linux-kernel - Re: [PATCH] tty: serial: qcom-geni-serial: Fix get_clk_div_rate() which otherwise could return a sub-optimal clock rate.

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Message-ID: <202206230511.W02MMaf8-lkp@intel.com>
Date:   Thu, 23 Jun 2022 05:51:45 +0800
From:   kernel test robot <lkp@...el.com>
To:     Vijaya Krishna Nivarthi <quic_vnivarth@...cinc.com>,
        agross@...nel.org, bjorn.andersson@...aro.org,
        gregkh@...uxfoundation.org, jirislaby@...nel.org,
        linux-arm-msm@...r.kernel.org, linux-serial@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        quic_msavaliy@...cinc.com, dianders@...omium.org, mka@...omium.org,
        swboyd@...omium.org,
        Vijaya Krishna Nivarthi <quic_vnivarth@...cinc.com>
Subject: Re: [PATCH] tty: serial: qcom-geni-serial: Fix get_clk_div_rate()
 which otherwise could return a sub-optimal clock rate.

Hi Vijaya,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on tty/tty-testing]
[also build test ERROR on linus/master v5.19-rc3 next-20220622]
[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]

url:    https://github.com/intel-lab-lkp/linux/commits/Vijaya-Krishna-Nivarthi/tty-serial-qcom-geni-serial-Fix-get_clk_div_rate-which-otherwise-could-return-a-sub-optimal-clock-rate/20220622-015826
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing
config: arm-randconfig-r036-20220622 (https://download.01.org/0day-ci/archive/20220623/202206230511.W02MMaf8-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 8b8d126598ce7bd5243da7f94f69fa1104288bee)
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 arm cross compiling tool for clang build
        # apt-get install binutils-arm-linux-gnueabi
        # https://github.com/intel-lab-lkp/linux/commit/668659f1481053090a9dbe9c83bd769de527a5c2
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Vijaya-Krishna-Nivarthi/tty-serial-qcom-geni-serial-Fix-get_clk_div_rate-which-otherwise-could-return-a-sub-optimal-clock-rate/20220622-015826
        git checkout 668659f1481053090a9dbe9c83bd769de527a5c2
        # 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=arm SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

>> ld.lld: error: undefined symbol: __aeabi_uldivmod
   >>> referenced by qcom_geni_serial.c
   >>>               tty/serial/qcom_geni_serial.o:(find_clk_rate_in_tol) in archive drivers/built-in.a
   >>> did you mean: __aeabi_uidivmod
   >>> defined in: arch/arm/lib/lib.a(lib1funcs.o)

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp