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Groups > linux.kernel > #1312580 > unrolled thread

[PATCH] sfc: Replace memset with eth_zero_addr

Started byLucas Tanure <tanure@linux.com>
First post2016-01-20 00:30 +0100
Last post2016-01-20 12:50 +0100
Articles 5 — 4 participants

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  [PATCH] sfc: Replace memset with eth_zero_addr Lucas Tanure <tanure@linux.com> - 2016-01-20 00:30 +0100
    Re: [PATCH] sfc: Replace memset with eth_zero_addr Bert Kenward <bkenward@solarflare.com> - 2016-01-20 11:00 +0100
      Re: [PATCH] sfc: Replace memset with eth_zero_addr David Miller <davem@davemloft.net> - 2016-01-20 11:30 +0100
    Re: [PATCH] sfc: Replace memset with eth_zero_addr Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-01-20 12:50 +0100
      Re: [PATCH] sfc: Replace memset with eth_zero_addr Lucas Tanure <tanure@linux.com> - 2016-01-20 12:50 +0100

#1312580 — [PATCH] sfc: Replace memset with eth_zero_addr

FromLucas Tanure <tanure@linux.com>
Date2016-01-20 00:30 +0100
Subject[PATCH] sfc: Replace memset with eth_zero_addr
Message-ID<qSNSO-6gl-19@gated-at.bofh.it>
Use eth_zero_addr to assign the zero address to the given address array
instead of memset when second argument is address of zero.

Signed-off-by: Lucas Tanure <tanure@linux.com>
---
 drivers/net/ethernet/sfc/ef10_sriov.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/sfc/ef10_sriov.c b/drivers/net/ethernet/sfc/ef10_sriov.c
index 3c17f27..10f60db 100644
--- a/drivers/net/ethernet/sfc/ef10_sriov.c
+++ b/drivers/net/ethernet/sfc/ef10_sriov.c
@@ -527,7 +527,7 @@ int efx_ef10_sriov_set_vf_mac(struct efx_nic *efx, int vf_i, u8 *mac)
 	return 0;
 
 fail:
-	memset(vf->mac, 0, ETH_ALEN);
+	eth_zero_addr(vf->mac);
 	return rc;
 }
 
-- 
2.7.0

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#1313044

FromBert Kenward <bkenward@solarflare.com>
Date2016-01-20 11:00 +0100
Message-ID<qSXIu-4Bq-1@gated-at.bofh.it>
In reply to#1312580
On 19/01/16 23:27, Lucas Tanure wrote:
> Use eth_zero_addr to assign the zero address to the given address array
> instead of memset when second argument is address of zero.
> 
> Signed-off-by: Lucas Tanure <tanure@linux.com>
> ---

Acked-by: Bert Kenward <bkenward@solarflare.com>

... although net-next is still closed I think.

-- 
Bert Kenward <bkenward@solarflare.com>
Software Engineer, Solarflare

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#1313088

FromDavid Miller <davem@davemloft.net>
Date2016-01-20 11:30 +0100
Message-ID<qSYbx-51L-35@gated-at.bofh.it>
In reply to#1313044
From: Bert Kenward <bkenward@solarflare.com>
Date: Wed, 20 Jan 2016 09:44:30 +0000

> On 19/01/16 23:27, Lucas Tanure wrote:
>> Use eth_zero_addr to assign the zero address to the given address array
>> instead of memset when second argument is address of zero.
>> 
>> Signed-off-by: Lucas Tanure <tanure@linux.com>
>> ---
> 
> Acked-by: Bert Kenward <bkenward@solarflare.com>
> 
> ... although net-next is still closed I think.

Correct.

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#1313151

FromSergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date2016-01-20 12:50 +0100
Message-ID<qSZqV-5Mi-11@gated-at.bofh.it>
In reply to#1312580
Hello.

On 1/20/2016 2:27 AM, Lucas Tanure wrote:

> Use eth_zero_addr to assign the zero address to the given address array
> instead of memset when second argument is address of zero.

    What address? memset() takes just 1 address. :-)

> Signed-off-by: Lucas Tanure <tanure@linux.com>
> ---
>   drivers/net/ethernet/sfc/ef10_sriov.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/ethernet/sfc/ef10_sriov.c b/drivers/net/ethernet/sfc/ef10_sriov.c
> index 3c17f27..10f60db 100644
> --- a/drivers/net/ethernet/sfc/ef10_sriov.c
> +++ b/drivers/net/ethernet/sfc/ef10_sriov.c
> @@ -527,7 +527,7 @@ int efx_ef10_sriov_set_vf_mac(struct efx_nic *efx, int vf_i, u8 *mac)
>   	return 0;
>
>   fail:
> -	memset(vf->mac, 0, ETH_ALEN);
> +	eth_zero_addr(vf->mac);
>   	return rc;
>   }
>

MBR, Sergei

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#1313152

FromLucas Tanure <tanure@linux.com>
Date2016-01-20 12:50 +0100
Message-ID<qSZqW-5Mi-13@gated-at.bofh.it>
In reply to#1313151
Hi,

On Wed, Jan 20, 2016 at 9:44 AM, Sergei Shtylyov
<sergei.shtylyov@cogentembedded.com> wrote:
> Hello.
>
> On 1/20/2016 2:27 AM, Lucas Tanure wrote:
>
>> Use eth_zero_addr to assign the zero address to the given address array
>> instead of memset when second argument is address of zero.
>
>
>    What address? memset() takes just 1 address. :-)

I mean the vf->mac, a pointer to a six-byte array containing the
Ethernet address.

>
>> Signed-off-by: Lucas Tanure <tanure@linux.com>
>> ---
>>   drivers/net/ethernet/sfc/ef10_sriov.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/net/ethernet/sfc/ef10_sriov.c
>> b/drivers/net/ethernet/sfc/ef10_sriov.c
>> index 3c17f27..10f60db 100644
>> --- a/drivers/net/ethernet/sfc/ef10_sriov.c
>> +++ b/drivers/net/ethernet/sfc/ef10_sriov.c
>> @@ -527,7 +527,7 @@ int efx_ef10_sriov_set_vf_mac(struct efx_nic *efx, int
>> vf_i, u8 *mac)
>>         return 0;
>>
>>   fail:
>> -       memset(vf->mac, 0, ETH_ALEN);
>> +       eth_zero_addr(vf->mac);
>>         return rc;
>>   }
>>
>
> MBR, Sergei
>

Thanks, Tanure

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