Re: [LTP] [PATCH] LTP cacheflush01 add arm variant

[Jan Stancek <jstancek@redhat.com>]

----- Original Message -----
> From: "Maxim Uvarov" <maxim.uvarov@linaro.org>
> To: ltp-list@lists.sourceforge.net
> Cc: linaro-networking@linaro.org, "Maxim Uvarov" <maxim.uvarov@linaro.com>
> Sent: Friday, 4 October, 2013 12:17:12 PM
> Subject: [LTP] [PATCH] LTP cacheflush01 add arm variant
> 
> Cache flush on arm provided via
> __ARM_NR_cacheflush(unsigned long start, unsigned long end, int flags)
> defined in ./arch/arm/kernel/traps.c.
> Flags are not used, providing 0 there.
> 
> Signed-off-by: Maxim Uvarov <maxim.uvarov@linaro.com>

Hi,

looks good to me. I was thinking about getting rid of that ifdef,
but I'm not sure it's worth the trouble for such trivial testcase.

Small nits (related to original code):
- no need for brackets for single statement
- it would be helpful to see the errno in case of failure:
  tst_resm(TFAIL | TTERRNO, "failed with unexpected errno");
- "malloc failed" flags should be TFAIL | TERRNO
- tst_tmpdir()/tst_rmdir() is not needed
- unnecessary comments can be removed

Regards,
Jan

> ---
>  .../kernel/syscalls/cacheflush/cacheflush01.c      |    9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/testcases/kernel/syscalls/cacheflush/cacheflush01.c
> b/testcases/kernel/syscalls/cacheflush/cacheflush01.c
> index 9c02f0a..fae51b4 100644
> --- a/testcases/kernel/syscalls/cacheflush/cacheflush01.c
> +++ b/testcases/kernel/syscalls/cacheflush/cacheflush01.c
> @@ -137,6 +137,14 @@ int main(int ac, char **av)
>  	}
>  
>  	/* Invokes cacheflush() with proper parameters */
> +#if defined(__arm__)
> +	TEST(ltp_syscall(__ARM_NR_cacheflush, addr, addr + getpagesize(), 0));
> +	if (TEST_RETURN == 0) {
> +		tst_resm(TPASS, "passed with no errno");
> +	} else {
> +		tst_resm(TFAIL, "failed with unexpected errno");
> +	}
> +#else
>  	TEST(ltp_syscall(__NR_cacheflush, addr, getpagesize(), ICACHE));
>  	if (TEST_RETURN == 0) {
>  		tst_resm(TPASS, "passed with no errno");
> @@ -157,6 +165,7 @@ int main(int ac, char **av)
>  	} else {
>  		tst_resm(TFAIL, "failed with unexpected errno");
>  	}
> +#endif
>  
>  	cleanup();
>  	tst_exit();
> --
> 1.7.9.5
> 
> 
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