The following commit has been merged into the smp/core branch of tip:
Commit-ID: 7f6707a2040fecfae131752b5097c028885cc161
Gitweb: https://git.kernel.org/tip/7f6707a2040fecfae131752b5097c028885cc161
Author: Qais Yousef <qais.yousef@xxxxxxx>
AuthorDate: Mon, 23 Mar 2020 13:51:04
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitterDate: Wed, 25 Mar 2020 12:59:36 +01:00
sparc: Replace cpu_up/down() with add/remove_cpu()
The core device API performs extra housekeeping bits that are missing
from directly calling cpu_up/down().
See commit a6717c01ddc2 ("powerpc/rtas: use device model APIs and
serialization during LPM") for an example description of what might go
wrong.
This also prepares to make cpu_up/down() a private interface of the CPU
subsystem.
Signed-off-by: Qais Yousef <qais.yousef@xxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Acked-by: David S. Miller <davem@xxxxxxxxxxxxx>
Link: https://lkml.kernel.org/r/20200323135110.30522-12-qais.yousef@xxxxxxx
---
arch/sparc/kernel/ds.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/sparc/kernel/ds.c b/arch/sparc/kernel/ds.c
index bbf59b3..75232cb 100644
--- a/arch/sparc/kernel/ds.c
+++ b/arch/sparc/kernel/ds.c
@@ -555,7 +555,7 @@ static int dr_cpu_configure(struct ds_info *dp, struct ds_cap_state *cp,
printk(KERN_INFO "ds-%llu: Starting cpu %d...\n",
dp->id, cpu);
- err = cpu_up(cpu);
+ err = add_cpu(cpu);
if (err) {
__u32 res = DR_CPU_RES_FAILURE;
__u32 stat = DR_CPU_STAT_UNCONFIGURED;
@@ -611,7 +611,7 @@ static int dr_cpu_unconfigure(struct ds_info *dp,
printk(KERN_INFO "ds-%llu: Shutting down cpu %d...\n",
dp->id, cpu);
- err = cpu_down(cpu);
+ err = remove_cpu(cpu);
if (err)
dr_cpu_mark(resp, cpu, ncpus,
DR_CPU_RES_FAILURE,
|