net: davinci_emac: Round up top tx buffer boundaries for dcache ops
check_cache_range() warns that the top boundaries are not properly aligned when flushing or invalidating the buffers and make these operations fail. This gets rid of the remaining warnings: CACHE: Misaligned operation at range Signed-off-by: NKarl Beldan <karl.beldan+oss@gmail.com> Acked-by: NJoe Hershberger <joe.hershberger@ni.com> Reviewed-by: NTom Rini <trini@konsulko.com> Reviewed-by: NMugunthan V N <mugunthanvnm@ti.com>
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