diff --git a/arch/arm64/include/asm/exec.h b/arch/arm64/include/asm/exec.h index db0563c23482..f7865dd9d868 100644 --- a/arch/arm64/include/asm/exec.h +++ b/arch/arm64/include/asm/exec.h @@ -18,6 +18,9 @@ #ifndef __ASM_EXEC_H #define __ASM_EXEC_H +#include + extern unsigned long arch_align_stack(unsigned long sp); +void uao_thread_switch(struct task_struct *next); #endif /* __ASM_EXEC_H */ diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c index 6f3fb46170bf..e6afea67f6c1 100644 --- a/arch/arm64/kernel/process.c +++ b/arch/arm64/kernel/process.c @@ -49,6 +49,7 @@ #include #include #include +#include #include #include #include @@ -379,7 +380,7 @@ static void tls_thread_switch(struct task_struct *next) } /* Restore the UAO state depending on next's addr_limit */ -static void uao_thread_switch(struct task_struct *next) +void uao_thread_switch(struct task_struct *next) { if (IS_ENABLED(CONFIG_ARM64_UAO)) { if (task_thread_info(next)->addr_limit == KERNEL_DS) diff --git a/arch/arm64/kernel/suspend.c b/arch/arm64/kernel/suspend.c index 5a0b1088c17c..0acdb63d19b6 100644 --- a/arch/arm64/kernel/suspend.c +++ b/arch/arm64/kernel/suspend.c @@ -5,6 +5,7 @@ #include #include #include +#include #include #include #include @@ -95,6 +96,7 @@ int cpu_suspend(unsigned long arg, int (*fn)(unsigned long)) */ asm(ALTERNATIVE("nop", SET_PSTATE_PAN(1), ARM64_HAS_PAN, CONFIG_ARM64_PAN)); + uao_thread_switch(current); /* * Restore HW breakpoint registers to sane values