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[ upstream commit 1ef8c62 ] Prefetching only helps performance if it is done several 100 instructions before the actual use. The purpose of the prefetch is to read ahead, it doesn't help if the next instruction will block. The code in the bnxt driver was doing these unnecessary prefetches. Fixes: 2eb53b1 ("net/bnxt: add initial Rx code") Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Acked-by: Lance Richardson <lance.richardson@broadcom.com> Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
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