Re: [PATCH] Staging: fbtft: fbtft-bus: fixed extra space and parenthesis issue

kernel test robot
2023-04-08T10:41:04Z

Hi Deepanshu,

kernel test robot noticed the following build errors:

[auto build test ERROR on staging/staging-testing]

url: https://github.com/intel-lab-lkp/linux/commits/Deepanshu-Kartikey/Staging-fbtft-fbtft-bus-fixed-extra-space-and-parenthesis-issue/20230408-130429
patch link: https://lore.kernel.org/r/20230408050323.70919-1-kartikey406%40gmail.com
patch subject: [PATCH] Staging: fbtft: fbtft-bus: fixed extra space and parenthesis issue
config: i386-randconfig-a002-20230403 (https://download.01.org/0day-ci/archive/20230408/202304081830.7kKqUkLL-lkp@intel.com/config)
compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1)
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/a5c79ed6665465f3101e8251ca030a600cf1ea88
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Deepanshu-Kartikey/Staging-fbtft-fbtft-bus-fixed-extra-space-and-parenthesis-issue/20230408-130429
git checkout a5c79ed6665465f3101e8251ca030a600cf1ea88
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202304081830.7kKqUkLL-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/staging/fbtft/fbtft-bus.c:65:53: error: too few arguments provided to function-like macro invocation
define_fbtft_write_reg(fbtft_write_reg8_bus8, u8, u8)
^
drivers/staging/fbtft/fbtft-bus.c:14:9: note: macro 'define_fbtft_write_reg' defined here
#define define_fbtft_write_reg(func, buffer_type, data_type, modifier) \
^
>> drivers/staging/fbtft/fbtft-bus.c:65:1: error: unknown type name 'define_fbtft_write_reg'
define_fbtft_write_reg(fbtft_write_reg8_bus8, u8, u8)
^
drivers/staging/fbtft/fbtft-bus.c:67:57: error: too few arguments provided to function-like macro invocation
define_fbtft_write_reg(fbtft_write_reg16_bus16, u16, u16)
^
drivers/staging/fbtft/fbtft-bus.c:14:9: note: macro 'define_fbtft_write_reg' defined here
#define define_fbtft_write_reg(func, buffer_type, data_type, modifier) \
^
drivers/staging/fbtft/fbtft-bus.c:67:1: error: unknown type name 'define_fbtft_write_reg'
define_fbtft_write_reg(fbtft_write_reg16_bus16, u16, u16)
^
>> drivers/staging/fbtft/fbtft-bus.c:86:3: error: non-void function 'fbtft_write_reg8_bus9' should return a value [-Wreturn-type]
return;
^
drivers/staging/fbtft/fbtft-bus.c:109:3: error: non-void function 'fbtft_write_reg8_bus9' should return a value [-Wreturn-type]
return;
^
6 errors generated.

vim +65 drivers/staging/fbtft/fbtft-bus.c

64
> 65 define_fbtft_write_reg(fbtft_write_reg8_bus8, u8, u8)
66 define_fbtft_write_reg(fbtft_write_reg16_bus8, __be16, u16, cpu_to_be16)
> 67 define_fbtft_write_reg(fbtft_write_reg16_bus16, u16, u16)
68
69 void fbtft_write_reg8_bus9(struct fbtft_par *par, int len, ...)
70 {
71 va_list args;
72 int i, ret;
73 int pad = 0;
74 u16 *buf = (u16 *)par->buf;
75
76 if (unlikely(par->debug & DEBUG_WRITE_REGISTER)) {
77 va_start(args, len);
78 for (i = 0; i < len; i++)
79 *(((u8 *)buf) + i) = (u8)va_arg(args, unsigned int);
80 va_end(args);
81 fbtft_par_dbg_hex(DEBUG_WRITE_REGISTER, par,
82 par->info->device, u8, buf, len, "%s: ",
83 __func__);
84 }
85 if (len <= 0)
> 86 return;
87
88 if (par->spi && (par->spi->bits_per_word == 8)) {
89 /* we're emulating 9-bit, pad start of buffer with no-ops
90 * (assuming here that zero is a no-op)
91 */
92 pad = (len % 4) ? 4 - (len % 4) : 0;
93 for (i = 0; i < pad; i++)
94 *buf++ = 0x000;
95 }
96
97 va_start(args, len);
98 *buf++ = (u8)va_arg(args, unsigned int);
99 i = len - 1;
100 while (i--) {
101 *buf = (u8)va_arg(args, unsigned int);
102 *buf++ |= 0x100; /* dc=1 */
103 }
104 va_end(args);
105 ret = par->fbtftops.write(par, par->buf, (len + pad) * sizeof(u16));
106 if (ret < 0) {
107 dev_err(par->info->device,
108 "write() failed and returned %d\n", ret);
109 return;
110 }
111 }
112 EXPORT_SYMBOL(fbtft_write_reg8_bus9);
113

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0-DAY CI Kernel Test Service