diff options
| -rw-r--r-- | arch/arm64/kernel/process.c | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c index 3bb7f65bf7b7..27a5b0c7ec60 100644 --- a/arch/arm64/kernel/process.c +++ b/arch/arm64/kernel/process.c @@ -355,16 +355,13 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src) *dst = *src; /* - * Detach src's sve_state (if any) from dst so that it does not - * get erroneously used or freed prematurely. dst's copies - * will be allocated on demand later on if dst uses SVE. - * For consistency, also clear TIF_SVE here: this could be done - * later in copy_process(), but to avoid tripping up future - * maintainers it is best not to leave TIF flags and buffers in - * an inconsistent state, even temporarily. + * Drop stale reference to src's sve_state and convert dst to + * non-streaming FPSIMD mode. */ + dst->thread.fp_type = FP_STATE_FPSIMD; dst->thread.sve_state = NULL; clear_tsk_thread_flag(dst, TIF_SVE); + task_smstop_sm(dst); /* * In the unlikely event that we create a new thread with ZA @@ -393,8 +390,6 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src) clear_tsk_thread_flag(dst, TIF_SME); } - dst->thread.fp_type = FP_STATE_FPSIMD; - /* clear any pending asynchronous tag fault raised by the parent */ clear_tsk_thread_flag(dst, TIF_MTE_ASYNC_FAULT); |