linux-kernel - Re: [PATCH v3 04/16] clk: samsung: fsd: Add initial clock support

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Message-ID: <202201220550.FSQ6N02X-lkp@intel.com>
Date:   Sat, 22 Jan 2022 05:13:03 +0800
From:   kernel test robot <lkp@...el.com>
To:     Alim Akhtar <alim.akhtar@...sung.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     kbuild-all@...ts.01.org, soc@...nel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, olof@...om.net, arnd@...db.de,
        linus.walleij@...aro.org, catalin.marinas@....com,
        robh+dt@...nel.org
Subject: Re: [PATCH v3 04/16] clk: samsung: fsd: Add initial clock support

Hi Alim,

I love your patch! Perhaps something to improve:

[auto build test WARNING on next-20220121]
[also build test WARNING on v5.16]
[cannot apply to clk/clk-next robh/for-next pinctrl-samsung/for-next v5.16 v5.16-rc8 v5.16-rc7]
[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/0day-ci/linux/commits/Alim-Akhtar/dt-bindings-add-vendor-prefix-for-Tesla/20220122-022924
base:    c94951012a748a0f8ed77cd8fc25640c6fe198f9
config: mips-allmodconfig (https://download.01.org/0day-ci/archive/20220122/202201220550.FSQ6N02X-lkp@intel.com/config)
compiler: mips-linux-gcc (GCC) 11.2.0
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
        # https://github.com/0day-ci/linux/commit/69b6b21ebabb149c1c07d83376e9c08a582c6423
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Alim-Akhtar/dt-bindings-add-vendor-prefix-for-Tesla/20220122-022924
        git checkout 69b6b21ebabb149c1c07d83376e9c08a582c6423
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=mips SHELL=/bin/bash drivers/clk/samsung/

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

All warnings (new ones prefixed by >>):

>> drivers/clk/samsung/clk-fsd.c:150:9: warning: this decimal constant is unsigned only in ISO C90
     150 |         PLL_35XX_RATE(24 * MHZ, 2400000000, 200, 2, 0),
         |         ^~~~~~~~~~~~~
   In file included from include/linux/bits.h:22,
                    from include/linux/bitops.h:6,
                    from include/linux/of.h:15,
                    from include/linux/clk-provider.h:9,
                    from drivers/clk/samsung/clk-fsd.c:11:
>> include/linux/build_bug.h:16:51: warning: this decimal constant is unsigned only in ISO C90
      16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); })))
         |                                                   ^
   drivers/clk/samsung/clk-pll.h:48:9: note: in expansion of macro 'BUILD_BUG_ON_ZERO'
      48 |         BUILD_BUG_ON_ZERO(PLL_RATE(_fin, _m, _p, _s, _k, _ks) != (_fout)))
         |         ^~~~~~~~~~~~~~~~~
   drivers/clk/samsung/clk-pll.h:52:33: note: in expansion of macro 'PLL_VALID_RATE'
      52 |                 .rate   =       PLL_VALID_RATE(_fin, _rate,     \
         |                                 ^~~~~~~~~~~~~~
   drivers/clk/samsung/clk-fsd.c:150:9: note: in expansion of macro 'PLL_35XX_RATE'
     150 |         PLL_35XX_RATE(24 * MHZ, 2400000000, 200, 2, 0),
         |         ^~~~~~~~~~~~~
   drivers/clk/samsung/clk-fsd.c:154:9: warning: this decimal constant is unsigned only in ISO C90
     154 |         PLL_35XX_RATE(24 * MHZ, 2400000000, 200, 2, 0),
         |         ^~~~~~~~~~~~~
   In file included from include/linux/bits.h:22,
                    from include/linux/bitops.h:6,
                    from include/linux/of.h:15,
                    from include/linux/clk-provider.h:9,
                    from drivers/clk/samsung/clk-fsd.c:11:
>> include/linux/build_bug.h:16:51: warning: this decimal constant is unsigned only in ISO C90
      16 | #define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); })))
         |                                                   ^
   drivers/clk/samsung/clk-pll.h:48:9: note: in expansion of macro 'BUILD_BUG_ON_ZERO'
      48 |         BUILD_BUG_ON_ZERO(PLL_RATE(_fin, _m, _p, _s, _k, _ks) != (_fout)))
         |         ^~~~~~~~~~~~~~~~~
   drivers/clk/samsung/clk-pll.h:52:33: note: in expansion of macro 'PLL_VALID_RATE'
      52 |                 .rate   =       PLL_VALID_RATE(_fin, _rate,     \
         |                                 ^~~~~~~~~~~~~~
   drivers/clk/samsung/clk-fsd.c:154:9: note: in expansion of macro 'PLL_35XX_RATE'
     154 |         PLL_35XX_RATE(24 * MHZ, 2400000000, 200, 2, 0),
         |         ^~~~~~~~~~~~~


vim +150 drivers/clk/samsung/clk-fsd.c

   148	
   149	static const struct samsung_pll_rate_table pll_shared1_rate_table[] __initconst = {
 > 150		PLL_35XX_RATE(24 * MHZ, 2400000000, 200, 2, 0),
   151	};
   152	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org