diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2021-03-22 16:37:29 -0700 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2021-04-12 13:26:03 +0530 |
| commit | ea6a5735d2a61b938a302eb3629272342a9e7c46 (patch) | |
| tree | 576fd1ca71333acb8105a9c4d23a5c02b6de3643 /drivers/dma | |
| parent | 4ac823e9cd85f66da274c951d21bf9f6b714b729 (diff) | |
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: c52ca478233c ("dmaengine: idxd: add configuration component of driver")
Reported-by: Lucas Van <lucas.van@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/161645624963.2003736.829798666998490151.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/idxd/sysfs.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/dma/idxd/sysfs.c b/drivers/dma/idxd/sysfs.c index 4dbb03c545e4..c27ca01cf8b2 100644 --- a/drivers/dma/idxd/sysfs.c +++ b/drivers/dma/idxd/sysfs.c @@ -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); |