Re: [PATCH] sysctl: kselftests: use kernel module instead of built-in

2018-09-05 Thread lei yang




On 2018年09月06日 00:47, Shuah Khan wrote:

On 09/04/2018 08:20 PM, Lei Yang wrote:

It uses modprobe $TEST_DRIVER in sysctl.sh, so update
config to use "m" instead

Signed-off-by: Lei Yang 
---
  tools/testing/selftests/sysctl/config | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/sysctl/config 
b/tools/testing/selftests/sysctl/config
index 6ca1480..fc263ef 100644
--- a/tools/testing/selftests/sysctl/config
+++ b/tools/testing/selftests/sysctl/config
@@ -1 +1 @@
-CONFIG_TEST_SYSCTL=y
+CONFIG_TEST_SYSCTL=m


What happens if it is a built-in? Can you elaborate in the changelog

On that note we might have other cases that do modprobe in scripts and
run into the same issue you are trying to solve. :)


I double-checked again, found that it doesn't work on either with 
built-in or kernel module
if it's built-in, modprobe test_sysctl still return 0, so it doesn't 
matter it's a built-in or module.


but the problem is that test_modprobe check module load before modprobe 
execute , I'll sent a V2 patch to fix this and keep its build-in config 
untouched



if changes nothing

1) when  CONFIG_TEST_SYSCTL=y
root@intel-x86-64:/tmp/sysctl# ./sysctl.sh
Checking production write strict setting ... ok
./sysctl.sh: /sys/module/test_sysctl/ not present
You must have the following enabled in your kernel:
CONFIG_TEST_SYSCTL=y
root@intel-x86-64:/tmp/sysctl# zcat /proc/config.gz |grep TEST_SYS
CONFIG_TEST_SYSCTL=y



2) when CONFIG_TEST_SYSCTL=m
root@intel-x86-64:/tmp/sysctl# ./sysctl.sh
Checking production write strict setting ... ok
./sysctl.sh: /sys/module/test_sysctl/ not present
You must have the following enabled in your kernel:
CONFIG_TEST_SYSCTL=y
root@intel-x86-64:/tmp/sysctl# zcat /proc/config.gz |grep TEST_SYS
CONFIG_TEST_SYSCTL=m


Lei


thanks,



-- Shuah




Re: [PATCH] sysctl: kselftests: use kernel module instead of built-in

2018-09-05 Thread lei yang




On 2018年09月06日 00:47, Shuah Khan wrote:

On 09/04/2018 08:20 PM, Lei Yang wrote:

It uses modprobe $TEST_DRIVER in sysctl.sh, so update
config to use "m" instead

Signed-off-by: Lei Yang 
---
  tools/testing/selftests/sysctl/config | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/sysctl/config 
b/tools/testing/selftests/sysctl/config
index 6ca1480..fc263ef 100644
--- a/tools/testing/selftests/sysctl/config
+++ b/tools/testing/selftests/sysctl/config
@@ -1 +1 @@
-CONFIG_TEST_SYSCTL=y
+CONFIG_TEST_SYSCTL=m


What happens if it is a built-in? Can you elaborate in the changelog

On that note we might have other cases that do modprobe in scripts and
run into the same issue you are trying to solve. :)


I double-checked again, found that it doesn't work on either with 
built-in or kernel module
if it's built-in, modprobe test_sysctl still return 0, so it doesn't 
matter it's a built-in or module.


but the problem is that test_modprobe check module load before modprobe 
execute , I'll sent a V2 patch to fix this and keep its build-in config 
untouched



if changes nothing

1) when  CONFIG_TEST_SYSCTL=y
root@intel-x86-64:/tmp/sysctl# ./sysctl.sh
Checking production write strict setting ... ok
./sysctl.sh: /sys/module/test_sysctl/ not present
You must have the following enabled in your kernel:
CONFIG_TEST_SYSCTL=y
root@intel-x86-64:/tmp/sysctl# zcat /proc/config.gz |grep TEST_SYS
CONFIG_TEST_SYSCTL=y



