From a97fbc3ee3e2a536fafaff04f21f45472db71769 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Wed, 29 Oct 2025 17:33:30 +0100 Subject: syscore: Pass context data to callbacks Several drivers can benefit from registering per-instance data along with the syscore operations. To achieve this, move the modifiable fields out of the syscore_ops structure and into a separate struct syscore that can be registered with the framework. Add a void * driver data field for drivers to store contextual data that will be passed to the syscore ops. Acked-by: Rafael J. Wysocki (Intel) Signed-off-by: Thierry Reding --- arch/x86/kernel/cpu/microcode/core.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) (limited to 'arch/x86/kernel/cpu/microcode') diff --git a/arch/x86/kernel/cpu/microcode/core.c b/arch/x86/kernel/cpu/microcode/core.c index f75c140906d0..3262756f8c32 100644 --- a/arch/x86/kernel/cpu/microcode/core.c +++ b/arch/x86/kernel/cpu/microcode/core.c @@ -812,8 +812,17 @@ void microcode_bsp_resume(void) reload_early_microcode(cpu); } -static struct syscore_ops mc_syscore_ops = { - .resume = microcode_bsp_resume, +static void microcode_bsp_syscore_resume(void *data) +{ + microcode_bsp_resume(); +} + +static const struct syscore_ops mc_syscore_ops = { + .resume = microcode_bsp_syscore_resume, +}; + +static struct syscore mc_syscore = { + .ops = &mc_syscore_ops, }; static int mc_cpu_online(unsigned int cpu) @@ -892,7 +901,7 @@ static int __init microcode_init(void) } } - register_syscore_ops(&mc_syscore_ops); + register_syscore(&mc_syscore); cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "x86/microcode:online", mc_cpu_online, mc_cpu_down_prep); -- cgit v1.2.3