linux-kernel - [superna9999:amlogic/v5.18/g12-dsi-wip 11/14] drivers/gpu/drm/meson/meson_venc.c:1595:24: error: implicit declaration of function 'FIELD

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Date:   Mon, 31 Jan 2022 15:00:26 +0800
From:   kernel test robot <lkp@...el.com>
To:     Neil Armstrong <narmstrong@...libre.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [superna9999:amlogic/v5.18/g12-dsi-wip 11/14]
 drivers/gpu/drm/meson/meson_venc.c:1595:24: error: implicit declaration of
 function 'FIELD_PREP'

tree:   https://github.com/superna9999/linux amlogic/v5.18/g12-dsi-wip
head:   fbcc0a7f53880919dc415da44339313dd59768f0
commit: edf28ef6ab9df27f29b301443df825cf6a5ce233 [11/14] drm/meson: venc: add ENCL encoder setup for MIPI-DSI output
config: arm-allyesconfig (https://download.01.org/0day-ci/archive/20220131/202201311418.VbkoxAhu-lkp@intel.com/config)
compiler: arm-linux-gnueabi-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/superna9999/linux/commit/edf28ef6ab9df27f29b301443df825cf6a5ce233
        git remote add superna9999 https://github.com/superna9999/linux
        git fetch --no-tags superna9999 amlogic/v5.18/g12-dsi-wip
        git checkout edf28ef6ab9df27f29b301443df825cf6a5ce233
        # 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=arm SHELL=/bin/bash

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

All errors (new ones prefixed by >>):

   In file included from include/linux/swab.h:5,
                    from include/uapi/linux/byteorder/big_endian.h:13,
                    from include/linux/byteorder/big_endian.h:5,
                    from arch/arm/include/uapi/asm/byteorder.h:20,
                    from include/asm-generic/bitops/le.h:7,
                    from arch/arm/include/asm/bitops.h:268,
                    from include/linux/bitops.h:33,
                    from include/linux/kernel.h:13,
                    from include/linux/iopoll.h:9,
                    from drivers/gpu/drm/meson/meson_venc.c:9:
   drivers/gpu/drm/meson/meson_venc.c: In function 'meson_encl_set_gamma_table':
>> drivers/gpu/drm/meson/meson_venc.c:1595:24: error: implicit declaration of function 'FIELD_PREP' [-Werror=implicit-function-declaration]
    1595 |                        FIELD_PREP(L_GAMMA_ADDR_PORT_ADDR, 0),
         |                        ^~~~~~~~~~
   include/uapi/linux/swab.h:115:54: note: in definition of macro '__swab32'
     115 | #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
         |                                                      ^
   include/linux/byteorder/generic.h:88:21: note: in expansion of macro '__cpu_to_le32'
      88 | #define cpu_to_le32 __cpu_to_le32
         |                     ^~~~~~~~~~~~~
   drivers/gpu/drm/meson/meson_venc.c:1594:9: note: in expansion of macro 'writel_relaxed'
    1594 |         writel_relaxed(L_GAMMA_ADDR_PORT_AUTO_INC | rgb_mask |
         |         ^~~~~~~~~~~~~~
   cc1: some warnings being treated as errors


vim +/FIELD_PREP +1595 drivers/gpu/drm/meson/meson_venc.c

  1579	
  1580	static void meson_encl_set_gamma_table(struct meson_drm *priv, u16 *data,
  1581					       u32 rgb_mask)
  1582	{
  1583		int i, ret;
  1584		u32 reg;
  1585	
  1586		writel_bits_relaxed(L_GAMMA_CNTL_PORT_EN, 0,
  1587				    priv->io_base + _REG(L_GAMMA_CNTL_PORT));
  1588	
  1589		ret = readl_relaxed_poll_timeout(priv->io_base + _REG(L_GAMMA_CNTL_PORT),
  1590						 reg, reg & L_GAMMA_CNTL_PORT_ADR_RDY, 10, 10000);
  1591		if (ret)
  1592			pr_warn("%s: GAMMA ADR_RDY timeout\n", __func__);
  1593	
  1594		writel_relaxed(L_GAMMA_ADDR_PORT_AUTO_INC | rgb_mask |
> 1595			       FIELD_PREP(L_GAMMA_ADDR_PORT_ADDR, 0),
  1596			       priv->io_base + _REG(L_GAMMA_ADDR_PORT));
  1597	
  1598		for (i = 0; i < 256; i++) {
  1599			ret = readl_relaxed_poll_timeout(priv->io_base + _REG(L_GAMMA_CNTL_PORT),
  1600							 reg, reg & L_GAMMA_CNTL_PORT_WR_RDY,
  1601							 10, 10000);
  1602			if (ret)
  1603				pr_warn_once("%s: GAMMA WR_RDY timeout\n", __func__);
  1604	
  1605			writel_relaxed(data[i], priv->io_base + _REG(L_GAMMA_DATA_PORT));
  1606		}
  1607	
  1608		ret = readl_relaxed_poll_timeout(priv->io_base + _REG(L_GAMMA_CNTL_PORT),
  1609						 reg, reg & L_GAMMA_CNTL_PORT_ADR_RDY, 10, 10000);
  1610		if (ret)
  1611			pr_warn("%s: GAMMA ADR_RDY timeout\n", __func__);
  1612	
  1613		writel_relaxed(L_GAMMA_ADDR_PORT_AUTO_INC | rgb_mask |
  1614			       FIELD_PREP(L_GAMMA_ADDR_PORT_ADDR, 0x23),
  1615			       priv->io_base + _REG(L_GAMMA_ADDR_PORT));
  1616	}
  1617	

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