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Message-ID: <202210141048.dlc2grZp-lkp@intel.com>
Date:   Fri, 14 Oct 2022 10:27:00 +0800
From:   kernel test robot <lkp@...el.com>
To:     Nathan Chancellor <nathan@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Matt Flax <flatmax@...tmax.com>,
        Nathan Chancellor <nathan@...nel.org>
Subject: Re: [PATCH] of: Define of_match_ptr() with PTR_IF() to avoid unused
 variable warnings

Hi Nathan,

I love your patch! Yet something to improve:

[auto build test ERROR on 4fe89d07dcc2804c8b562f6c7896a45643d34b2f]

url:    https://github.com/intel-lab-lkp/linux/commits/Nathan-Chancellor/of-Define-of_match_ptr-with-PTR_IF-to-avoid-unused-variable-warnings/20221014-035324
base:   4fe89d07dcc2804c8b562f6c7896a45643d34b2f
config: hexagon-randconfig-r045-20221012
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 791a7ae1ba3efd6bca96338e10ffde557ba83920)
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/intel-lab-lkp/linux/commit/d312b5902005bf2f4497687edc1b1df76baa337b
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Nathan-Chancellor/of-Define-of_match_ptr-with-PTR_IF-to-avoid-unused-variable-warnings/20221014-035324
        git checkout d312b5902005bf2f4497687edc1b1df76baa337b
        # 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=hexagon SHELL=/bin/bash drivers/fpga/ drivers/hwmon/pmbus/ drivers/i2c/busses/ drivers/iio/adc/ drivers/phy/motorola/ drivers/power/supply/ drivers/regulator/ drivers/rtc/ drivers/tty/serial/ drivers/usb/cdns3/ drivers/usb/dwc3/ drivers/usb/host/ drivers/usb/misc/

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 >>):

