com/config) compiler: alpha-linux-gcc (GCC) 15.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251118/202511180838.vEBLp7Hm-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/202511180838.vEBLp7Hm-lkp@intel.com/ All error/warnings (new ones prefixed by >>): In file included from arch/alpha/include/asm/bug.h:23, from include/linux/bug.h:5, from include/linux/alloc_tag.h:8, from include/linux/vmalloc.h:5, from mm/vmalloc.c:11: mm/vmalloc.c: In function 'vmalloc_fix_flags': >> mm/vmalloc.c:3938:19: error: expected ')' before 'invalid_mask' 3938 | invalid_mask, &invalid_mask, flags, &flags); | ^~~~~~~~~~~~ include/asm-generic/bug.h:105:62: note: in definition of macro '__WARN_printf' 105 | warn_slowpath_fmt(__FILE__, __LINE__, taint, arg); \ | ^~~ include/linux/once_lite.h:31:25: note: in expansion of macro 'WARN' 31 | func(__VA_ARGS__); \ | ^~~~ include/asm-generic/bug.h:159:9: note: in expansion of macro 'DO_ONCE_LITE_IF' 159 | DO_ONCE_LITE_IF(condition, WARN, 1, format) | ^~~~~~~~~~~~~~~ mm/vmalloc.c:3937:9: note: in expansion of macro 'WARN_ONCE' 3937 | WARN_ONCE(1, "Unexpected gfp: %#x (%pGg). Fixing up to gfp: %#x (%pGg). Fix your code!\n" | ^~~~~~~~~ include/asm-generic/bug.h:105:34: note: to match this '(' 105 | warn_slowpath_fmt(__FILE__, __LINE__, taint, arg); \ | ^ include/asm-generic/bug.h:141:17: note: in expansion of macro '__WARN_printf' 141 | __WARN_printf(TAINT_WARN, format); \ | ^~~~~~~~~~~~~ include/linux/once_lite.h:31:25: note: in expansion of macro 'WARN' 31 | func(__VA_ARGS__); \ | ^~~~ include/asm-generic/bug.h:159:9: note: in expansion of macro 'DO_ONCE_LITE_IF' 159 | DO_ONCE_LITE_IF(condition, WARN, 1, format) | ^~~~~~~~~~~~~~~ mm/vmalloc.c:3937:9: note: in expansion of macro 'WARN_ONCE' 3937 | WARN_ONCE(1, "Unexpected gfp: %#x (%pGg). Fixing up to gfp: %#x (%pGg). Fix your code!\n" | ^~~~~~~~~ >> mm/vmalloc.c:3937:22: warning: format '%x' expects a matching 'unsigned int' argument [-Wformat=] 3937 | WARN_ONCE(1, "Unexpected gfp: %#x (%pGg). Fixing up to gfp: %#x (%pGg). Fix your code!\n" | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/bug.h:105:62: note: in definition of macro '__WARN_printf' 105 | warn_slowpath_fmt(__FILE__, __LINE__, taint, arg); \ | ^~~ include/linux/once_lite.h:31:25: note: in expansion of macro 'WARN' 31 | func(__VA_ARGS__); \ | ^~~~ include/asm-generic/bug.h:159:9: note: in expansion of macro 'DO_ONCE_LITE_IF' 159 | DO_ONCE_LITE_IF(condition, WARN, 1, format) | ^~~~~~~~~~~~~~~ mm/vmalloc.c:3937:9: note: in expansion of macro 'WARN_ONCE' 3937 | WARN_ONCE(1, "Unexpected gfp: %#x (%pGg). Fixing up to gfp: %#x (%pGg). Fix your code!\n" | ^~~~~~~~~ mm/vmalloc.c:3937:41: note: format string is defined here 3937 | WARN_ONCE(1, "Unexpected gfp: %#x (%pGg). Fixing up to gfp: %#x (%pGg). Fix your code!\n" | ~~^ | | | unsigned int >> mm/vmalloc.c:3937:22: warning: format '%p' expects a matching 'void *' argument [-Wformat=] 3937 | WARN_ONCE(1, "Unexpected gfp: %#x (%pGg). Fixing up to gfp: %#x (%pGg). Fix your code!\n" | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/bug.h:105:62: note: in definition of macro '__WARN_printf' 105 | warn_slowpath_fmt(__FILE__, __LINE__, taint, arg); \ | ^~~ include/linux/once_lite.h:31:25: note: in expansion of macro 'WARN' 31 | func(__VA_ARGS__); \ | ^~~~ include/asm-generic/bug.h:159:9: note: in expansion of macro 'DO_ONCE_LITE_IF' 159 | DO_ONCE_LITE_IF(condition, WARN, 1, format) | ^~~~~~~~~~~~~~~ mm/vmalloc.c:3937:9: note: in expansion of macro 'WARN_ONCE' 3937 | WARN_ONCE(1, "Unexpected gfp: %#x (%pGg). Fixing up to gfp: %#x (%pGg). Fix your code!\n" | ^~~~~~~~~ mm/vmalloc.c:3937:45: note: format string is defined here 3937 | WARN_ONCE(1, "Unexpected gfp: %#x (%pGg). Fixing up to gfp: %#x (%pGg). Fix your code!\n" | ~^ | | | void * >> mm/vmalloc.c:3937:22: warning: format '%x' expects a matching 'unsigned int' argument [-Wformat=] 3937 | WARN_ONCE(1, "Unexpected gfp: %#x (%pGg). Fixing up to gfp: %#x (%pGg). Fix your code!