diff mbox series

ibmvnic: remove default label from to_string switch

Message ID 20210503102323.17804-1-msuchanek@suse.de (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series ibmvnic: remove default label from to_string switch | expand

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netdev/source_inline success Was 0 now: 0
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netdev/module_param success Was 0 now: 0
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/kdoc success Errors and warnings before: 3 this patch: 3
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netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 20 lines checked
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/header_inline success Link

Commit Message

Michal Suchánek May 3, 2021, 10:23 a.m. UTC
This way the compiler warns when a new value is added to the enum but
not the string transation like:

drivers/net/ethernet/ibm/ibmvnic.c: In function 'adapter_state_to_string':
drivers/net/ethernet/ibm/ibmvnic.c:832:2: warning: enumeration value 'VNIC_FOOBAR' not handled in switch [-Wswitch]
  switch (state) {
  ^~~~~~
drivers/net/ethernet/ibm/ibmvnic.c: In function 'reset_reason_to_string':
drivers/net/ethernet/ibm/ibmvnic.c:1935:2: warning: enumeration value 'VNIC_RESET_FOOBAR' not handled in switch [-Wswitch]
  switch (reason) {
  ^~~~~~

Signed-off-by: Michal Suchanek <msuchanek@suse.de>
---
 drivers/net/ethernet/ibm/ibmvnic.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

Comments

Lijun Pan May 3, 2021, 6:21 p.m. UTC | #1
On Mon, May 3, 2021 at 5:54 AM Michal Suchanek <msuchanek@suse.de> wrote:
>
> This way the compiler warns when a new value is added to the enum but
> not the string transation like:

s/transation/translation/

This trick works.
Since the original code does not generate gcc warnings/errors, should
this patch be sent to net-next as an improvement?

>
> drivers/net/ethernet/ibm/ibmvnic.c: In function 'adapter_state_to_string':
> drivers/net/ethernet/ibm/ibmvnic.c:832:2: warning: enumeration value 'VNIC_FOOBAR' not handled in switch [-Wswitch]
>   switch (state) {
>   ^~~~~~
> drivers/net/ethernet/ibm/ibmvnic.c: In function 'reset_reason_to_string':
> drivers/net/ethernet/ibm/ibmvnic.c:1935:2: warning: enumeration value 'VNIC_RESET_FOOBAR' not handled in switch [-Wswitch]
>   switch (reason) {
>   ^~~~~~
>
> Signed-off-by: Michal Suchanek <msuchanek@suse.de>
> ---

Acked-by: Lijun Pan <lijunp213@gmail.com>

>  drivers/net/ethernet/ibm/ibmvnic.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
> index 5788bb956d73..4d439413f6d9 100644
> --- a/drivers/net/ethernet/ibm/ibmvnic.c
> +++ b/drivers/net/ethernet/ibm/ibmvnic.c
> @@ -846,9 +846,8 @@ static const char *adapter_state_to_string(enum vnic_state state)
>                 return "REMOVING";
>         case VNIC_REMOVED:
>                 return "REMOVED";
> -       default:
> -               return "UNKNOWN";
>         }
> +       return "UNKNOWN";
>  }
>
>  static int ibmvnic_login(struct net_device *netdev)
> @@ -1946,9 +1945,8 @@ static const char *reset_reason_to_string(enum ibmvnic_reset_reason reason)
>                 return "TIMEOUT";
>         case VNIC_RESET_CHANGE_PARAM:
>                 return "CHANGE_PARAM";
> -       default:
> -               return "UNKNOWN";
>         }
> +       return "UNKNOWN";
>  }
>
>  /*
> --
> 2.26.2
>
David Miller May 3, 2021, 8:47 p.m. UTC | #2
From: Lijun Pan <lijunp213@gmail.com>
Date: Mon, 3 May 2021 13:21:00 -0500

> On Mon, May 3, 2021 at 5:54 AM Michal Suchanek <msuchanek@suse.de> wrote:
>>
>> This way the compiler warns when a new value is added to the enum but
>> not the string transation like:
> 
> s/transation/translation/
> 
> This trick works.
> Since the original code does not generate gcc warnings/errors, should
> this patch be sent to net-next as an improvement?

Yes.
diff mbox series

Patch

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 5788bb956d73..4d439413f6d9 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -846,9 +846,8 @@  static const char *adapter_state_to_string(enum vnic_state state)
 		return "REMOVING";
 	case VNIC_REMOVED:
 		return "REMOVED";
-	default:
-		return "UNKNOWN";
 	}
+	return "UNKNOWN";
 }
 
 static int ibmvnic_login(struct net_device *netdev)
@@ -1946,9 +1945,8 @@  static const char *reset_reason_to_string(enum ibmvnic_reset_reason reason)
 		return "TIMEOUT";
 	case VNIC_RESET_CHANGE_PARAM:
 		return "CHANGE_PARAM";
-	default:
-		return "UNKNOWN";
 	}
+	return "UNKNOWN";
 }
 
 /*