Commit ea6a5735 authored by Dave Jiang's avatar Dave Jiang Committed by Vinod Koul
Browse files

dmaengine: idxd: fix opcap sysfs attribute output 



The operation capability register is 256bits. The current output only
prints out the first 64bits. Fix to output the entire 256bits. The current
code omits operation caps from IAX devices.

Fixes: c52ca478 ("dmaengine: idxd: add configuration component of driver")
Reported-by: default avatarLucas Van <lucas.van@intel.com>
Signed-off-by: default avatarDave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/161645624963.2003736.829798666998490151.stgit@djiang5-desk3.ch.intel.com


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent 4ac823e9

drivers/dma/idxd/sysfs.c

+7 −1
Original line number Diff line number Diff line
@@ -1449,8 +1449,14 @@ static ssize_t op_cap_show(struct device *dev, 
{

	struct idxd_device *idxd =

		container_of(dev, struct idxd_device, conf_dev);

	int i, rc = 0;



	for (i = 0; i < 4; i++)

		rc += sysfs_emit_at(buf, rc, "%#llx ", idxd->hw.opcap.bits[i]);



	return sprintf(buf, "%#llx\n", idxd->hw.opcap.bits[0]);

	rc--;

	rc += sysfs_emit_at(buf, rc, "\n");

	return rc;

}

static DEVICE_ATTR_RO(op_cap);