From a5bde5d8fde8a8cb28e59a672d5ddc5b9c1e7656 Mon Sep 17 00:00:00 2001 From: Breno Leitao Date: Wed, 5 Aug 2026 07:52:36 -0700 Subject: workqueue: skip the node_nr_active update for non-unbound workqueues apply_wqattrs_commit() updates node_nr_active->max unconditionally. wq->node_nr_active[] is only allocated for unbound workqueues, so guard the call before per-cpu workqueues start using this path. No functional change: only unbound workqueues reach apply_wqattrs_*() today. Signed-off-by: Breno Leitao Signed-off-by: Tejun Heo --- arch/sparc/lib/multi3.S | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 arch/sparc/lib/multi3.S (limited to 'arch/sparc/lib/multi3.S') diff --git a/arch/sparc/lib/multi3.S b/arch/sparc/lib/multi3.S new file mode 100644 index 000000000..5bb4c122a --- /dev/null +++ b/arch/sparc/lib/multi3.S @@ -0,0 +1,36 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#include +#include + + .text + .align 4 +ENTRY(__multi3) /* %o0 = u, %o1 = v */ + mov %o1, %g1 + srl %o3, 0, %o4 + mulx %o4, %g1, %o1 + srlx %g1, 0x20, %g3 + mulx %g3, %o4, %g7 + sllx %g7, 0x20, %o5 + srl %g1, 0, %o4 + sub %o1, %o5, %o5 + srlx %o5, 0x20, %o5 + addcc %g7, %o5, %g7 + srlx %o3, 0x20, %o5 + mulx %o4, %o5, %o4 + mulx %g3, %o5, %o5 + sethi %hi(0x80000000), %g3 + addcc %g7, %o4, %g7 + srlx %g7, 0x20, %g7 + add %g3, %g3, %g3 + movcc %xcc, %g0, %g3 + addcc %o5, %g7, %o5 + sllx %o4, 0x20, %o4 + add %o1, %o4, %o1 + add %o5, %g3, %g2 + mulx %g1, %o2, %g1 + add %g1, %g2, %g1 + mulx %o0, %o3, %o0 + retl + add %g1, %o0, %o0 +ENDPROC(__multi3) +EXPORT_SYMBOL(__multi3) -- cgit v1.3.1