>> drivers/fpga/machxo2-spi.c:395:34: error: use of undeclared identifier 'of_match'
                   .of_match_table = of_match_ptr(of_match),
                                                  ^
   1 error generated.
--
>> drivers/fpga/altera-freeze-bridge.c:273:34: error: use of undeclared identifier 'altera_freeze_br_of_match'; did you mean 'altera_freeze_br_req_ack'?
                   .of_match_table = of_match_ptr(altera_freeze_br_of_match),
                                                  ^~~~~~~~~~~~~~~~~~~~~~~~~
                                                  altera_freeze_br_req_ack
   include/linux/of.h:848:59: note: expanded from macro 'of_match_ptr'
   #define of_match_ptr(_ptr)      PTR_IF(IS_ENABLED(CONFIG_OF), (_ptr))
                                                                  ^
   include/linux/kernel.h:57:38: note: expanded from macro 'PTR_IF'
   #define PTR_IF(cond, ptr)       ((cond) ? (ptr) : NULL)
                                              ^
   drivers/fpga/altera-freeze-bridge.c:40:12: note: 'altera_freeze_br_req_ack' declared here
   static int altera_freeze_br_req_ack(struct altera_freeze_br_data *priv,
              ^
>> drivers/fpga/altera-freeze-bridge.c:273:21: error: incompatible pointer types initializing 'const struct of_device_id *' with an expression of type 'int (*)(struct altera_freeze_br_data *, u32, u32)' (aka 'int (*)(struct altera_freeze_br_data *, unsigned int, unsigned int)') [-Werror,-Wincompatible-pointer-types]
                   .of_match_table = of_match_ptr(altera_freeze_br_of_match),
                                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/of.h:848:28: note: expanded from macro 'of_match_ptr'
   #define of_match_ptr(_ptr)      PTR_IF(IS_ENABLED(CONFIG_OF), (_ptr))
                                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/kernel.h:57:27: note: expanded from macro 'PTR_IF'
   #define PTR_IF(cond, ptr)       ((cond) ? (ptr) : NULL)
                                   ^~~~~~~~~~~~~~~~~~~~~~~
   2 errors generated.
--
>> drivers/fpga/xilinx-pr-decoupler.c:179:34: error: use of undeclared identifier 'xlnx_pr_decoupler_of_match'
                   .of_match_table = of_match_ptr(xlnx_pr_decoupler_of_match),
                                                  ^
   1 error generated.
--
>> drivers/hwmon/pmbus/pli1209bc.c:135:37: error: use of undeclared identifier 'pli1209bc_of_match'
                      .of_match_table = of_match_ptr(pli1209bc_of_match),
                                                     ^
   1 error generated.
--
>> drivers/i2c/busses/i2c-pca-platform.c:247:34: error: use of undeclared identifier 'i2c_pca_of_match_table'
                   .of_match_table = of_match_ptr(i2c_pca_of_match_table),
                                                  ^
   1 error generated.
--
>> drivers/regulator/act8865-regulator.c:670:37: error: use of undeclared identifier 'act8865_dt_ids'; did you mean 'act8865_ldo_ops'?
                   id = of_match_device(of_match_ptr(act8865_dt_ids), dev);
                                                     ^~~~~~~~~~~~~~
                                                     act8865_ldo_ops
   include/linux/of.h:848:59: note: expanded from macro 'of_match_ptr'
   #define of_match_ptr(_ptr)      PTR_IF(IS_ENABLED(CONFIG_OF), (_ptr))
                                                                  ^
   include/linux/kernel.h:57:38: note: expanded from macro 'PTR_IF'
   #define PTR_IF(cond, ptr)       ((cond) ? (ptr) : NULL)
                                              ^
   drivers/regulator/act8865-regulator.c:416:35: note: 'act8865_ldo_ops' declared here
   static const struct regulator_ops act8865_ldo_ops = {
                                     ^
>> drivers/regulator/act8865-regulator.c:670:24: error: incompatible operand types ('struct regulator_ops' and 'void *')
                   id = of_match_device(of_match_ptr(act8865_dt_ids), dev);
                                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/of.h:848:28: note: expanded from macro 'of_match_ptr'
   #define of_match_ptr(_ptr)      PTR_IF(IS_ENABLED(CONFIG_OF), (_ptr))
                                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/kernel.h:57:35: note: expanded from macro 'PTR_IF'
   #define PTR_IF(cond, ptr)       ((cond) ? (ptr) : NULL)
                                           ^ ~~~~~   ~~~~
   2 errors generated.
--
>> drivers/regulator/isl9305.c:198:34: error: use of undeclared identifier 'isl9305_dt_ids'; did you mean 'isl9305_i2c_id'?
                   .of_match_table = of_match_ptr(isl9305_dt_ids),
                                                  ^~~~~~~~~~~~~~
                                                  isl9305_i2c_id
   include/linux/of.h:848:59: note: expanded from macro 'of_match_ptr'
   #define of_match_ptr(_ptr)      PTR_IF(IS_ENABLED(CONFIG_OF), (_ptr))
                                                                  ^
   include/linux/kernel.h:57:38: note: expanded from macro 'PTR_IF'
   #define PTR_IF(cond, ptr)       ((cond) ? (ptr) : NULL)
                                              ^
   drivers/regulator/isl9305.c:188:35: note: 'isl9305_i2c_id' declared here
   static const struct i2c_device_id isl9305_i2c_id[] = {
                                     ^
>> drivers/regulator/isl9305.c:198:21: error: incompatible pointer types initializing 'const struct of_device_id *' with an expression of type 'const struct i2c_device_id *' [-Werror,-Wincompatible-pointer-types]
                   .of_match_table = of_match_ptr(isl9305_dt_ids),
                                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/of.h:848:28: note: expanded from macro 'of_match_ptr'
   #define of_match_ptr(_ptr)      PTR_IF(IS_ENABLED(CONFIG_OF), (_ptr))
                                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/kernel.h:57:27: note: expanded from macro 'PTR_IF'
   #define PTR_IF(cond, ptr)       ((cond) ? (ptr) : NULL)
                                   ^~~~~~~~~~~~~~~~~~~~~~~
   2 errors generated.
--
>> drivers/rtc/rtc-ab-eoz9.c:580:34: error: use of undeclared identifier 'abeoz9_dt_match'
                   .of_match_table = of_match_ptr(abeoz9_dt_match),
                                                  ^
   1 error generated.
--
>> drivers/rtc/rtc-abx80x.c:915:34: error: use of undeclared identifier 'abx80x_of_match'
                   .of_match_table = of_match_ptr(abx80x_of_match),
                                                  ^
   1 error generated.
--
>> drivers/rtc/rtc-ds1302.c:209:40: error: use of undeclared identifier 'ds1302_dt_ids'; did you mean 'ds1302_spi_ids'?
           .driver.of_match_table = of_match_ptr(ds1302_dt_ids),
                                                 ^~~~~~~~~~~~~
                                                 ds1302_spi_ids
   include/linux/of.h:848:59: note: expanded from macro 'of_match_ptr'
   #define of_match_ptr(_ptr)      PTR_IF(IS_ENABLED(CONFIG_OF), (_ptr))
                                                                  ^
   include/linux/kernel.h:57:38: note: expanded from macro 'PTR_IF'
   #define PTR_IF(cond, ptr)       ((cond) ? (ptr) : NULL)
                                              ^
   drivers/rtc/rtc-ds1302.c:201:35: note: 'ds1302_spi_ids' declared here
   static const struct spi_device_id ds1302_spi_ids[] = {
                                     ^
>> drivers/rtc/rtc-ds1302.c:209:27: error: incompatible pointer types initializing 'const struct of_device_id *' with an expression of type 'const struct spi_device_id *' [-Werror,-Wincompatible-pointer-types]
           .driver.of_match_table = of_match_ptr(ds1302_dt_ids),
                                    ^~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/of.h:848:28: note: expanded from macro 'of_match_ptr'
   #define of_match_ptr(_ptr)      PTR_IF(IS_ENABLED(CONFIG_OF), (_ptr))
                                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/kernel.h:57:27: note: expanded from macro 'PTR_IF'
   #define PTR_IF(cond, ptr)       ((cond) ? (ptr) : NULL)
                                   ^~~~~~~~~~~~~~~~~~~~~~~
   2 errors generated.
--
>> drivers/rtc/rtc-mcp795.c:442:36: error: use of undeclared identifier 'mcp795_of_match'
                                   .of_match_table = of_match_ptr(mcp795_of_match),
                                                                  ^
   1 error generated.
..


vim +/of_match +395 drivers/fpga/machxo2-spi.c

88fb3a00233073 Paolo Pisati 2018-04-16  391  
88fb3a00233073 Paolo Pisati 2018-04-16  392  static struct spi_driver machxo2_spi_driver = {
88fb3a00233073 Paolo Pisati 2018-04-16  393  	.driver = {
88fb3a00233073 Paolo Pisati 2018-04-16  394  		.name = "machxo2-slave-spi",
88fb3a00233073 Paolo Pisati 2018-04-16 @395  		.of_match_table = of_match_ptr(of_match),
88fb3a00233073 Paolo Pisati 2018-04-16  396  	},
88fb3a00233073 Paolo Pisati 2018-04-16  397  	.probe = machxo2_spi_probe,
88fb3a00233073 Paolo Pisati 2018-04-16  398  	.id_table = lattice_ids,
88fb3a00233073 Paolo Pisati 2018-04-16  399  };
88fb3a00233073 Paolo Pisati 2018-04-16  400  

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

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