With CONFIG_DEBUG_PREEMPT=y, the put_cpu_ptr() triggiers an underflow warning in preempt_count_sub(). Fixes: 37cdd991fac8 ("vmbus: put related per-cpu variable together") Cc: stable@xxxxxxxxxxxxxxx Cc: Stephen Hemminger <sthemmin@xxxxxxxxxxxxx> Signed-off-by: Dexuan Cui <decui@xxxxxxxxxxxxx> --- drivers/hv/hv.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c index 632d25674e7f..45653029ee18 100644 --- a/drivers/hv/hv.c +++ b/drivers/hv/hv.c @@ -408,7 +408,6 @@ int hv_synic_cleanup(unsigned int cpu) clockevents_unbind_device(hv_cpu->clk_evt, cpu); hv_ce_shutdown(hv_cpu->clk_evt); - put_cpu_ptr(hv_cpu); } hv_get_synint_state(VMBUS_MESSAGE_SINT, shared_sint.as_uint64); -- 2.19.1 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel