This is a note to let you know that I've just added the patch titled
PCI/switchtec: Read all 64 bits of part_event_bitmap
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
pci-switchtec-read-all-64-bits-of-part_event_bitmap.patch
and it can be found in the queue-4.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 6acdf7e19b37cb3a9258603d0eab315079c19c5e Mon Sep 17 00:00:00 2001
From: Logan Gunthorpe <logang@xxxxxxxxxxxx>
Date: Tue, 10 Sep 2019 13:58:33 -0600
Subject: PCI/switchtec: Read all 64 bits of part_event_bitmap
From: Logan Gunthorpe <logang@xxxxxxxxxxxx>
commit 6acdf7e19b37cb3a9258603d0eab315079c19c5e upstream.
The part_event_bitmap register is 64 bits wide, so read it with ioread64()
instead of the 32-bit ioread32().
Fixes: 52eabba5bcdb ("switchtec: Add IOCTLs to the Switchtec driver")
Link: https://lore.kernel.org/r/20190910195833.3891-1-logang@xxxxxxxxxxxx
Reported-by: Doug Meyer <dmeyer@xxxxxxxxxx>
Signed-off-by: Logan Gunthorpe <logang@xxxxxxxxxxxx>
Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx # v4.12+
Cc: Kelvin Cao <Kelvin.Cao@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/pci/switch/switchtec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/pci/switch/switchtec.c
+++ b/drivers/pci/switch/switchtec.c
@@ -633,7 +633,7 @@ static int ioctl_event_summary(struct sw
u32 reg;
s.global = ioread32(&stdev->mmio_sw_event->global_summary);
- s.part_bitmap = ioread32(&stdev->mmio_sw_event->part_event_bitmap);
+ s.part_bitmap = readq(&stdev->mmio_sw_event->part_event_bitmap);
s.local_part = ioread32(&stdev->mmio_part_cfg->part_event_summary);
for (i = 0; i < stdev->partition_count; i++) {
Patches currently in stable-queue which might be from logang@xxxxxxxxxxxx are
queue-4.19/pci-switchtec-read-all-64-bits-of-part_event_bitmap.patch
