scftorture: Count single_rpc offline failures in statistics outputgrafted

scf_torture_stats_print() aggregates each invoker thread's counters
into a local scf_statistics structure before printing, but the
n_single_rpc_ofl field is missing from the aggregation loop.  As a
result, the "single_rpc_ofl" value printed in the statistics line is
always zero, even when smp_call_function_single() invocations for the
RPC test have failed due to offline CPUs and been counted by the
invoker threads.

Add the missing accumulation so that the printed value reflects the
actual counts.

Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

1 files changed, 20 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/sysfs-devices-removable b/Documentation/ABI/testing/sysfs-devices-removable
new file mode 100644
index 000000000..754ecb458
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-devices-removable
@@ -0,0 +1,20 @@
+What:		/sys/devices/.../removable
+Date:		May 2021
+Contact:	Rajat Jain <rajatxjain@gmail.com>
+Description:
+		Information about whether a given device can be removed from the
+		platform by the	user. This is determined by its subsystem in a
+		bus / platform-specific way. This attribute is only present for
+		devices that can support determining such information:
+
+		===========  ===================================================
+		"removable"  device can be removed from the platform by the user
+		"fixed"      device is fixed to the platform / cannot be removed
+			     by the user.
+		"unknown"    The information is unavailable / cannot be deduced.
+		===========  ===================================================
+
+		Currently this is only supported by USB (which infers the
+		information from a combination of hub descriptor bits and
+		platform-specific data such as ACPI) and PCI (which gets this
+		from ACPI / device tree).