Re: [net-next 2/3] ravb: Remove undocumented processing

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, Sep 02, 2019 at 08:41:14PM +0300, Sergei Shtylyov wrote:
> On 09/02/2019 11:06 AM, Simon Horman wrote:
> 
> > From: Kazuya Mizuguchi <kazuya.mizuguchi.ks@xxxxxxxxxxx>
> > 
> > This patch removes the use of the undocumented registers
> > CDCR, LCCR, CERCR, CEECR and the undocumented BOC bit of the CCC register.
> 
>    The driver has many more #define's marked as undocumented. It's not clear
> why you crammed the counters and the endianness bit in one patch. It clearly
> needs to be split -- one patch for the MAC counters and one patch for the
> AVB-DMAC bit.

Thanks for the suggestion, I will split the patch.

> > Current documentation for EtherAVB (ravb) describes the offset of
> > what the driver uses as the BOC bit as reserved and that only a value of
> > 0 should be written. Furthermore, the offsets used for the undocumented
> > registers are also considered reserved nd should not be written to.
> > 
> > After some internal investigation with Renesas it remains unclear
> > why this driver accesses these fields but regardless of what the historical
> > reasons are the current code is considered incorrect.
> > 
> > Signed-off-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@xxxxxxxxxxx>
> > Signed-off-by: Simon Horman <horms+renesas@xxxxxxxxxxxx>
> [...]
> 
> MBR, Sergei
> 



[Index of Archives]     [Linux Samsung SOC]     [Linux Wireless]     [Linux Kernel]     [ATH6KL]     [Linux Bluetooth]     [Linux Netdev]     [Kernel Newbies]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Samba]     [Device Mapper]

  Powered by Linux