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Date: Thu, 17 Nov 2022 22:55:56 +0100 From: Miquel Raynal <miquel.raynal@...tlin.com> To: Rob Herring <robh+dt@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, devicetree@...r.kernel.org, "David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Eric Dumazet <edumazet@...gle.com>, netdev@...r.kernel.org Cc: Marcin Wojtas <mw@...ihalf.com>, Russell King <linux@...linux.org.uk>, Taras Chornyi <tchornyi@...vell.com>, <linux-kernel@...r.kernel.org>, Robert Marko <robert.marko@...tura.hr>, Luka Perkov <luka.perkov@...tura.hr>, Thomas Petazzoni <thomas.petazzoni@...tlin.com>, Michael Walle <michael@...le.cc>, Miquel Raynal <miquel.raynal@...tlin.com> Subject: [PATCH net-next 5/6] net: marvell: prestera: Avoid unnecessary DT lookups This driver fist makes an expensive DT lookup to retrieve its DT node (this is a PCI driver) in order to later search for the base-mac-provider property. This property has no reality upstream and this code should not have been accepted like this in the first place. Instead, there is a proper nvmem interface that should be used. Let's avoid these extra lookups and rely on the nvmem internal logic. Signed-off-by: Miquel Raynal <miquel.raynal@...tlin.com> --- .../net/ethernet/marvell/prestera/prestera_main.c | 15 ++++----------- 1 file changed, 4 insertions(+), 11 deletions(-) diff --git a/drivers/net/ethernet/marvell/prestera/prestera_main.c b/drivers/net/ethernet/marvell/prestera/prestera_main.c index 24f9d6024745..d4b48f674a88 100644 --- a/drivers/net/ethernet/marvell/prestera/prestera_main.c +++ b/drivers/net/ethernet/marvell/prestera/prestera_main.c @@ -862,17 +862,10 @@ static void prestera_event_handlers_unregister(struct prestera_switch *sw) static int prestera_switch_set_base_mac_addr(struct prestera_switch *sw) { - struct device_node *base_mac_np; - int ret = 0; - - if (sw->np) { - base_mac_np = of_parse_phandle(sw->np, "base-mac-provider", 0); - if (base_mac_np) { - ret = of_get_mac_address(base_mac_np, sw->base_mac); - of_node_put(base_mac_np); - } - } + int ret; + if (sw->np) + ret = of_get_mac_address(sw->np, sw->base_mac); if (!is_valid_ether_addr(sw->base_mac) || ret) { eth_random_addr(sw->base_mac); dev_info(prestera_dev(sw), "using random base mac address\n"); @@ -1376,7 +1369,7 @@ static int prestera_switch_init(struct prestera_switch *sw) { int err; - sw->np = of_find_compatible_node(NULL, NULL, "marvell,prestera"); + sw->np = sw->dev->dev->of_node; err = prestera_hw_switch_init(sw); if (err) { -- 2.34.1
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