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X-CSE-ConnectionGUID: tqPNu9e/Tf+77S/YXn3Wug== X-CSE-MsgGUID: eorGjQYHTkiD+SAc2Vnn2Q== X-IronPort-AV: E=McAfee;i="6800,10657,11743"; a="75770636" X-IronPort-AV: E=Sophos;i="6.23,150,1770624000"; d="scan'208";a="75770636" Received: from orviesa010.jf.intel.com ([10.64.159.150]) by fmvoesa111.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Mar 2026 07:37:20 -0700 X-CSE-ConnectionGUID: GQSdPSfWSXiYPERlw7dyaw== X-CSE-MsgGUID: T37eBBTtRSqbMyEgnSZ/aw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,150,1770624000"; d="scan'208";a="225245200" Received: from lkp-server01.sh.intel.com (HELO 283bf2e1b94a) ([10.239.97.150]) by orviesa010.jf.intel.com with ESMTP; 30 Mar 2026 07:37:16 -0700 Received: from kbuild by 283bf2e1b94a with local (Exim 4.98.2) (envelope-from ) id 1w7Dju-000000001DN-01E6; Mon, 30 Mar 2026 14:37:14 +0000 Date: Mon, 30 Mar 2026 22:36:53 +0800 From: kernel test robot To: Mikko Perttunen , Thierry Reding , Uwe =?iso-8859-1?Q?Kleine-K=F6nig?= , Jonathan Hunter , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: oe-kbuild-all@lists.linux.dev, linux-pwm@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Yi-Wei Wang , Mikko Perttunen Subject: Re: [PATCH v2 2/7] pwm: tegra: Avoid hard-coded max clock frequency Message-ID: <202603302259.NdAkuCVx-lkp@intel.com> References: <20260325-t264-pwm-v2-2-998d885984b3@nvidia.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260325-t264-pwm-v2-2-998d885984b3@nvidia.com> Hi Mikko, kernel test robot noticed the following build warnings: [auto build test WARNING on 11439c4635edd669ae435eec308f4ab8a0804808] url: https://github.com/intel-lab-lkp/linux/commits/Mikko-Perttunen/dt-bindings-pwm-Document-Tegra194-and-Tegra264-controllers/20260329-233356 base: 11439c4635edd669ae435eec308f4ab8a0804808 patch link: https://lore.kernel.org/r/20260325-t264-pwm-v2-2-998d885984b3%40nvidia.com patch subject: [PATCH v2 2/7] pwm: tegra: Avoid hard-coded max clock frequency config: nios2-allmodconfig (https://download.01.org/0day-ci/archive/20260330/202603302259.NdAkuCVx-lkp@intel.com/config) compiler: nios2-linux-gcc (GCC) 11.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260330/202603302259.NdAkuCVx-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/202603302259.NdAkuCVx-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from include/linux/kernel.h:17, from include/linux/clk.h:13, from drivers/pwm/pwm-tegra.c:39: drivers/pwm/pwm-tegra.c: In function 'tegra_pwm_probe': >> include/linux/limits.h:26:25: warning: unsigned conversion from 'long long int' to 'long unsigned int' changes value from '9223372036854775807' to '4294967295' [-Woverflow] 26 | #define S64_MAX ((s64)(U64_MAX >> 1)) | ^~~~~~~~~~~~~~~~~~~~~ drivers/pwm/pwm-tegra.c:303:47: note: in expansion of macro 'S64_MAX' 303 | ret = dev_pm_opp_set_rate(&pdev->dev, S64_MAX); | ^~~~~~~ vim +26 include/linux/limits.h 3c9d017cc283df Andy Shevchenko 2023-08-04 14 54d50897d544c8 Masahiro Yamada 2019-03-07 15 #define U8_MAX ((u8)~0U) 54d50897d544c8 Masahiro Yamada 2019-03-07 16 #define S8_MAX ((s8)(U8_MAX >> 1)) 54d50897d544c8 Masahiro Yamada 2019-03-07 17 #define S8_MIN ((s8)(-S8_MAX - 1)) 54d50897d544c8 Masahiro Yamada 2019-03-07 18 #define U16_MAX ((u16)~0U) 54d50897d544c8 Masahiro Yamada 2019-03-07 19 #define S16_MAX ((s16)(U16_MAX >> 1)) 54d50897d544c8 Masahiro Yamada 2019-03-07 20 #define S16_MIN ((s16)(-S16_MAX - 1)) 54d50897d544c8 Masahiro Yamada 2019-03-07 21 #define U32_MAX ((u32)~0U) 3f50f132d8400e John Fastabend 2020-03-30 22 #define U32_MIN ((u32)0) 54d50897d544c8 Masahiro Yamada 2019-03-07 23 #define S32_MAX ((s32)(U32_MAX >> 1)) 54d50897d544c8 Masahiro Yamada 2019-03-07 24 #define S32_MIN ((s32)(-S32_MAX - 1)) 54d50897d544c8 Masahiro Yamada 2019-03-07 25 #define U64_MAX ((u64)~0ULL) 54d50897d544c8 Masahiro Yamada 2019-03-07 @26 #define S64_MAX ((s64)(U64_MAX >> 1)) 54d50897d544c8 Masahiro Yamada 2019-03-07 27 #define S64_MIN ((s64)(-S64_MAX - 1)) 54d50897d544c8 Masahiro Yamada 2019-03-07 28 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki