net: stmmac: Do not accept invalid MTU values
[ Upstream commit eaf4fac4 ] The maximum MTU value is determined by the maximum size of TX FIFO so that a full packet can fit in the FIFO. Add a check for this in the MTU change callback. Also check if provided and rounded MTU does not passes the maximum limit of 16K. Changes from v2: - Align MTU before checking if its valid Fixes: 7ac6653a ("stmmac: Move the STMicroelectronics driver") Signed-off-by:Jose Abreu <Jose.Abreu@synopsys.com> Signed-off-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
Sasha Levin <sashal@kernel.org>
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77de8ee6
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