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authorThibaut VARENE <hacks@slashdirt.org>2017-09-12 23:22:37 +0200
committerMathias Kresin <dev@kresin.me>2017-09-13 08:07:54 +0200
commiteff3549c5883a9abc5dbff00c084cabbcfdf4437 (patch)
tree4de1960519ea37204b73f45aa9c97de4361dd45c /target/linux/ramips/base-files/lib
parentfd84ecda7d3bfebb4237110b8efe2ab2713ea8e1 (diff)
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generic: drop support for get_port_stats() on ar8xxx
The implementation is not efficient on ar8xxx switches. It triggers high CPU load and degrades device performance. The high CPU load has been traced down to the ar8xxx_reg_wait() call in ar8xxx_mib_op(), which has to usleep_range() till the MIB busy flag set by the request to update the MIB counter is cleared. This commit removes the get_port_stats() code introduced in 4d8a66d and leaves a note for future hacker's beware. Fixes: FS#1004 Signed-off-by: Thibaut VARENE <hacks@slashdirt.org>
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