Re: [PATCH] iommu/amd: fix missing tag from dev_err message

From: Gary R Hook
Date: Tue Jul 03 2018 - 08:57:07 EST

On 07/03/2018 05:07 AM, Joe Perches wrote:
On Tue, 2018-07-03 at 07:40 +0100, Colin King wrote:
Currently tag is being assigned but not used, it is missing from
the dev_err message, so add it in.

Cleans up clang warning:
warning: variable 'tag' set but not used [-Wunused-but-set-variable]
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
@@ -616,9 +616,9 @@ static void iommu_print_event(struct amd_iommu *iommu, void *__evt)
pasid = ((event[0] >> 16) & 0xFFFF)
| ((event[1] << 6) & 0xF0000);
tag = event[1] & 0x03FF;
- dev_err(dev, "INVALID_PPR_REQUEST device=%02x:%02x.%x pasid=0x%05x address=0x%016llx flags=0x%04x]\n",
+ dev_err(dev, "INVALID_PPR_REQUEST device=%02x:%02x.%x pasid=0x%05x address=0x%016llx flags=0x%04x tag=0x%03x]\n",
PCI_BUS_NUM(devid), PCI_SLOT(devid), PCI_FUNC(devid),
- pasid, address, flags);
+ pasid, address, flags, tag);

Seems to have a superfluous ] that should be removed.

Yeah, I pretty much messed up all of the log messages in that function. My apologies. I'll create a patch for that problem; it shouldn't be fixed here.