Re: [PATCH] drivers: staging: fbtft: Removed the whitespace

From: kbuild test robot
Date: Mon Nov 09 2015 - 04:33:18 EST

Hi Anjali,

[auto build test ERROR on staging/staging-testing]
[also build test ERROR on v4.3 next-20151109]

url: https://github.com/0day-ci/linux/commits/Anjali-Menon/drivers-staging-fbtft-Removed-the-whitespace/20151109-172010
config: x86_64-randconfig-x015-201545 (attached as .config)
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64

All error/warnings (new ones prefixed by >>):

>> drivers/staging/fbtft/fbtft-bus.c:71:49: error: macro "define_fbtft_write_reg" requires 3 arguments, but only 2 given
define_fbtft_write_reg(fbtft_write_reg8_bus8, u8)
^
>> drivers/staging/fbtft/fbtft-bus.c:14:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'void'
void func(struct fbtft_par *par, int len, ...) \
^
>> drivers/staging/fbtft/fbtft-bus.c:72:1: note: in expansion of macro 'define_fbtft_write_reg'
define_fbtft_write_reg(fbtft_write_reg16_bus8, u16, cpu_to_be16)
^
drivers/staging/fbtft/fbtft-bus.c:73:52: error: macro "define_fbtft_write_reg" requires 3 arguments, but only 2 given
define_fbtft_write_reg(fbtft_write_reg16_bus16, u16)
^
drivers/staging/fbtft/fbtft-bus.c:75:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'void'
void fbtft_write_reg8_bus9(struct fbtft_par *par, int len, ...)
^

vim +/define_fbtft_write_reg +71 drivers/staging/fbtft/fbtft-bus.c

8 *
9 * void (*write_reg)(struct fbtft_par *par, int len, ...);
10 *
11 *****************************************************************************/
12
13 #define define_fbtft_write_reg(func, type, modifier) \
> 14 void func(struct fbtft_par *par, int len, ...) \
15 { \
16 va_list args; \
17 int i, ret; \
18 int offset = 0; \
19 type *buf = (type *)par->buf; \
20 \
21 if (unlikely(par->debug & DEBUG_WRITE_REGISTER)) { \
22 va_start(args, len); \
23 for (i = 0; i < len; i++) { \
24 buf[i] = (type)va_arg(args, unsigned int); \
25 } \
26 va_end(args); \
27 fbtft_par_dbg_hex(DEBUG_WRITE_REGISTER, par, par->info->device, type, buf, len, "%s: ", __func__); \
28 } \
29 \
30 va_start(args, len); \
31 \
32 if (par->startbyte) { \
33 *(u8 *)par->buf = par->startbyte; \
34 buf = (type *)(par->buf + 1); \
35 offset = 1; \
36 } \
37 \
38 *buf = modifier((type)va_arg(args, unsigned int)); \
39 if (par->gpio.dc != -1) \
40 gpio_set_value(par->gpio.dc, 0); \
41 ret = par->fbtftops.write(par, par->buf, sizeof(type) + offset); \
42 if (ret < 0) { \
43 va_end(args); \
44 dev_err(par->info->device, "%s: write() failed and returned %d\n", __func__, ret); \
45 return; \
46 } \
47 len--; \
48 \
49 if (par->startbyte) \
50 *(u8 *)par->buf = par->startbyte | 0x2; \
51 \
52 if (len) { \
53 i = len; \
54 while (i--) { \
55 *buf++ = modifier((type)va_arg(args, unsigned int)); \
56 } \
57 if (par->gpio.dc != -1) \
58 gpio_set_value(par->gpio.dc, 1); \
59 ret = par->fbtftops.write(par, par->buf, \
60 len * (sizeof(type) + offset)); \
61 if (ret < 0) { \
62 va_end(args); \
63 dev_err(par->info->device, "%s: write() failed and returned %d\n", __func__, ret); \
64 return; \
65 } \
66 } \
67 va_end(args); \
68 } \
69 EXPORT_SYMBOL(func);
70
> 71 define_fbtft_write_reg(fbtft_write_reg8_bus8, u8)
> 72 define_fbtft_write_reg(fbtft_write_reg16_bus8, u16, cpu_to_be16)
73 define_fbtft_write_reg(fbtft_write_reg16_bus16, u16)
74
75 void fbtft_write_reg8_bus9(struct fbtft_par *par, int len, ...)

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