From: Chao Gao <chao.gao@intel.com>
To: xen-devel@lists.xen.org
Cc: Kevin Tian <kevin.tian@intel.com>, Feng Wu <feng.wu@intel.com>,
Jun Nakajima <jun.nakajima@intel.com>,
George Dunlap <George.Dunlap@eu.citrix.com>,
Andrew Cooper <andrew.cooper3@citrix.com>,
Dario Faggioli <dario.faggioli@citrix.com>,
Jan Beulich <jbeulich@suse.com>, Chao Gao <chao.gao@intel.com>
Subject: [PATCH v9 6/8] VT-d: Some cleanups
Date: Mon, 27 Feb 2017 09:45:47 +0800 [thread overview]
Message-ID: <1488159949-15011-7-git-send-email-chao.gao@intel.com> (raw)
In-Reply-To: <1488159949-15011-1-git-send-email-chao.gao@intel.com>
From: Feng Wu <feng.wu@intel.com>
Use type-safe structure assignment instead of memcpy()
Use sizeof(*iremap_entry).
Signed-off-by: Feng Wu <feng.wu@intel.com>
Signed-off-by: Chao Gao <chao.gao@intel.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Kevin Tian <kevin.tian@intel.com>
---
v9:
- Delete several lines for patch [5/8] has been reworked.
v7:
- Remove a useless cleanup
v6:
- More descripion about the patch
xen/drivers/passthrough/vtd/intremap.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/xen/drivers/passthrough/vtd/intremap.c b/xen/drivers/passthrough/vtd/intremap.c
index 4269cd4..737b886 100644
--- a/xen/drivers/passthrough/vtd/intremap.c
+++ b/xen/drivers/passthrough/vtd/intremap.c
@@ -183,8 +183,8 @@ static void free_remap_entry(struct iommu *iommu, int index)
GET_IREMAP_ENTRY(ir_ctrl->iremap_maddr, index,
iremap_entries, iremap_entry);
- memset(iremap_entry, 0, sizeof(struct iremap_entry));
- iommu_flush_cache_entry(iremap_entry, sizeof(struct iremap_entry));
+ memset(iremap_entry, 0, sizeof(*iremap_entry));
+ iommu_flush_cache_entry(iremap_entry, sizeof(*iremap_entry));
iommu_flush_iec_index(iommu, 0, index);
unmap_vtd_domain_page(iremap_entries);
@@ -310,7 +310,7 @@ static int ioapic_rte_to_remap_entry(struct iommu *iommu,
GET_IREMAP_ENTRY(ir_ctrl->iremap_maddr, index,
iremap_entries, iremap_entry);
- memcpy(&new_ire, iremap_entry, sizeof(struct iremap_entry));
+ new_ire = *iremap_entry;
if ( rte_upper )
{
@@ -353,8 +353,8 @@ static int ioapic_rte_to_remap_entry(struct iommu *iommu,
remap_rte->format = 1; /* indicate remap format */
}
- memcpy(iremap_entry, &new_ire, sizeof(struct iremap_entry));
- iommu_flush_cache_entry(iremap_entry, sizeof(struct iremap_entry));
+ *iremap_entry = new_ire;
+ iommu_flush_cache_entry(iremap_entry, sizeof(*iremap_entry));
iommu_flush_iec_index(iommu, 0, index);
unmap_vtd_domain_page(iremap_entries);
@@ -639,7 +639,7 @@ static int update_irte_for_msi_common(
iremap_entry->hi = new_ire.hi;
}
- iommu_flush_cache_entry(iremap_entry, sizeof(struct iremap_entry));
+ iommu_flush_cache_entry(iremap_entry, sizeof(*iremap_entry));
iommu_flush_iec_index(iommu, 0, index);
}
--
1.8.3.1
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next prev parent reply other threads:[~2017-02-27 1:45 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-27 1:45 [PATCH v9 0/8] VMX: Properly handle pi descriptor and per-cpu Chao Gao
2017-02-27 1:45 ` [PATCH v9 1/8] VMX: Permanently assign PI hook vmx_pi_switch_to() Chao Gao
2017-02-28 16:43 ` Jan Beulich
2017-03-01 0:01 ` Chao Gao
2017-03-01 7:41 ` Jan Beulich
2017-03-03 8:29 ` Tian, Kevin
2017-03-03 10:49 ` Jan Beulich
2017-03-03 11:54 ` Tian, Kevin
2017-02-27 1:45 ` [PATCH v9 2/8] xen/passthrough: Reject self-(de)assignment of devices Chao Gao
2017-02-28 16:46 ` Jan Beulich
2017-02-27 1:45 ` [PATCH v9 3/8] VMX: Properly handle pi when all the assigned devices are removed Chao Gao
2017-03-03 11:51 ` Tian, Kevin
2017-02-27 1:45 ` [PATCH v9 4/8] VMX: Make sure PI is in proper state before install the hooks Chao Gao
2017-02-27 1:45 ` [PATCH v9 5/8] VT-d: Introduce a new function update_irte_for_msi_common Chao Gao
2017-03-02 8:58 ` Jan Beulich
2017-03-02 7:14 ` Chao Gao
2017-03-02 14:32 ` Jan Beulich
2017-02-27 1:45 ` Chao Gao [this message]
2017-02-27 1:45 ` [PATCH v9 7/8] VMX: Fixup PI descriptor when cpu is offline Chao Gao
2017-02-27 1:45 ` [PATCH v9 8/8] VT-d: Add copy_irte_{to, from}_irt for updating irte Chao Gao
2017-03-02 9:03 ` Jan Beulich
2017-03-15 10:38 ` Tian, Kevin
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