From 3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Wed, 2 Sep 2026 15:31:14 -0700 Subject: treewide: refresh kmalloc_obj() conversions 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 --- arch/mips/bcm63xx/gpio.c | 149 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 149 insertions(+) create mode 100644 arch/mips/bcm63xx/gpio.c (limited to 'arch/mips/bcm63xx/gpio.c') diff --git a/arch/mips/bcm63xx/gpio.c b/arch/mips/bcm63xx/gpio.c new file mode 100644 index 000000000..ff45a6989 --- /dev/null +++ b/arch/mips/bcm63xx/gpio.c @@ -0,0 +1,149 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2008 Maxime Bizon + * Copyright (C) 2008-2011 Florian Fainelli + */ + +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +static u32 gpio_out_low_reg; + +static void bcm63xx_gpio_out_low_reg_init(void) +{ + switch (bcm63xx_get_cpu_id()) { + case BCM6345_CPU_ID: + gpio_out_low_reg = GPIO_DATA_LO_REG_6345; + break; + default: + gpio_out_low_reg = GPIO_DATA_LO_REG; + break; + } +} + +static DEFINE_SPINLOCK(bcm63xx_gpio_lock); +static u32 gpio_out_low, gpio_out_high; + +static int bcm63xx_gpio_set(struct gpio_chip *chip, unsigned int gpio, int val) +{ + u32 reg; + u32 mask; + u32 *v; + unsigned long flags; + + BUG_ON(gpio >= chip->ngpio); + + if (gpio < 32) { + reg = gpio_out_low_reg; + mask = 1 << gpio; + v = &gpio_out_low; + } else { + reg = GPIO_DATA_HI_REG; + mask = 1 << (gpio - 32); + v = &gpio_out_high; + } + + spin_lock_irqsave(&bcm63xx_gpio_lock, flags); + if (val) + *v |= mask; + else + *v &= ~mask; + bcm_gpio_writel(*v, reg); + spin_unlock_irqrestore(&bcm63xx_gpio_lock, flags); + + return 0; +} + +static int bcm63xx_gpio_get(struct gpio_chip *chip, unsigned gpio) +{ + u32 reg; + u32 mask; + + BUG_ON(gpio >= chip->ngpio); + + if (gpio < 32) { + reg = gpio_out_low_reg; + mask = 1 << gpio; + } else { + reg = GPIO_DATA_HI_REG; + mask = 1 << (gpio - 32); + } + + return !!(bcm_gpio_readl(reg) & mask); +} + +static int bcm63xx_gpio_set_direction(struct gpio_chip *chip, + unsigned gpio, int dir) +{ + u32 reg; + u32 mask; + u32 tmp; + unsigned long flags; + + BUG_ON(gpio >= chip->ngpio); + + if (gpio < 32) { + reg = GPIO_CTL_LO_REG; + mask = 1 << gpio; + } else { + reg = GPIO_CTL_HI_REG; + mask = 1 << (gpio - 32); + } + + spin_lock_irqsave(&bcm63xx_gpio_lock, flags); + tmp = bcm_gpio_readl(reg); + if (dir == BCM63XX_GPIO_DIR_IN) + tmp &= ~mask; + else + tmp |= mask; + bcm_gpio_writel(tmp, reg); + spin_unlock_irqrestore(&bcm63xx_gpio_lock, flags); + + return 0; +} + +static int bcm63xx_gpio_direction_input(struct gpio_chip *chip, unsigned gpio) +{ + return bcm63xx_gpio_set_direction(chip, gpio, BCM63XX_GPIO_DIR_IN); +} + +static int bcm63xx_gpio_direction_output(struct gpio_chip *chip, + unsigned gpio, int value) +{ + bcm63xx_gpio_set(chip, gpio, value); + return bcm63xx_gpio_set_direction(chip, gpio, BCM63XX_GPIO_DIR_OUT); +} + + +static struct gpio_chip bcm63xx_gpio_chip = { + .label = "bcm63xx-gpio", + .direction_input = bcm63xx_gpio_direction_input, + .direction_output = bcm63xx_gpio_direction_output, + .get = bcm63xx_gpio_get, + .set = bcm63xx_gpio_set, + .base = 0, +}; + +int __init bcm63xx_gpio_init(void) +{ + bcm63xx_gpio_out_low_reg_init(); + + gpio_out_low = bcm_gpio_readl(gpio_out_low_reg); + if (!BCMCPU_IS_6345()) + gpio_out_high = bcm_gpio_readl(GPIO_DATA_HI_REG); + bcm63xx_gpio_chip.ngpio = bcm63xx_gpio_count(); + pr_info("registering %d GPIOs\n", bcm63xx_gpio_chip.ngpio); + + return gpiochip_add_data(&bcm63xx_gpio_chip, NULL); +} -- cgit v1.3.1