From: Ben Hutchings <bhutchi...@solarflare.com>
Date: Thu, 7 Feb 2013 20:02:55 +0000
> On Thu, 2013-02-07 at 21:39 +0800, Freddy Xin wrote:
>> From: Freddy Xin <fre...@asix.com.tw>
>>
>> This is a resubmission.
>> Added "const" to ethtool_ops structure and fixed the coding style of
>> AX88179_BULKIN_SIZE array.
>> Fixed the issue that the default MTU is not 1500.
>> Added ax88179_change_mtu function and enabled the hardware jumbo frame
>> function to support an
>> MTU higher than 1500.
>> Fixed indentation and empty line coding style errors.
>> The _nopm version usb functions were added to access register in suspend and
>> resume functions.
>> Serveral variables allocted dynamically were removed and replaced by stack
>> variables.
>> ax88179_get_eeprom were modified from asix_get_eeprom in asix_common.
>>
>> This patch adds a driver for ASIX's AX88179 family of USB 3.0/2.0
>> to gigabit ethernet adapters. It's based on the AX88xxx driver but
>> the usb commands used to access registers for AX88179 are completely
>> different.
>> This driver had been verified on x86 system with AX88179/AX88178A and
>> Sitcomm LN-032 USB dongles.
>>
>> Signed-off-by: Freddy Xin <fre...@asix.com.tw>
> [...]
>> --- /dev/null
>> +++ b/drivers/net/usb/ax88179_178a.c
> [...]
>> +struct ax88179_data {
>> + u16 rxctl;
>> +};
>
> Should also be declared __packed, as on some architectures it may be
> padded to 4 bytes.
Packed is evil and should be avoid everywhere that it is possible to
do so. It's going to use byte loads on this u16 on RISC cpus simply
because __packed makes it so that the compiler cannot assume data
alignment any longer.
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