diff options
| author | Kees Cook <kees+treewide@kernel.org> | 2026-09-02 15:31:14 -0700 |
|---|---|---|
| committer | Kees Cook <kees@kernel.org> | 2026-09-04 21:37:00 -0700 |
| commit | 3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d (patch) | |
| tree | c65086f9bdcd48c6360fb7cb4598bca084da1f32 /drivers/net/phy/cicada.c | |
| download | linux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.tar.gz linux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.zip | |
treewide: refresh kmalloc_obj() conversionsgrafted
This is another run of the Coccinelle script for converting kmalloc()
family of allocations to kmalloc_obj() via the existing rules in
scripts/coccinelle/api/kmalloc_objs.cocci
This catches both the set of kmalloc() uses added since the first
kmalloc_obj() conversions in v7.0 and adds a large group missed in the
first pass due to Coccinelle not interacting well with the cleanup.h
scoped_...() family of macros[1]. I worked around this with spatch's
"--macro-file" argument to a file with all the scoped_...() macros mapped
to Coccinelle's YACFE_ITERATOR[2] as that was the closest viable control
flow indicator I could find.
Build tested allmodconfig on x86, arm64, arm, loongarch, mips, powerpc,
riscv, and s390 with no new warnings.
Link: https://lore.kernel.org/lkml/202609021314.8A9C0B8@keescook/ [1]
Link: https://github.com/coccinelle/coccinelle/blob/master/standard.h [2]
Signed-off-by: Kees Cook <kees+treewide@kernel.org>
Diffstat (limited to 'drivers/net/phy/cicada.c')
| -rw-r--r-- | drivers/net/phy/cicada.c | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/drivers/net/phy/cicada.c b/drivers/net/phy/cicada.c new file mode 100644 index 000000000..d87cf8b94 --- /dev/null +++ b/drivers/net/phy/cicada.c @@ -0,0 +1,154 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * drivers/net/phy/cicada.c + * + * Driver for Cicada PHYs + * + * Author: Andy Fleming + * + * Copyright (c) 2004 Freescale Semiconductor, Inc. + */ +#include <linux/kernel.h> +#include <linux/string.h> +#include <linux/errno.h> +#include <linux/unistd.h> +#include <linux/interrupt.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/skbuff.h> +#include <linux/spinlock.h> +#include <linux/mm.h> +#include <linux/module.h> +#include <linux/mii.h> +#include <linux/ethtool.h> +#include <linux/phy.h> + +#include <linux/io.h> +#include <asm/irq.h> +#include <linux/uaccess.h> + +/* Cicada Extended Control Register 1 */ +#define MII_CIS8201_EXT_CON1 0x17 +#define MII_CIS8201_EXTCON1_INIT 0x0000 + +/* Cicada Interrupt Mask Register */ +#define MII_CIS8201_IMASK 0x19 +#define MII_CIS8201_IMASK_IEN 0x8000 +#define MII_CIS8201_IMASK_SPEED 0x4000 +#define MII_CIS8201_IMASK_LINK 0x2000 +#define MII_CIS8201_IMASK_DUPLEX 0x1000 +#define MII_CIS8201_IMASK_MASK 0xf000 + +/* Cicada Interrupt Status Register */ +#define MII_CIS8201_ISTAT 0x1a +#define MII_CIS8201_ISTAT_STATUS 0x8000 +#define MII_CIS8201_ISTAT_SPEED 0x4000 +#define MII_CIS8201_ISTAT_LINK 0x2000 +#define MII_CIS8201_ISTAT_DUPLEX 0x1000 + +/* Cicada Auxiliary Control/Status Register */ +#define MII_CIS8201_AUX_CONSTAT 0x1c +#define MII_CIS8201_AUXCONSTAT_INIT 0x0004 +#define MII_CIS8201_AUXCONSTAT_DUPLEX 0x0020 +#define MII_CIS8201_AUXCONSTAT_SPEED 0x0018 +#define MII_CIS8201_AUXCONSTAT_GBIT 0x0010 +#define MII_CIS8201_AUXCONSTAT_100 0x0008 + +MODULE_DESCRIPTION("Cicadia PHY driver"); +MODULE_AUTHOR("Andy Fleming"); +MODULE_LICENSE("GPL"); + +static int cis820x_config_init(struct phy_device *phydev) +{ + int err; + + err = phy_write(phydev, MII_CIS8201_AUX_CONSTAT, + MII_CIS8201_AUXCONSTAT_INIT); + + if (err < 0) + return err; + + err = phy_write(phydev, MII_CIS8201_EXT_CON1, + MII_CIS8201_EXTCON1_INIT); + + return err; +} + +static int cis820x_ack_interrupt(struct phy_device *phydev) +{ + int err = phy_read(phydev, MII_CIS8201_ISTAT); + + return (err < 0) ? err : 0; +} + +static int cis820x_config_intr(struct phy_device *phydev) +{ + int err; + + if (phydev->interrupts == PHY_INTERRUPT_ENABLED) { + err = cis820x_ack_interrupt(phydev); + if (err) + return err; + + err = phy_write(phydev, MII_CIS8201_IMASK, + MII_CIS8201_IMASK_MASK); + } else { + err = phy_write(phydev, MII_CIS8201_IMASK, 0); + if (err) + return err; + + err = cis820x_ack_interrupt(phydev); + } + + return err; +} + +static irqreturn_t cis820x_handle_interrupt(struct phy_device *phydev) +{ + int irq_status; + + irq_status = phy_read(phydev, MII_CIS8201_ISTAT); + if (irq_status < 0) { + phy_error(phydev); + return IRQ_NONE; + } + + if (!(irq_status & MII_CIS8201_IMASK_MASK)) + return IRQ_NONE; + + phy_trigger_machine(phydev); + + return IRQ_HANDLED; +} + +/* Cicada 8201, a.k.a Vitesse VSC8201 */ +static struct phy_driver cis820x_driver[] = { +{ + .phy_id = 0x000fc410, + .name = "Cicada Cis8201", + .phy_id_mask = 0x000ffff0, + /* PHY_GBIT_FEATURES */ + .config_init = &cis820x_config_init, + .config_intr = &cis820x_config_intr, + .handle_interrupt = &cis820x_handle_interrupt, +}, { + .phy_id = 0x000fc440, + .name = "Cicada Cis8204", + .phy_id_mask = 0x000fffc0, + /* PHY_GBIT_FEATURES */ + .config_init = &cis820x_config_init, + .config_intr = &cis820x_config_intr, + .handle_interrupt = &cis820x_handle_interrupt, +} }; + +module_phy_driver(cis820x_driver); + +static const struct mdio_device_id __maybe_unused cicada_tbl[] = { + { 0x000fc410, 0x000ffff0 }, + { 0x000fc440, 0x000fffc0 }, + { } +}; + +MODULE_DEVICE_TABLE(mdio, cicada_tbl); |
