From: dirk.behme@gmail.com (Dirk Behme)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] arm: dma-mapping: add cast to DMA_ERROR_CODE
Date: Sat, 15 Aug 2015 17:52:51 +0200 [thread overview]
Message-ID: <1439653971-867-1-git-send-email-dirk.behme@gmail.com> (raw)
Fix the compiler warning
./arch/arm/include/asm/dma-mapping.h: In function ?dma_mapping_error?:
./arch/arm/include/asm/dma-mapping.h:176:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
return dma_addr == DMA_ERROR_CODE;
^
we get building the kernel with W=1.
This is done the same way we have already in the arm64 version.
Signed-off-by: Dirk Behme <dirk.behme@gmail.com>
---
arch/arm/include/asm/dma-mapping.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index b52101d..68e41e8 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -14,7 +14,7 @@
#include <xen/xen.h>
#include <asm/xen/hypervisor.h>
-#define DMA_ERROR_CODE (~0)
+#define DMA_ERROR_CODE (~(dma_addr_t)0)
extern struct dma_map_ops arm_dma_ops;
extern struct dma_map_ops arm_coherent_dma_ops;
--
2.5.0
next reply other threads:[~2015-08-15 15:52 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-15 15:52 Dirk Behme [this message]
2015-09-23 9:38 ` [PATCH] arm: dma-mapping: add cast to DMA_ERROR_CODE Dirk Behme
2015-09-23 9:51 ` Russell King - ARM Linux
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=1439653971-867-1-git-send-email-dirk.behme@gmail.com \
--to=dirk.behme@gmail.com \
--cc=linux-arm-kernel@lists.infradead.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).