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authorYuval Mintz <Yuval.Mintz@qlogic.com>2016-06-04 08:20:16 +0300
committerDavid S. Miller <davem@davemloft.net>2016-06-03 22:42:26 -0700
commit81b1251d3b761b303955408dd6a49618b5683c2b (patch)
tree1a5719ba93f79c7d19bd45c1bc55d1255fa30d71 /include/linux/qed
parent03c7f70beee4c5d34881e5d3dd2b6f3e848047ef (diff)
qed: Fix next-ptr chains for BE / 32-bit
Commit a91eb52abb50 ("qed: Revisit chain implementation") contains an incorrect implementation for BE platforms, as device's regpairs containing addresses are LE and they're not converted correctly when read back. In addition, it raises a compilation warning for 32-bit platforms where dma_addr_t is a 32-bit variable. Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/qed')
-rw-r--r--include/linux/qed/qed_chain.h3
1 files changed, 1 insertions, 2 deletions
diff --git a/include/linux/qed/qed_chain.h b/include/linux/qed/qed_chain.h
index eceaa9ed2ae9..7e441bdeabdc 100644
--- a/include/linux/qed/qed_chain.h
+++ b/include/linux/qed/qed_chain.h
@@ -25,10 +25,9 @@
} while (0)
#define HILO_GEN(hi, lo, type) ((((type)(hi)) << 32) + (lo))
-#define HILO_DMA(hi, lo) HILO_GEN(hi, lo, dma_addr_t)
#define HILO_64(hi, lo) HILO_GEN((le32_to_cpu(hi)), (le32_to_cpu(lo)), u64)
-#define HILO_DMA_REGPAIR(regpair) (HILO_DMA(regpair.hi, regpair.lo))
#define HILO_64_REGPAIR(regpair) (HILO_64(regpair.hi, regpair.lo))
+#define HILO_DMA_REGPAIR(regpair) ((dma_addr_t)HILO_64_REGPAIR(regpair))
enum qed_chain_mode {
/* Each Page contains a next pointer at its end */