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SubjectRe: [PATCH] [net-next] sfc: avoid an unused-variable warning
On 28/05/2020 20:49, David Miller wrote:
> From: Arnd Bergmann <>
> Date: Wed, 27 May 2020 15:41:06 +0200
>> 'nic_data' is no longer used outside of the #ifdef block
>> in efx_ef10_set_mac_address:
>> drivers/net/ethernet/sfc/ef10.c:3231:28: error: unused variable 'nic_data' [-Werror,-Wunused-variable]
>> struct efx_ef10_nic_data *nic_data = efx->nic_data;
>> Move the variable into a local scope.
>> Fixes: dfcabb078847 ("sfc: move vport_id to struct efx_nic")
>> Signed-off-by: Arnd Bergmann <>
> Applid, thanks.
Sorry I didn't see the original patch (I think it disappeared
 into a mail outage).  Fix is good, but I think we can improve
 the code further by moving the declaration down another block,
 into the 'if (rc == -EPERM)', at which point it is no longer
 shadowed by the other nic_data declaration in the
 'else if (!rc)' block.
Alternatively, we could rename the latter to 'pf_nic_data' or
 something.  Any opinions/preferences on which way to go?  We
 could even do both...
When I make up my mind I'll spin an incremental patch.


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