2) when CONFIG_TEST_SYSCTL=m
root@intel-x86-64:/tmp/sysctl# ./sysctl.sh
Checking production write strict setting ... ok
./sysctl.sh: /sys/module/test_sysctl/ not present
You must have the following enabled in your kernel:
CONFIG_TEST_SYSCTL=y
root@intel-x86-64:/tmp/sysctl# zcat /proc/config.gz |grep TEST_SYS
CONFIG_TEST_SYSCTL=m


Lei


thanks,



-- Shuah




Re: [PATCH] sysctl: kselftests: use kernel module instead of built-in

2018-09-05 Thread Shuah Khan
On 09/04/2018 08:20 PM, Lei Yang wrote:
> It uses modprobe $TEST_DRIVER in sysctl.sh, so update
> config to use "m" instead
> 
> Signed-off-by: Lei Yang 
> ---
>  tools/testing/selftests/sysctl/config | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tools/testing/selftests/sysctl/config 
> b/tools/testing/selftests/sysctl/config
> index 6ca1480..fc263ef 100644
> --- a/tools/testing/selftests/sysctl/config
> +++ b/tools/testing/selftests/sysctl/config
> @@ -1 +1 @@
> -CONFIG_TEST_SYSCTL=y
> +CONFIG_TEST_SYSCTL=m
> 

What happens if it is a built-in? Can you elaborate in the changelog

On that note we might have other cases that do modprobe in scripts and
run into the same issue you are trying to solve. :)

thanks,
-- Shuah


Re: [PATCH] sysctl: kselftests: use kernel module instead of built-in

2018-09-05 Thread Shuah Khan
On 09/04/2018 08:20 PM, Lei Yang wrote:
> It uses modprobe $TEST_DRIVER in sysctl.sh, so update
> config to use "m" instead
> 
> Signed-off-by: Lei Yang 
> ---
>  tools/testing/selftests/sysctl/config | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tools/testing/selftests/sysctl/config 
> b/tools/testing/selftests/sysctl/config
> index 6ca1480..fc263ef 100644
> --- a/tools/testing/selftests/sysctl/config
> +++ b/tools/testing/selftests/sysctl/config
> @@ -1 +1 @@
> -CONFIG_TEST_SYSCTL=y
> +CONFIG_TEST_SYSCTL=m
> 

What happens if it is a built-in? Can you elaborate in the changelog

On that note we might have other cases that do modprobe in scripts and
run into the same issue you are trying to solve. :)

thanks,
-- Shuah


[PATCH] sysctl: kselftests: use kernel module instead of built-in

2018-09-04 Thread Lei Yang
It uses modprobe $TEST_DRIVER in sysctl.sh, so update
config to use "m" instead

Signed-off-by: Lei Yang 
---
 tools/testing/selftests/sysctl/config | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/sysctl/config 
b/tools/testing/selftests/sysctl/config
index 6ca1480..fc263ef 100644
--- a/tools/testing/selftests/sysctl/config
+++ b/tools/testing/selftests/sysctl/config
@@ -1 +1 @@
-CONFIG_TEST_SYSCTL=y
+CONFIG_TEST_SYSCTL=m
-- 
1.9.1



[PATCH] sysctl: kselftests: use kernel module instead of built-in

2018-09-04 Thread Lei Yang
It uses modprobe $TEST_DRIVER in sysctl.sh, so update
config to use "m" instead

Signed-off-by: Lei Yang 
---
 tools/testing/selftests/sysctl/config | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/sysctl/config 
b/tools/testing/selftests/sysctl/config
index 6ca1480..fc263ef 100644
--- a/tools/testing/selftests/sysctl/config
+++ b/tools/testing/selftests/sysctl/config
@@ -1 +1 @@
-CONFIG_TEST_SYSCTL=y
+CONFIG_TEST_SYSCTL=m
-- 
1.9.1