[LTP] [PATCH] tst_device: add new tst_dev_sync

[Petr Vorel]

Hi,

> > The reason why not use tst_syscall() is that involves a new compile error
> > of tst_brk, and it can not get rid of errors only via include tst_test.h
> > file.

> The problem is that the header is used both for old and new test API, so
> until we convert the rest of the oldlib testcases we can't use anything
> from the new library there.
Good point.

> We solve that in other places by ifdefs, such as:

> #ifdef TST_TEST_H__
> 	tst_syscall(...);
> #else
> 	ltp_syscall(...);
> #endif

or something like (less #ifdef/#else branches):
#ifdef TST_TEST_H__
# define TST_SYSCALL(...) tst_syscall(##__VA_ARGS__)
#else
# define TST_SYSCALL(...) ltp_syscall(##__VA_ARGS__)
#endif

Kind regards,
Petr