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Groups > linux.kernel > #1286591
| From | Arnd Bergmann <arnd@arndb.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 1/2] crypto: sahara: fix 64-bit dma_addr_t compilation |
| Date | 2015-12-08 16:30 +0100 |
| Message-ID | <qDsng-44U-27@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
The sahara hardware uses DMA descriptors with 32-bit addresses, but
dma_addr_t is variable size depending on whether we want to support
any devices that use 64-bit DMA addresses in hardware.
This means that the definition of the DMA descriptor structure is wrong,
and we helpfully get a compiler warning about them too:
drivers/crypto/sahara.c:423:372: warning: format '%x' expects argument of type 'unsigned int', but argument 4 has type 'dma_addr_t {aka long long unsigned int}' [-Wformat=]
This changes the definition of the sahara_hw_desc and sahara_hw_link
structures to only contain fixed-length members, which is required
to make the driver work on ARM LPAE mode, and avoids most of the
gcc warnings we get.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/crypto/sahara.c | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)
diff --git a/drivers/crypto/sahara.c b/drivers/crypto/sahara.c
index cc738f3592a3..38bf12ae5589 100644
--- a/drivers/crypto/sahara.c
+++ b/drivers/crypto/sahara.c
@@ -130,18 +130,18 @@
#define SAHARA_REG_IDAR 0x20
struct sahara_hw_desc {
- u32 hdr;
- u32 len1;
- dma_addr_t p1;
- u32 len2;
- dma_addr_t p2;
- dma_addr_t next;
+ u32 hdr;
+ u32 len1;
+ u32 p1;
+ u32 len2;
+ u32 p2;
+ u32 next;
};
struct sahara_hw_link {
- u32 len;
- dma_addr_t p;
- dma_addr_t next;
+ u32 len;
+ u32 p;
+ u32 next;
};
struct sahara_ctx {
--
2.1.0.rc2
--
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[PATCH 1/2] crypto: sahara: fix 64-bit dma_addr_t compilation Arnd Bergmann <arnd@arndb.de> - 2015-12-08 16:30 +0100 [PATCH 2/2] crypto: sahara: fix debug output for 64-bit dma_addr_t Arnd Bergmann <arnd@arndb.de> - 2015-12-08 16:30 +0100 Re: [PATCH 1/2] crypto: sahara: fix 64-bit dma_addr_t compilation Herbert Xu <herbert@gondor.apana.org.au> - 2015-12-11 04:10 +0100
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