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* [PATCH] staging: lustre: Remove redundant code
@ 2017-03-24 11:39 Arushi Singhal
  2017-03-24 13:44   ` [lustre-devel] " Greg Kroah-Hartman
  0 siblings, 1 reply; 5+ messages in thread
From: Arushi Singhal @ 2017-03-24 11:39 UTC (permalink / raw)
  To: oleg.drokin
  Cc: Andreas Dilger, James Simmons, Greg Kroah-Hartman, lustre-devel,
	devel, linux-kernel, outreachy-kernel

Remove the code which do not have any value.

Signed-off-by: Arushi Singhal <arushisinghal19971997@gmail.com>
---
 drivers/staging/lustre/lnet/lnet/net_fault.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/staging/lustre/lnet/lnet/net_fault.c b/drivers/staging/lustre/lnet/lnet/net_fault.c
index 18183cbb9859..b60261db9e67 100644
--- a/drivers/staging/lustre/lnet/lnet/net_fault.c
+++ b/drivers/staging/lustre/lnet/lnet/net_fault.c
@@ -997,11 +997,6 @@ lnet_fault_ctl(int opc, struct libcfs_ioctl_data *data)
 int
 lnet_fault_init(void)
 {
-	BUILD_BUG_ON(LNET_PUT_BIT != 1 << LNET_MSG_PUT);
-	BUILD_BUG_ON(LNET_ACK_BIT != 1 << LNET_MSG_ACK);
-	BUILD_BUG_ON(LNET_GET_BIT != 1 << LNET_MSG_GET);
-	BUILD_BUG_ON(LNET_REPLY_BIT != 1 << LNET_MSG_REPLY);
-
 	mutex_init(&delay_dd.dd_mutex);
 	spin_lock_init(&delay_dd.dd_lock);
 	init_waitqueue_head(&delay_dd.dd_waitq);
-- 
2.11.0



^ permalink raw reply related	[flat|nested] 5+ messages in thread

* Re: [PATCH] staging: lustre: Remove redundant code
  2017-03-24 11:39 [PATCH] staging: lustre: Remove redundant code Arushi Singhal
@ 2017-03-24 13:44   ` Greg Kroah-Hartman
  0 siblings, 0 replies; 5+ messages in thread
From: Greg Kroah-Hartman @ 2017-03-24 13:44 UTC (permalink / raw)
  To: Arushi Singhal
  Cc: oleg.drokin, Andreas Dilger, James Simmons, lustre-devel, devel,
	linux-kernel, outreachy-kernel

On Fri, Mar 24, 2017 at 05:09:53PM +0530, Arushi Singhal wrote:
> Remove the code which do not have any value.
> 
> Signed-off-by: Arushi Singhal <arushisinghal19971997@gmail.com>
> ---
>  drivers/staging/lustre/lnet/lnet/net_fault.c | 5 -----
>  1 file changed, 5 deletions(-)
> 
> diff --git a/drivers/staging/lustre/lnet/lnet/net_fault.c b/drivers/staging/lustre/lnet/lnet/net_fault.c
> index 18183cbb9859..b60261db9e67 100644
> --- a/drivers/staging/lustre/lnet/lnet/net_fault.c
> +++ b/drivers/staging/lustre/lnet/lnet/net_fault.c
> @@ -997,11 +997,6 @@ lnet_fault_ctl(int opc, struct libcfs_ioctl_data *data)
>  int
>  lnet_fault_init(void)
>  {
> -	BUILD_BUG_ON(LNET_PUT_BIT != 1 << LNET_MSG_PUT);
> -	BUILD_BUG_ON(LNET_ACK_BIT != 1 << LNET_MSG_ACK);
> -	BUILD_BUG_ON(LNET_GET_BIT != 1 << LNET_MSG_GET);
> -	BUILD_BUG_ON(LNET_REPLY_BIT != 1 << LNET_MSG_REPLY);

Why does this not have any value?  How are you ensuring that these
requirements are now being met?

thanks,

greg k-h


^ permalink raw reply	[flat|nested] 5+ messages in thread

* [lustre-devel] [PATCH] staging: lustre: Remove redundant code
@ 2017-03-24 13:44   ` Greg Kroah-Hartman
  0 siblings, 0 replies; 5+ messages in thread
From: Greg Kroah-Hartman @ 2017-03-24 13:44 UTC (permalink / raw)
  To: Arushi Singhal
  Cc: oleg.drokin, Andreas Dilger, James Simmons, lustre-devel, devel,
	linux-kernel, outreachy-kernel

