Re: [PATCH] xenbus: Neaten xenbus_va_dev_error

[Boris Ostrovsky]

On 02/08/2017 11:05 AM, Joe Perches wrote:
> On Wed, 2017-02-08 at 10:33 -0500, Boris Ostrovsky wrote:
>> On 02/08/2017 06:33 AM, Joe Perches wrote:
>>> This function error patch can be simplified, so do so.
>>>
>>> Remove fail: label and somewhat obfuscating, used once "error_path"
>>> function.
> btw: I left it alone, but likely
>
> #define PRINTF_BUFFER_SIZE 4096
>
> is probably excessive as the maximum printk
> buffer is 1024.
>
> The xenbus_write might be longer though so
> maybe it's OK to use 4096, but there is some
> inequivalence there.
>

xenbus_write() handles writes up to 4K. However we are filling the
buffer with sprintf() which I assume is limited to 1K too so it indeed
doesn't seem useful to have PRINTF_BUFFER_SIZE set to 4.

-boris