Messages in this thread | | | Date | Thu, 2 Jul 2020 11:19:58 +0100 | From | Russell King - ARM Linux admin <> | Subject | Re: [PATCH net-next] net: dsa: microchip: split adjust_link() in phylink_mac_link_{up|down}() |
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On Thu, Jul 02, 2020 at 12:54:39PM +0300, Codrin Ciubotariu wrote: > The DSA subsystem moved to phylink and adjust_link() became deprecated in > the process. This patch removes adjust_link from the KSZ DSA switches and > adds phylink_mac_link_up() and phylink_mac_link_down(). > > Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
For the code _transformation_ that the patch does:
Reviewed-by: Russell King <rmk+kernel@armlinux.org.uk>
as it is equivalent. However, for a deeper review of what is going on here, I've a question:
$ grep live_ports * ksz8795.c: dev->live_ports = dev->host_mask; ksz8795.c: dev->live_ports |= BIT(port); ksz_common.h: u16 live_ports; ksz_common.c: dev->live_ports &= ~(1 << port); ksz_common.c: dev->live_ports |= (1 << port) & dev->on_ports; ksz_common.c: dev->live_ports &= ~(1 << port); ksz9477.c: dev->live_ports = dev->host_mask; ksz9477.c: dev->live_ports |= (1 << port);
These are the only references to dev->live_ports, so the purpose of dev->live_ports seems unclear; it seems it is only updated but never read. Can it be removed, along with the locking in your new functions?
Thanks.
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