On Fri, Mar 24, 2017 at 05:09:53PM +0530, Arushi Singhal wrote:
> Remove the code which do not have any value.
> 
> Signed-off-by: Arushi Singhal <arushisinghal19971997@gmail.com>
> ---
>  drivers/staging/lustre/lnet/lnet/net_fault.c | 5 -----
>  1 file changed, 5 deletions(-)
> 
> diff --git a/drivers/staging/lustre/lnet/lnet/net_fault.c b/drivers/staging/lustre/lnet/lnet/net_fault.c
> index 18183cbb9859..b60261db9e67 100644
> --- a/drivers/staging/lustre/lnet/lnet/net_fault.c
> +++ b/drivers/staging/lustre/lnet/lnet/net_fault.c
> @@ -997,11 +997,6 @@ lnet_fault_ctl(int opc, struct libcfs_ioctl_data *data)
>  int
>  lnet_fault_init(void)
>  {
> -	BUILD_BUG_ON(LNET_PUT_BIT != 1 << LNET_MSG_PUT);
> -	BUILD_BUG_ON(LNET_ACK_BIT != 1 << LNET_MSG_ACK);
> -	BUILD_BUG_ON(LNET_GET_BIT != 1 << LNET_MSG_GET);
> -	BUILD_BUG_ON(LNET_REPLY_BIT != 1 << LNET_MSG_REPLY);

Why does this not have any value?  How are you ensuring that these
requirements are now being met?

thanks,

greg k-h

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: [PATCH] staging: lustre: Remove redundant code
  2017-03-24 13:44   ` [lustre-devel] " Greg Kroah-Hartman
@ 2017-03-24 20:10     ` Dilger, Andreas
  -1 siblings, 0 replies; 5+ messages in thread
From: Dilger, Andreas @ 2017-03-24 20:10 UTC (permalink / raw)
  To: Greg Kroah-Hartman
  Cc: Arushi Singhal, Drokin, Oleg, James Simmons, lustre-devel, devel,
	linux-kernel, outreachy-kernel

On Mar 24, 2017, at 07:44, Greg Kroah-Hartman <gregkh@linuxfoundation.org> wrote:
> 
> On Fri, Mar 24, 2017 at 05:09:53PM +0530, Arushi Singhal wrote:
>> Remove the code which do not have any value.
>> 
>> Signed-off-by: Arushi Singhal <arushisinghal19971997@gmail.com>
>> ---
>> drivers/staging/lustre/lnet/lnet/net_fault.c | 5 -----
>> 1 file changed, 5 deletions(-)
>> 
>> diff --git a/drivers/staging/lustre/lnet/lnet/net_fault.c b/drivers/staging/lustre/lnet/lnet/net_fault.c
>> index 18183cbb9859..b60261db9e67 100644
>> --- a/drivers/staging/lustre/lnet/lnet/net_fault.c
>> +++ b/drivers/staging/lustre/lnet/lnet/net_fault.c
>> @@ -997,11 +997,6 @@ lnet_fault_ctl(int opc, struct libcfs_ioctl_data *data)
>> int
>> lnet_fault_init(void)
>> {
>> -	BUILD_BUG_ON(LNET_PUT_BIT != 1 << LNET_MSG_PUT);
>> -	BUILD_BUG_ON(LNET_ACK_BIT != 1 << LNET_MSG_ACK);
>> -	BUILD_BUG_ON(LNET_GET_BIT != 1 << LNET_MSG_GET);
>> -	BUILD_BUG_ON(LNET_REPLY_BIT != 1 << LNET_MSG_REPLY);
> 
> Why does this not have any value?  How are you ensuring that these
> requirements are now being met?

It was my recommendation to remove these checks, though on closer review I might have
been a bit premature.  For some reason I thought the LNET_*_BIT constants were defined
in terms of LNET_MSG_*, but I see they are not.

