[LTP] [PATCH v8 4/4] Extend ioctl02 to test termio and termios

[Petr Vorel]

Hi Marius

...
> -	if (termio.c_iflag != (BRKINT | IGNPAR | INPCK | ISTRIP
> -		 | ICRNL | IUCLC | IXON | IXANY | IXOFF)) {
> -		tst_res(TFAIL, "iflag has incorrect value. %o",
> -			 termio.c_iflag);
> -		flag++;

> +#define CMP_ATTR(tcexp, tcval, attr) \
> +	do { \
> +		if ((tcval).attr != (tcexp).attr) { \
> +			tst_res(TINFO, #attr " has incorrect value %o", \
> +				(tcval).attr); \
> +			flag++; \
> +		} \
> +	} while (0)
> +
> +#define CECK_CONTROL_CHARS(tcval) \
> +	for (i = 0; i < NCC; i++) { \
> +		if (i == VEOL2) { \
> +			if (!(tcval).c_cc[i]) { \
> +				continue; \
> +			} else { \
> +				tst_res(TFAIL, "control char %d has " \
> +					 "incorrect value %d", i, (tcval).c_cc[i]); \
> +				flag++; \
> +				continue; \
> +			} \
> +		} \
> +		if ((tcval).c_cc[i] != CSTART) { \
> +			tst_res(TFAIL, "control char %d has incorrect " \
> +				 "value %d.", i, (tcval).c_cc[i]); \
> +			flag++; \
> +		} \
>  	}

Could be this written as a function? Or what is the benefit of it?  Because
readability suffers. (We prefer avoid macros, tst_test_macros.h is the exception
due using kernel syscalls, but readability also suffers).

I know you mentioned C++ in cover letter, but please no C++ :).

Kind regards,
Petr