From: YueHaibing <yuehaibing@huawei.com>
To: Joerg Roedel <joro@8bytes.org>
Cc: Yue Haibing <yuehaibing@huawei.com>,
<iommu@lists.linux-foundation.org>,
<linux-kernel@vger.kernel.org>, <kernel-janitors@vger.kernel.org>
Subject: [PATCH -next] iommu/amd: remove set but not used variable 'tag'
Date: Thu, 8 Nov 2018 06:12:40 +0000 [thread overview]
Message-ID: <1541657560-73681-1-git-send-email-yuehaibing@huawei.com> (raw)
From: Yue Haibing <yuehaibing@huawei.com>
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/iommu/amd_iommu.c: In function 'iommu_print_event':
drivers/iommu/amd_iommu.c:550:33: warning:
variable 'tag' set but not used [-Wunused-but-set-variable]
It never used since introduction in
commit e7f63ffc1bf1 ("iommu/amd: Update logging information for new event type")
Signed-off-by: Yue Haibing <yuehaibing@huawei.com>
---
drivers/iommu/amd_iommu.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 4e04fff..58a7834 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -547,7 +547,7 @@ static void amd_iommu_report_page_fault(u16 devid, u16 domain_id,
static void iommu_print_event(struct amd_iommu *iommu, void *__evt)
{
struct device *dev = iommu->iommu.dev;
- int type, devid, pasid, flags, tag;
+ int type, devid, pasid, flags;
volatile u32 *event = __evt;
int count = 0;
u64 address;
@@ -615,7 +615,6 @@ static void iommu_print_event(struct amd_iommu *iommu, void *__evt)
case EVENT_TYPE_INV_PPR_REQ:
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",
PCI_BUS_NUM(devid), PCI_SLOT(devid), PCI_FUNC(devid),
pasid, address, flags);
next reply other threads:[~2018-11-08 6:03 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-08 6:12 YueHaibing [this message]
2018-11-08 9:32 ` [PATCH -next] iommu/amd: remove set but not used variable 'tag' Joerg Roedel
2018-11-08 11:12 ` YueHaibing
2018-11-08 11:57 ` [PATCH -next] iommu/amd: Add missed 'tag' to error msg in iommu_print_event YueHaibing
2018-11-08 14:04 ` Joerg Roedel
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