[sheepdog] [PATCH] lib/net: fix CMD_FILTER branch never reached

[Liu Yuan]

On Tue, Jul 29, 2014 at 09:47:52AM +0800, Ruoyu wrote:
> In the previous patch, SD_FLAG_CMD_FILTER is introduced. It should operate
> both writing and reading, and what the client read is the subset of what
> it write. Therefore, for least modification, SD_FLAG_CMD_FILTER is set to 0x11
> (SD_FLAG_CMD_WRITE is 0x01).

Set SD_FLAG_CMD_FILTER as 0x11 is wrong. All the macros are mutually exclusive
in the SD_FLAG_CMD_XXX group and can be 'OR'ed together.

By the way, the name FILTER doesn't make sense. What you want is return something
back while you send something to sheep. How about

#define SD_FLAG_CMD_PIGGYBACK 0x10

Then if you .flag = SD_FLAG_CMD_PIGGYBACK | SD_FLAG_CMD_WRITE will serve you well

Thanks
Yuan