Re: [PATCH] selftests/livepatch: normalize sysctl error message

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On 8/12/22 02:51, Joe Lawrence wrote:
> The livepatch kselftests rely on comparing expected and actual output
> from such commands as sysctl.  A recent commit in procps-ng v4.0.0 [1]
> changed sysctl's output to emit key pathnames like:
> 
>   sysctl: setting key "/proc/sys/kernel/ftrace_enabled": Device or resource busy
> 
> versus previous dotted output:
> 
>   sysctl: setting key "kernel.ftrace_enabled": Device or resource busy
> 
> The modification in output was later reverted [2], but since the change
> has been tagged in procps-ng v4.0.0, update the livepatch kselftest to
> handle either case.
> 
> [1] https://gitlab.com/procps-ng/procps/-/commit/6389deca5bf667f5fab5912acde78ba8e0febbc7
> [2] https://gitlab.com/procps-ng/procps/-/commit/b159c198c9160a8eb13254e2b631d0035b9b542c
> 
> Reported-by: Dennis(Zhuoheng) Li <denli@xxxxxxxxxx>
> Signed-off-by: Joe Lawrence <joe.lawrence@xxxxxxxxxx>

Reviewed-by: Kamalesh Babulal <kamalesh.babulal@xxxxxxxxxx>

> ---
>  tools/testing/selftests/livepatch/functions.sh | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tools/testing/selftests/livepatch/functions.sh b/tools/testing/selftests/livepatch/functions.sh
> index 9230b869371d..d5001c9eb72e 100644
> --- a/tools/testing/selftests/livepatch/functions.sh
> +++ b/tools/testing/selftests/livepatch/functions.sh
> @@ -86,7 +86,7 @@ function set_ftrace_enabled() {
>  
>  	if [[ "$result" != "$1" ]] ; then
>  		if [[ $can_fail -eq 1 ]] ; then
> -			echo "livepatch: $err" > /dev/kmsg
> +			echo "livepatch: $err" | sed 's#/proc/sys/kernel/#kernel.#' > /dev/kmsg
>  			return
>  		fi
>  

-- 
Thanks,
Kamalesh



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