[PATCH 01/13] net: tftp: Increase TFTP pkt string length to include null character

[Wadim Egorov]

Am 09.01.25 um 23:27 schrieb Tom Rini:
> On Thu, Jan 09, 2025 at 12:41:56PM +0530, Vankar, Chintan wrote:
>>
>>
>> On 1/7/2025 7:52 PM, Tom Rini wrote:
>>> On Tue, Jan 07, 2025 at 03:08:28PM +0530, Chintan Vankar wrote:
>>>
>>>> 'sprintf()' function defined in 'tiny-printf.c' is returning length of the
>>>> string excluding null character. Fix this by increasing TFTP pkt length by
>>>> 1 to avoid TFTP error of request being not-null terminated while
>>>> requesting length of packet.
>>>>
>>>> Signed-off-by: Chintan Vankar <c-vankar at ti.com>

Tested-by: Wadim Egorov <w.egorov at phytec.de>

>>>
>>> Erm, if tiny-printf's sprintf doesn't work like lib/vsprintf.c's sprintf
>>> in this regard, we should be fixing tiny-printf.
>>>
>>
>> Hello Tom, I have observed that 'sprintf()' defined in lib/vsprintf.c
>> at here:
>> https://github.com/torvalds/linux/blob/master/lib/vsprintf.c#L3035
>> also behaves the same way, that returns length of the string excluding
>> null character.
> 
> Then please rework the commit message, thanks.

Any updates on this patch?

I can see the exact same error when using ethernet boot on phycore-am62x:

Filename 'phyboard-lyra-am62xx-3/tispl.bin'.
Load address: 0x82000000
Loading: *
TFTP error: 'Request not null-terminated' (4)