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a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1704438882; x=1735974882; h=message-id:date:subject:to:cc:references:from: in-reply-to:content-transfer-encoding:mime-version; bh=/pXzJYb+HEOo8OnC0WvhhhLlAEzEjJklNOOxYIUcy24=; b=UzmktdYCsq+B2o+It/Zp0XqgspG9DYUFdr+rMOwJKYphqtMptHzvmYFv JXHm1ZgKYfAQ8ODoeCl4nqGScrtdfcSBPzBFAp68k139G5qXDGhQUEQxF RG0G0/hpoZ828PfXuaIHq9rS+xdl1EYJTKr2i49/91zyrwFiVDH5JCnmb bWeabOSZna9akI6BbYsOtgUdz79pYojhCYDbLc9/vREbtqapsakC1Udp1 0TQsNGxddohNcl1rcF/wInA3a3SWivx3PfywDP6UZVKz1caktrsErEnpV bW1uUETr/E4m3/BckA6Dm2eI15WZH7o1PLEa67zHa1O+RY9rVoVqOKwmm Q==; X-Mailman-Original-Authentication-Results: smtp3.osuosl.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.a=rsa-sha256 header.s=Intel header.b=UzmktdYC X-Mailman-Original-Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=intel.com; Subject: Re: [Intel-wired-lan] [PATCH iwl-next v1] ixgbe: Convert ret val type from s32 to int X-BeenThere: intel-wired-lan@osuosl.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Wired Ethernet Linux Kernel Driver Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jacob Keller , netdev@vger.kernel.org, anthony.l.nguyen@intel.com, oe-kbuild-all@lists.linux.dev Errors-To: intel-wired-lan-bounces@osuosl.org Sender: "Intel-wired-lan" On 1/4/24 15:47, Dan Carpenter wrote: > Hi Jedrzej, > > kernel test robot noticed the following build warnings: > > https://git-scm.com/docs/git-format-patch#_base_tree_information] > > url: https://github.com/intel-lab-lkp/linux/commits/Jedrzej-Jagielski/ixgbe-Convert-ret-val-type-from-s32-to-int/20240103-182213 > base: https://git.kernel.org/pub/scm/linux/kernel/git/horms/ipvs.git master > patch link: https://lore.kernel.org/r/20240103101135.386891-1-jedrzej.jagielski%40intel.com > patch subject: [PATCH iwl-next v1] ixgbe: Convert ret val type from s32 to int > config: i386-randconfig-141-20240104 (https://download.01.org/0day-ci/archive/20240104/202401041701.6QKTsZmx-lkp@intel.com/config) > compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 > > 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 > | Reported-by: Dan Carpenter > | Closes: https://lore.kernel.org/r/202401041701.6QKTsZmx-lkp@intel.com/ > > New smatch warnings: > drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c:2884 ixgbe_get_lcd_t_x550em() warn: missing error code? 'status' > drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c:3130 ixgbe_enter_lplu_t_x550em() warn: missing error code? 'status' > > Old smatch warnings: > drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c:2890 ixgbe_get_lcd_t_x550em() warn: missing error code? 'status' > > vim +/status +2884 drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c > > 9ea222bfe41f87 Jedrzej Jagielski 2024-01-03 2866 static int ixgbe_get_lcd_t_x550em(struct ixgbe_hw *hw, > 6ac7439459606a Don Skidmore 2015-06-17 2867 ixgbe_link_speed *lcd_speed) > 6ac7439459606a Don Skidmore 2015-06-17 2868 { > 6ac7439459606a Don Skidmore 2015-06-17 2869 u16 an_lp_status; > 9ea222bfe41f87 Jedrzej Jagielski 2024-01-03 2870 int status; > 6ac7439459606a Don Skidmore 2015-06-17 2871 u16 word = hw->eeprom.ctrl_word_3; > 6ac7439459606a Don Skidmore 2015-06-17 2872 > 6ac7439459606a Don Skidmore 2015-06-17 2873 *lcd_speed = IXGBE_LINK_SPEED_UNKNOWN; > 6ac7439459606a Don Skidmore 2015-06-17 2874 > 6ac7439459606a Don Skidmore 2015-06-17 2875 status = hw->phy.ops.read_reg(hw, IXGBE_AUTO_NEG_LP_STATUS, > 4dc4000b35119f Emil Tantilov 2016-09-26 2876 MDIO_MMD_AN, > 6ac7439459606a Don Skidmore 2015-06-17 2877 &an_lp_status); > 6ac7439459606a Don Skidmore 2015-06-17 2878 if (status) > 6ac7439459606a Don Skidmore 2015-06-17 2879 return status; > 6ac7439459606a Don Skidmore 2015-06-17 2880 > 6ac7439459606a Don Skidmore 2015-06-17 2881 /* If link partner advertised 1G, return 1G */ > 6ac7439459606a Don Skidmore 2015-06-17 2882 if (an_lp_status & IXGBE_AUTO_NEG_LP_1000BASE_CAP) { > 6ac7439459606a Don Skidmore 2015-06-17 2883 *lcd_speed = IXGBE_LINK_SPEED_1GB_FULL; > 6ac7439459606a Don Skidmore 2015-06-17 @2884 return status; indeed, 'return 0' would be clearer here > > Smatch only warns about missing error codes when the function returns an > int. :P The bug predates your patch obvoiusly. :D > > 6ac7439459606a Don Skidmore 2015-06-17 2885 } > 6ac7439459606a Don Skidmore 2015-06-17 2886 > 6ac7439459606a Don Skidmore 2015-06-17 2887 /* If 10G disabled for LPLU via NVM D10GMP, then return no valid LCD */ > 6ac7439459606a Don Skidmore 2015-06-17 2888 if ((hw->bus.lan_id && (word & NVM_INIT_CTRL_3_D10GMP_PORT1)) || > 6ac7439459606a Don Skidmore 2015-06-17 2889 (word & NVM_INIT_CTRL_3_D10GMP_PORT0)) > 6ac7439459606a Don Skidmore 2015-06-17 2890 return status; > 6ac7439459606a Don Skidmore 2015-06-17 2891 > 6ac7439459606a Don Skidmore 2015-06-17 2892 /* Link partner not capable of lower speeds, return 10G */ > 6ac7439459606a Don Skidmore 2015-06-17 2893 *lcd_speed = IXGBE_LINK_SPEED_10GB_FULL; > 6ac7439459606a Don Skidmore 2015-06-17 2894 return status; > 6ac7439459606a Don Skidmore 2015-06-17 2895 } >