Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Catalin Marinas:

 - A couple of SME updates for recent fixes (one of which went to
   stable): reverting the flushing of the SME hardware state along with
   the thread flushing and making sure we have the correct vector length
   before reallocating.

 - An ACPI/IORT fix to avoid skipping ID mappings whose "number of IDs"
   is 0 (the spec reports the number of IDs in the mapping range minus
   1).

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  ACPI/IORT: Remove erroneous id_count check in iort_node_get_rmr_info()
  arm64/sme: Set new vector length before reallocating
  arm64/fpsimd: Don't flush SME register hardware state along with thread

1 files changed, 2 insertions, 3 deletions

diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c
index 89d54a5242d1..520b681a07bb 100644
--- a/arch/arm64/kernel/fpsimd.c
+++ b/arch/arm64/kernel/fpsimd.c
@@ -917,6 +917,8 @@ int vec_set_vector_length(struct task_struct *task, enum vec_type type,
 	if (task == current)
 		put_cpu_fpsimd_context();
 
+	task_set_vl(task, type, vl);
+
 	/*
 	 * Free the changed states if they are not in use, SME will be
 	 * reallocated to the correct size on next use and we just
@@ -931,8 +933,6 @@ int vec_set_vector_length(struct task_struct *task, enum vec_type type,
 	if (free_sme)
 		sme_free(task);
 
-	task_set_vl(task, type, vl);
-
 out:
 	update_tsk_thread_flag(task, vec_vl_inherit_flag(type),
 			       flags & PR_SVE_VL_INHERIT);
@@ -1666,7 +1666,6 @@ void fpsimd_flush_thread(void)
 
 		fpsimd_flush_thread_vl(ARM64_VEC_SME);
 		current->thread.svcr = 0;
-		sme_smstop();
 	}
 
 	current->thread.fp_type = FP_STATE_FPSIMD;