mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-08-05 16:54:27 +00:00
f59fdcef3a
Using a direct assignment instead of memcpy reduces the text segment size from 0x273 bytes to 0x19b bytes in my case. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/af371f2a-42f3-4d94-80b9-3420380a3f6f@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
79 lines
1.9 KiB
C
79 lines
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* mdio-boardinfo - Collect pre-declarations for MDIO devices
|
|
*/
|
|
|
|
#include <linux/export.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/list.h>
|
|
#include <linux/mutex.h>
|
|
#include <linux/phy.h>
|
|
#include <linux/slab.h>
|
|
|
|
#include "mdio-boardinfo.h"
|
|
|
|
static LIST_HEAD(mdio_board_list);
|
|
static DEFINE_MUTEX(mdio_board_lock);
|
|
|
|
struct mdio_board_entry {
|
|
struct list_head list;
|
|
struct mdio_board_info board_info;
|
|
};
|
|
|
|
/**
|
|
* mdiobus_setup_mdiodev_from_board_info - create and setup MDIO devices
|
|
* from pre-collected board specific MDIO information
|
|
* @bus: Bus the board_info belongs to
|
|
* @cb: Callback to create device on bus
|
|
* Context: can sleep
|
|
*/
|
|
void mdiobus_setup_mdiodev_from_board_info(struct mii_bus *bus,
|
|
int (*cb)
|
|
(struct mii_bus *bus,
|
|
struct mdio_board_info *bi))
|
|
{
|
|
struct mdio_board_entry *be, *tmp;
|
|
|
|
mutex_lock(&mdio_board_lock);
|
|
list_for_each_entry_safe(be, tmp, &mdio_board_list, list) {
|
|
struct mdio_board_info *bi = &be->board_info;
|
|
|
|
if (strcmp(bus->id, bi->bus_id))
|
|
continue;
|
|
|
|
mutex_unlock(&mdio_board_lock);
|
|
cb(bus, bi);
|
|
mutex_lock(&mdio_board_lock);
|
|
}
|
|
mutex_unlock(&mdio_board_lock);
|
|
}
|
|
EXPORT_SYMBOL(mdiobus_setup_mdiodev_from_board_info);
|
|
|
|
/**
|
|
* mdiobus_register_board_info - register MDIO devices for a given board
|
|
* @info: array of devices descriptors
|
|
* @n: number of descriptors provided
|
|
* Context: can sleep
|
|
*
|
|
* The board info passed can be marked with __initdata but be pointers
|
|
* such as platform_data etc. are copied as-is
|
|
*/
|
|
int mdiobus_register_board_info(const struct mdio_board_info *info,
|
|
unsigned int n)
|
|
{
|
|
struct mdio_board_entry *be;
|
|
|
|
be = kcalloc(n, sizeof(*be), GFP_KERNEL);
|
|
if (!be)
|
|
return -ENOMEM;
|
|
|
|
for (int i = 0; i < n; i++, be++) {
|
|
be->board_info = info[i];
|
|
mutex_lock(&mdio_board_lock);
|
|
list_add_tail(&be->list, &mdio_board_list);
|
|
mutex_unlock(&mdio_board_lock);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(mdiobus_register_board_info);
|