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/sni/reset.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 arch/mips/sni/reset.c (limited to 'arch/mips/sni/reset.c') diff --git a/arch/mips/sni/reset.c b/arch/mips/sni/reset.c new file mode 100644 index 000000000..66f963d8d --- /dev/null +++ b/arch/mips/sni/reset.c @@ -0,0 +1,48 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * linux/arch/mips/sni/process.c + * + * Reset a SNI machine. + */ +#include + +#include +#include +#include + +/* + * This routine reboots the machine by asking the keyboard + * controller to pulse the reset-line low. We try that for a while, + * and if it doesn't work, we do some other stupid things. + */ +static inline void kb_wait(void) +{ + int i; + + for (i = 0; i < 0x10000; i++) + if ((inb_p(0x64) & 0x02) == 0) + break; +} + +/* XXX This ends up at the ARC firmware prompt ... */ +void sni_machine_restart(char *command) +{ + int i; + + /* This does a normal via the keyboard controller like a PC. + We can do that easier ... */ + local_irq_disable(); + for (;;) { + for (i = 0; i < 100; i++) { + kb_wait(); + udelay(50); + outb_p(0xfe, 0x64); /* pulse reset low */ + udelay(50); + } + } +} + +void sni_machine_power_off(void) +{ + *(volatile unsigned char *)PCIMT_CSWCSM = 0xfd; +} -- cgit v1.3.1