linux-kernel - Re: [PATCH 2/2] selftests: firmware: skip unsupported custom firmware fallback tests

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Wed, 8 Nov 2017 09:34:50 -0700
From:   Shuah Khan <shuah@...nel.org>
To:     Amit Pundir <amit.pundir@...aro.org>,
        kselftest <linux-kselftest@...r.kernel.org>,
        lkml <linux-kernel@...r.kernel.org>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Luis R . Rodriguez" <mcgrof@...nel.org>,
        Masami Hiramatsu <masami.hiramatsu@...aro.org>,
        Sumit Semwal <sumit.semwal@...aro.org>,
        Shuah Khan <shuahkh@....samsung.com>,
        Shuah Khan <shuah@...nel.org>
Subject: Re: [PATCH 2/2] selftests: firmware: skip unsupported custom firmware
 fallback tests

On 11/08/2017 04:47 AM, Amit Pundir wrote:
> Ignore custom firmware loading and cancellation tests on older
> kernel releases, which do not support this feature.
> 
> Signed-off-by: Amit Pundir <amit.pundir@...aro.org>
> ---
>  tools/testing/selftests/firmware/fw_fallback.sh | 38 +++++++++++++++++--------
>  1 file changed, 26 insertions(+), 12 deletions(-)
> 
> diff --git a/tools/testing/selftests/firmware/fw_fallback.sh b/tools/testing/selftests/firmware/fw_fallback.sh
> index a52a3bab532b..72858c921eed 100755
> --- a/tools/testing/selftests/firmware/fw_fallback.sh
> +++ b/tools/testing/selftests/firmware/fw_fallback.sh
> @@ -86,6 +86,11 @@ load_fw_cancel()
>  
>  load_fw_custom()
>  {
> +	if [ ! -e "$DIR"/trigger_custom_fallback ]; then
> +		echo "$0: custom fallback loading trigger not supported" >&2

Please make this message consistent with the rest when a test is ignored
as in the following to make it clear what is being done.

fw_fallback.sh:	echo "usermode helper disabled so ignoring test"
fw_filesystem.sh:		echo "Configuration triggers not present, ignoring test"

> +		return 1
> +	fi
> +
>  	local name="$1"
>  	local file="$2"
>  
> @@ -108,11 +113,17 @@ load_fw_custom()
>  
>  	# Wait for request to finish.
>  	wait
> +	return 0
>  }
>  
>  
>  load_fw_custom_cancel()
>  {
> +	if [ ! -e "$DIR"/trigger_custom_fallback ]; then
> +		echo "$0: cancelling custom fallback trigger not supported" >&2

Please make this message consistent with the rest when a test is ignored
as in the following to make it clear what is being done.

fw_fallback.sh:	echo "usermode helper disabled so ignoring test"
fw_filesystem.sh:		echo "Configuration triggers not present, ignoring test"

If I missed ponting out any other instances of ignoring, please do the
same for them.

> +		return 1
> +	fi
> +
>  	local name="$1"
>  	local file="$2"
>  
> @@ -133,6 +144,7 @@ load_fw_custom_cancel()
>  
>  	# Wait for request to finish.
>  	wait
> +	return 0
>  }
>  
>  load_fw_fallback_with_child()
> @@ -227,20 +239,22 @@ else
>  	echo "$0: cancelling fallback mechanism works"
>  fi
>  
> -load_fw_custom "$NAME" "$FW"
> -if ! diff -q "$FW" /dev/test_firmware >/dev/null ; then
> -	echo "$0: firmware was not loaded" >&2
> -	exit 1
> -else
> -	echo "$0: custom fallback loading mechanism works"
> +if load_fw_custom "$NAME" "$FW" ; then
> +	if ! diff -q "$FW" /dev/test_firmware >/dev/null ; then
> +		echo "$0: firmware was not loaded" >&2
> +		exit 1
> +	else
> +		echo "$0: custom fallback loading mechanism works"
> +	fi
>  fi
>  
> -load_fw_custom_cancel "nope-$NAME" "$FW"
> -if diff -q "$FW" /dev/test_firmware >/dev/null ; then
> -	echo "$0: firmware was expected to be cancelled" >&2
> -	exit 1
> -else
> -	echo "$0: cancelling custom fallback mechanism works"
> +if load_fw_custom_cancel "nope-$NAME" "$FW" ; then
> +	if diff -q "$FW" /dev/test_firmware >/dev/null ; then
> +		echo "$0: firmware was expected to be cancelled" >&2
> +		exit 1
> +	else
> +		echo "$0: cancelling custom fallback mechanism works"
> +	fi
>  fi
>  
>  set +e
> 

thanks,
-- Shuah