From fc8695eb11f07d936a4a9dbd15d7797986bc8b89 Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Fri, 14 Oct 2022 09:07:46 -0700 Subject: Revert "net: fix cpu_max_bits_warn() usage in netif_attrmask_next{,_and}" This reverts commit 854701ba4c39afae2362ba19a580c461cb183e4f. We have more violations around, which leads to: WARNING: CPU: 2 PID: 1 at include/linux/cpumask.h:110 __netif_set_xps_queue+0x14e/0x770 Let's back this out and retry with a larger clean up in -next. Fixes: 854701ba4c39 ("net: fix cpu_max_bits_warn() usage in netif_attrmask_next{,_and}") Link: https://lore.kernel.org/all/20221014030459.3272206-2-guoren@kernel.org/ Signed-off-by: Jakub Kicinski Signed-off-by: David S. Miller --- include/linux/netdevice.h | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index a36edb0ec199..eddf8ee270e7 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -3663,8 +3663,9 @@ static inline bool netif_attr_test_online(unsigned long j, static inline unsigned int netif_attrmask_next(int n, const unsigned long *srcp, unsigned int nr_bits) { - /* n is a prior cpu */ - cpu_max_bits_warn(n + 1, nr_bits); + /* -1 is a legal arg here. */ + if (n != -1) + cpu_max_bits_warn(n, nr_bits); if (srcp) return find_next_bit(srcp, nr_bits, n + 1); @@ -3685,8 +3686,9 @@ static inline int netif_attrmask_next_and(int n, const unsigned long *src1p, const unsigned long *src2p, unsigned int nr_bits) { - /* n is a prior cpu */ - cpu_max_bits_warn(n + 1, nr_bits); + /* -1 is a legal arg here. */ + if (n != -1) + cpu_max_bits_warn(n, nr_bits); if (src1p && src2p) return find_next_and_bit(src1p, src2p, nr_bits, n + 1); -- cgit v1.2.3