In conjunction with this change, the definition of LNET_*_BIT should be changed to be
defined in terms of the LNET_MSG_* constants:

 #define LNET_PUT_BIT BIT(LNET_MSG_PUT)
 #define LNET_ACK_BIT BIT(LNET_MSG_ACK)
 #define LNET_GET_BIT BIT(LNET_MSG_GET)
 #define LNET_REPLY_BIT BIT(LNET_MSG_REPLY)

The alternative would be to remove the LNET_*_BIT constants and use BIT(LNET_MSG_*)
directly in the code, since that is easy enough to read compared to (1 << LNET_MSG_*)
everywhere.  There don't seem to be a lot of users, so this wouldn't be a giant patch.

Cheers, Andreas
--
Andreas Dilger
Lustre Principal Architect
Intel Corporation









^ permalink raw reply	[flat|nested] 5+ messages in thread

* [lustre-devel] [PATCH] staging: lustre: Remove redundant code
@ 2017-03-24 20:10     ` Dilger, Andreas
  0 siblings, 0 replies; 5+ messages in thread
From: Dilger, Andreas @ 2017-03-24 20:10 UTC (permalink / raw)
  To: Greg Kroah-Hartman
  Cc: Arushi Singhal, Drokin, Oleg, James Simmons, lustre-devel, devel,
	linux-kernel, outreachy-kernel

On Mar 24, 2017, at 07:44, Greg Kroah-Hartman <gregkh@linuxfoundation.org> wrote:
> 
> On Fri, Mar 24, 2017 at 05:09:53PM +0530, Arushi Singhal wrote:
>> Remove the code which do not have any value.
>> 
>> Signed-off-by: Arushi Singhal <arushisinghal19971997@gmail.com>
>> ---
>> drivers/staging/lustre/lnet/lnet/net_fault.c | 5 -----
>> 1 file changed, 5 deletions(-)
>> 
>> diff --git a/drivers/staging/lustre/lnet/lnet/net_fault.c b/drivers/staging/lustre/lnet/lnet/net_fault.c
>> index 18183cbb9859..b60261db9e67 100644
>> --- a/drivers/staging/lustre/lnet/lnet/net_fault.c
>> +++ b/drivers/staging/lustre/lnet/lnet/net_fault.c
>> @@ -997,11 +997,6 @@ lnet_fault_ctl(int opc, struct libcfs_ioctl_data *data)
>> int
>> lnet_fault_init(void)
>> {
>> -	BUILD_BUG_ON(LNET_PUT_BIT != 1 << LNET_MSG_PUT);
>> -	BUILD_BUG_ON(LNET_ACK_BIT != 1 << LNET_MSG_ACK);
>> -	BUILD_BUG_ON(LNET_GET_BIT != 1 << LNET_MSG_GET);
>> -	BUILD_BUG_ON(LNET_REPLY_BIT != 1 << LNET_MSG_REPLY);
> 
> Why does this not have any value?  How are you ensuring that these
> requirements are now being met?

It was my recommendation to remove these checks, though on closer review I might have
been a bit premature.  For some reason I thought the LNET_*_BIT constants were defined
in terms of LNET_MSG_*, but I see they are not.

In conjunction with this change, the definition of LNET_*_BIT should be changed to be
defined in terms of the LNET_MSG_* constants:

 #define LNET_PUT_BIT BIT(LNET_MSG_PUT)
 #define LNET_ACK_BIT BIT(LNET_MSG_ACK)
 #define LNET_GET_BIT BIT(LNET_MSG_GET)
 #define LNET_REPLY_BIT BIT(LNET_MSG_REPLY)

The alternative would be to remove the LNET_*_BIT constants and use BIT(LNET_MSG_*)
directly in the code, since that is easy enough to read compared to (1 << LNET_MSG_*)
everywhere.  There don't seem to be a lot of users, so this wouldn't be a giant patch.

Cheers, Andreas
--
Andreas Dilger
Lustre Principal Architect
Intel Corporation

^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2017-03-24 20:10 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-03-24 11:39 [PATCH] staging: lustre: Remove redundant code Arushi Singhal
2017-03-24 13:44 ` Greg Kroah-Hartman
2017-03-24 13:44   ` [lustre-devel] " Greg Kroah-Hartman
2017-03-24 20:10   ` Dilger, Andreas
2017-03-24 20:10     ` [lustre-devel] " Dilger, Andreas

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