\n" | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/bug.h:105:62: note: in definition of macro '__WARN_printf' 105 | warn_slowpath_fmt(__FILE__, __LINE__, taint, arg); \ | ^~~ include/linux/once_lite.h:31:25: note: in expansion of macro 'WARN' 31 | func(__VA_ARGS__); \ | ^~~~ include/asm-generic/bug.h:159:9: note: in expansion of macro 'DO_ONCE_LITE_IF' 159 | DO_ONCE_LITE_IF(condition, WARN, 1, format) | ^~~~~~~~~~~~~~~ mm/vmalloc.c:3937:9: note: in expansion of macro 'WARN_ONCE' 3937 | WARN_ONCE(1, "Unexpected gfp: %#x (%pGg). Fixing up to gfp: %#x (%pGg). Fix your code!\n" | ^~~~~~~~~ mm/vmalloc.c:3937:71: note: format string is defined here 3937 | WARN_ONCE(1, "Unexpected gfp: %#x (%pGg). Fixing up to gfp: %#x (%pGg). Fix your code!\n" | ~~^ | | | unsigned int >> mm/vmalloc.c:3937:22: warning: format '%p' expects a matching 'void *' argument [-Wformat=] 3937 | WARN_ONCE(1, "Unexpected gfp: %#x (%pGg). Fixing up to gfp: %#x (%pGg). Fix your code!\n" | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/bug.h:105:62: note: in definition of macro '__WARN_printf' 105 | warn_slowpath_fmt(__FILE__, __LINE__, taint, arg); \ | ^~~ include/linux/once_lite.h:31:25: note: in expansion of macro 'WARN' 31 | func(__VA_ARGS__); \ | ^~~~ include/asm-generic/bug.h:159:9: note: in expansion of macro 'DO_ONCE_LITE_IF' 159 | DO_ONCE_LITE_IF(condition, WARN, 1, format) | ^~~~~~~~~~~~~~~ mm/vmalloc.c:3937:9: note: in expansion of macro 'WARN_ONCE' 3937 | WARN_ONCE(1, "Unexpected gfp: %#x (%pGg). Fixing up to gfp: %#x (%pGg). Fix your code!\n" | ^~~~~~~~~ mm/vmalloc.c:3937:75: note: format string is defined here 3937 | WARN_ONCE(1, "Unexpected gfp: %#x (%pGg). Fixing up to gfp: %#x (%pGg). Fix your code!\n" | ~^ | | | void * >> mm/vmalloc.c:3934:15: warning: unused variable 'invalid_mask' [-Wunused-variable] 3934 | gfp_t invalid_mask = flags & ~GFP_VMALLOC_SUPPORTED; | ^~~~~~~~~~~~ vim +3938 mm/vmalloc.c ^1da177e4c3f41 Linus Torvalds 2005-04-16 3921 7179b225631532 Vishal Moola (Oracle 2025-11-12 3922) /* 7179b225631532 Vishal Moola (Oracle 2025-11-12 3923) * See __vmalloc_node_range() for a clear list of supported vmalloc flags. 7179b225631532 Vishal Moola (Oracle 2025-11-12 3924) * This gfp lists all flags currently passed through vmalloc. Currently, 7179b225631532 Vishal Moola (Oracle 2025-11-12 3925) * __GFP_ZERO is used by BPF and __GFP_NORETRY is used by percpu. Both drm 7179b225631532 Vishal Moola (Oracle 2025-11-12 3926) * and BPF also use GFP_USER, which is GFP_KERNEL | __GFP_HARDWALL. 7179b225631532 Vishal Moola (Oracle 2025-11-12 3927) */ 7179b225631532 Vishal Moola (Oracle 2025-11-12 3928) #define GFP_VMALLOC_SUPPORTED (GFP_KERNEL | GFP_ATOMIC | GFP_NOWAIT |\ 7179b225631532 Vishal Moola (Oracle 2025-11-12 3929) __GFP_NOFAIL | __GFP_ZERO | __GFP_NORETRY |\ 7179b225631532 Vishal Moola (Oracle 2025-11-12 3930) __GFP_HARDWALL) 7179b225631532 Vishal Moola (Oracle 2025-11-12 3931) 7179b225631532 Vishal Moola (Oracle 2025-11-12 3932) static gfp_t vmalloc_fix_flags(gfp_t flags) 7179b225631532 Vishal Moola (Oracle 2025-11-12 3933) { 7179b225631532 Vishal Moola (Oracle 2025-11-12 @3934) gfp_t invalid_mask = flags & ~GFP_VMALLOC_SUPPORTED; 7179b225631532 Vishal Moola (Oracle 2025-11-12 3935) 7179b225631532 Vishal Moola (Oracle 2025-11-12 3936) flags &= GFP_VMALLOC_SUPPORTED; bf791000a32caf David Heidelberg 2025-11-18 @3937 WARN_ONCE(1, "Unexpected gfp: %#x (%pGg). Fixing up to gfp: %#x (%pGg). Fix your code!\n" 7179b225631532 Vishal Moola (Oracle 2025-11-12 @3938) invalid_mask, &invalid_mask, flags, &flags); 7179b225631532 Vishal Moola (Oracle 2025-11-12 3939) return flags; 7179b225631532 Vishal Moola (Oracle 2025-11-12 3940) } 7179b225631532 Vishal Moola (Oracle 2025-11-12 3941) -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki