From: Christos Gkekas <chris.gekas@gmail.com>
To: David Woodhouse <dwmw2@infradead.org>,
Joerg Roedel <joro@8bytes.org>,
iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org
Cc: Christos Gkekas <chris.gekas@gmail.com>
Subject: [PATCH] iommu/vt-d: Delete unnecessary check
Date: Sun, 8 Oct 2017 23:33:31 +0100 [thread overview]
Message-ID: <1507502011-18062-1-git-send-email-chris.gekas@gmail.com> (raw)
Variable did_old is unsigned so checking whether it is greater or equal
to zero is not necessary.
Signed-off-by: Christos Gkekas <chris.gekas@gmail.com>
---
drivers/iommu/intel-iommu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index ebb4835..cb7ce99 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -2054,7 +2054,7 @@ static int domain_context_mapping_one(struct dmar_domain *domain,
if (context_copied(context)) {
u16 did_old = context_domain_id(context);
- if (did_old >= 0 && did_old < cap_ndoms(iommu->cap)) {
+ if (did_old < cap_ndoms(iommu->cap)) {
iommu->flush.flush_context(iommu, did_old,
(((u16)bus) << 8) | devfn,
DMA_CCMD_MASK_NOBIT,
--
2.7.4
next reply other threads:[~2017-10-08 22:33 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-08 22:33 Christos Gkekas [this message]
2017-10-10 12:10 ` [PATCH] iommu/vt-d: Delete unnecessary check Joerg Roedel
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1507502011-18062-1-git-send-email-chris.gekas@gmail.com \
--to=chris.gekas@gmail.com \
--cc=dwmw2@infradead.org \
--cc=iommu@lists.linux-foundation.org \
--cc=joro@8bytes.org \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).