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Revision ab37a7a890c1176144a4c66ff3d51ef2c20ed486 authored by Stefan Wahren on 10 July 2021, 11:04:55 UTC, committed by Arnd Bergmann on 16 July 2021, 21:02:53 UTC 
ARM: multi_v7_defconfig: Make NOP_USB_XCEIV driver built-in
 
The usage of usb-nop-xceiv PHY on Raspberry Pi boards with BCM283x has
been a "regression source" a lot of times. The last case is breakage of
USB mass storage boot has been commit e590474768f1 ("driver core: Set
fw_devlink=on by default") for multi_v7_defconfig. As long as
NOP_USB_XCEIV is configured as module, the dwc2 USB driver defer probing
endlessly and prevent booting from USB mass storage device. So make
the driver built-in as in bcm2835_defconfig and arm64/defconfig.

Fixes: e590474768f1 ("driver core: Set fw_devlink=on by default")
Reported-by: Ojaswin Mujoo <ojaswin98@gmail.com>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Link: https://lore.kernel.org/r/1625915095-23077-1-git-send-email-stefan.wahren@i2se.com'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
1 parent 042f2e1
Raw File
protocol.c 
// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * INET		An implementation of the TCP/IP protocol suite for the LINUX
 *		operating system.  INET is implemented using the  BSD Socket
 *		interface as the means of communication with the user level.
 *
 *		PF_INET6 protocol dispatch tables.
 *
 * Authors:	Pedro Roque	<roque@di.fc.ul.pt>
 */

/*
 *      Changes:
 *
 *      Vince Laviano (vince@cs.stanford.edu)       16 May 2001
 *      - Removed unused variable 'inet6_protocol_base'
 *      - Modified inet6_del_protocol() to correctly maintain copy bit.
 */
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/spinlock.h>
#include <net/protocol.h>

#if IS_ENABLED(CONFIG_IPV6)
struct inet6_protocol __rcu *inet6_protos[MAX_INET_PROTOS] __read_mostly;
EXPORT_SYMBOL(inet6_protos);

int inet6_add_protocol(const struct inet6_protocol *prot, unsigned char protocol)
{
	return !cmpxchg((const struct inet6_protocol **)&inet6_protos[protocol],
			NULL, prot) ? 0 : -1;
}
EXPORT_SYMBOL(inet6_add_protocol);

int inet6_del_protocol(const struct inet6_protocol *prot, unsigned char protocol)
{
	int ret;

	ret = (cmpxchg((const struct inet6_protocol **)&inet6_protos[protocol],
		       prot, NULL) == prot) ? 0 : -1;

	synchronize_net();

	return ret;
}
EXPORT_SYMBOL(inet6_del_protocol);
#endif

const struct net_offload __rcu *inet6_offloads[MAX_INET_PROTOS] __read_mostly;
EXPORT_SYMBOL(inet6_offloads);

int inet6_add_offload(const struct net_offload *prot, unsigned char protocol)
{
	return !cmpxchg((const struct net_offload **)&inet6_offloads[protocol],
			NULL, prot) ? 0 : -1;
}
EXPORT_SYMBOL(inet6_add_offload);

int inet6_del_offload(const struct net_offload *prot, unsigned char protocol)
{
	int ret;

	ret = (cmpxchg((const struct net_offload **)&inet6_offloads[protocol],
		       prot, NULL) == prot) ? 0 : -1;

	synchronize_net();

	return ret;
}
EXPORT_SYMBOL(inet6_del_offload);
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