Re: [PATCH v3 07/12] clk: rp1: Add support for clocks provided by RP1

kernel test robot <lkp@xxxxxxxxx> · Fri, 1 Nov 2024 12:14:33 +0800

Hi Andrea,

kernel test robot noticed the following build errors:

[auto build test ERROR on clk/clk-next]
[also build test ERROR on char-misc/char-misc-testing char-misc/char-misc-next char-misc/char-misc-linus robh/for-next linus/master v6.12-rc5]
[cannot apply to next-20241031]
[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#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Andrea-della-Porta/dt-bindings-clock-Add-RaspberryPi-RP1-clock-bindings/20241028-221122
base:   https://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git clk-next
patch link:    https://lore.kernel.org/r/c20e3d6d87c71691b149cdeeafc94009953346b2.1730123575.git.andrea.porta%40suse.com
patch subject: [PATCH v3 07/12] clk: rp1: Add support for clocks provided by RP1
config: hexagon-allmodconfig (https://download.01.org/0day-ci/archive/20241101/202411011129.wmWcuU9Z-lkp@xxxxxxxxx/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 639a7ac648f1e50ccd2556e17d401c04f9cce625)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241101/202411011129.wmWcuU9Z-lkp@xxxxxxxxx/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 <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202411011129.wmWcuU9Z-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

   In file included from drivers/clk/clk-rp1.c:9:
   In file included from include/linux/regmap.h:20:
   In file included from include/linux/iopoll.h:14:
   In file included from include/linux/io.h:14:
   In file included from arch/hexagon/include/asm/io.h:328:
   include/asm-generic/io.h:548:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     548 |         val = __raw_readb(PCI_IOBASE + addr);
         |                           ~~~~~~~~~~ ^
   include/asm-generic/io.h:561:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     561 |         val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
         |                                                         ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
      37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
         |                                                   ^
   In file included from drivers/clk/clk-rp1.c:9:
   In file included from include/linux/regmap.h:20:
   In file included from include/linux/iopoll.h:14:
   In file included from include/linux/io.h:14:
   In file included from arch/hexagon/include/asm/io.h:328:
   include/asm-generic/io.h:574:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     574 |         val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
         |                                                         ~~~~~~~~~~ ^
   include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
      35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
         |                                                   ^
   In file included from drivers/clk/clk-rp1.c:9:
   In file included from include/linux/regmap.h:20:
   In file included from include/linux/iopoll.h:14:
   In file included from include/linux/io.h:14:
   In file included from arch/hexagon/include/asm/io.h:328:
   include/asm-generic/io.h:585:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     585 |         __raw_writeb(value, PCI_IOBASE + addr);
         |                             ~~~~~~~~~~ ^
   include/asm-generic/io.h:595:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     595 |         __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
         |                                                       ~~~~~~~~~~ ^
   include/asm-generic/io.h:605:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
     605 |         __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
         |                                                       ~~~~~~~~~~ ^
>> drivers/clk/clk-rp1.c:621:2: error: call to undeclared function 'FIELD_PREP'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     621 |         FIELD_SET(prim, PLL_PRIM_DIV1_MASK, prim_div1);
         |         ^
   drivers/clk/clk-rp1.c:399:12: note: expanded from macro 'FIELD_SET'
     399 |         (_reg) |= FIELD_PREP(mask, (_val));     \
         |                   ^
   drivers/clk/clk-rp1.c:622:2: error: call to undeclared function 'FIELD_PREP'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     622 |         FIELD_SET(prim, PLL_PRIM_DIV2_MASK, prim_div2);
         |         ^
   drivers/clk/clk-rp1.c:399:12: note: expanded from macro 'FIELD_SET'
     399 |         (_reg) |= FIELD_PREP(mask, (_val));     \
         |                   ^
   drivers/clk/clk-rp1.c:767:2: error: call to undeclared function 'FIELD_PREP'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     767 |         FIELD_SET(sec, PLL_SEC_DIV_MASK, div);
         |         ^
   drivers/clk/clk-rp1.c:399:12: note: expanded from macro 'FIELD_SET'
     399 |         (_reg) |= FIELD_PREP(mask, (_val));     \
         |                   ^
   drivers/clk/clk-rp1.c:948:3: error: call to undeclared function 'FIELD_PREP'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     948 |                 FIELD_SET(ctrl, CLK_CTRL_AUXSRC_MASK, index - data->num_std_parents);
         |                 ^
   drivers/clk/clk-rp1.c:399:12: note: expanded from macro 'FIELD_SET'
     399 |         (_reg) |= FIELD_PREP(mask, (_val));     \
         |                   ^
   6 warnings and 4 errors generated.

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for MODVERSIONS
   Depends on [n]: MODULES [=y] && !COMPILE_TEST [=y]
   Selected by [y]:
   - RANDSTRUCT_FULL [=y] && (CC_HAS_RANDSTRUCT [=y] || GCC_PLUGINS [=n]) && MODULES [=y]
   WARNING: unmet direct dependencies detected for GET_FREE_REGION
   Depends on [n]: SPARSEMEM [=n]
   Selected by [m]:
   - RESOURCE_KUNIT_TEST [=m] && RUNTIME_TESTING_MENU [=y] && KUNIT [=m]

vim +/FIELD_PREP +621 drivers/clk/clk-rp1.c

   607	
   608	static int rp1_pll_set_rate(struct clk_hw *hw,
   609				    unsigned long rate, unsigned long parent_rate)
   610	{
   611		struct rp1_clk_desc *pll = container_of(hw, struct rp1_clk_desc, hw);
   612		struct rp1_clockman *clockman = pll->clockman;
   613		const struct rp1_pll_data *data = pll->data;
   614	
   615		u32 prim, prim_div1, prim_div2;
   616	
   617		get_pll_prim_dividers(rate, parent_rate, &prim_div1, &prim_div2);
   618	
   619		spin_lock(&clockman->regs_lock);
   620		prim = clockman_read(clockman, data->ctrl_reg);
 > 621		FIELD_SET(prim, PLL_PRIM_DIV1_MASK, prim_div1);
   622		FIELD_SET(prim, PLL_PRIM_DIV2_MASK, prim_div2);
   623		clockman_write(clockman, data->ctrl_reg, prim);
   624		spin_unlock(&clockman->regs_lock);
   625	
   626		return 0;
   627	}
   628	

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