From: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-kernel@vger.kernel.org, kernel@pengutronix.de,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
Finn Thain <fthain@linux-m68k.org>,
Zhang Qilong <zhangqilong3@huawei.com>,
Christophe JAILLET <christophe.jaillet@wanadoo.fr>,
netdev@vger.kernel.org, linux-m68k@lists.linux-m68k.org
Subject: [PATCH 2/5] nubus: Make struct nubus_driver::remove return void
Date: Tue, 27 Jul 2021 10:08:37 +0200 [thread overview]
Message-ID: <20210727080840.3550927-3-u.kleine-koenig@pengutronix.de> (raw)
In-Reply-To: <20210727080840.3550927-1-u.kleine-koenig@pengutronix.de>
The nubus core ignores the return value of the remove callback (in
nubus_device_remove()) and all implementers return 0 anyway.
So make it impossible for future drivers to return an unused error code
by changing the remove prototype to return void.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
---
drivers/net/ethernet/8390/mac8390.c | 3 +--
drivers/net/ethernet/natsemi/macsonic.c | 4 +---
include/linux/nubus.h | 2 +-
3 files changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/net/ethernet/8390/mac8390.c b/drivers/net/ethernet/8390/mac8390.c
index 9aac7119d382..91b04abfd687 100644
--- a/drivers/net/ethernet/8390/mac8390.c
+++ b/drivers/net/ethernet/8390/mac8390.c
@@ -428,13 +428,12 @@ static int mac8390_device_probe(struct nubus_board *board)
return err;
}
-static int mac8390_device_remove(struct nubus_board *board)
+static void mac8390_device_remove(struct nubus_board *board)
{
struct net_device *dev = nubus_get_drvdata(board);
unregister_netdev(dev);
free_netdev(dev);
- return 0;
}
static struct nubus_driver mac8390_driver = {
diff --git a/drivers/net/ethernet/natsemi/macsonic.c b/drivers/net/ethernet/natsemi/macsonic.c
index 2289e1fe3741..8709d700e15a 100644
--- a/drivers/net/ethernet/natsemi/macsonic.c
+++ b/drivers/net/ethernet/natsemi/macsonic.c
@@ -603,7 +603,7 @@ static int mac_sonic_nubus_probe(struct nubus_board *board)
return err;
}
-static int mac_sonic_nubus_remove(struct nubus_board *board)
+static void mac_sonic_nubus_remove(struct nubus_board *board)
{
struct net_device *ndev = nubus_get_drvdata(board);
struct sonic_local *lp = netdev_priv(ndev);
@@ -613,8 +613,6 @@ static int mac_sonic_nubus_remove(struct nubus_board *board)
SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
lp->descriptors, lp->descriptors_laddr);
free_netdev(ndev);
-
- return 0;
}
static struct nubus_driver mac_sonic_nubus_driver = {
diff --git a/include/linux/nubus.h b/include/linux/nubus.h
index eba50b057f6f..392fc6c53e96 100644
--- a/include/linux/nubus.h
+++ b/include/linux/nubus.h
@@ -86,7 +86,7 @@ extern struct list_head nubus_func_rsrcs;
struct nubus_driver {
struct device_driver driver;
int (*probe)(struct nubus_board *board);
- int (*remove)(struct nubus_board *board);
+ void (*remove)(struct nubus_board *board);
};
extern struct bus_type nubus_bus_type;
--
2.30.2
next prev parent reply other threads:[~2021-07-27 8:09 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-27 8:08 [PATCH 0/5] Some cleanups after making bus_type::remove return void Uwe Kleine-König
2021-07-27 8:08 ` [PATCH 1/5] nubus: Simplify check in remove callback Uwe Kleine-König
2021-07-27 9:50 ` Finn Thain
2021-07-27 10:07 ` Geert Uytterhoeven
2021-07-27 10:19 ` Finn Thain
2021-07-27 11:42 ` Uwe Kleine-König
2021-07-31 10:32 ` Finn Thain
2021-07-31 12:05 ` Uwe Kleine-König
2021-07-27 8:08 ` Uwe Kleine-König [this message]
2021-07-27 9:47 ` [PATCH 2/5] nubus: Make struct nubus_driver::remove return void Finn Thain
2021-07-27 8:08 ` [PATCH 3/5] sh: superhyway: Simplify check in remove callback Uwe Kleine-König
2021-07-27 8:08 ` [PATCH 4/5] zorro: Simplify " Uwe Kleine-König
2021-07-27 8:08 ` [PATCH 5/5] zorro: Drop useless (and hardly used) .driver member in struct zorro_dev Uwe Kleine-König
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