staging: ccree: fix 64 bit scatter/gather DMA ops

commit e0b3f39092a1cff5548cbaf40096ec25e7721de6 upstream.

Fix a wrong offset used in splitting a 64 DMA address to MSB/LSB
parts needed for scatter/gather HW descriptors causing operations
relying on them to fail on 64 bit platforms.

Fixes: c6f7f2f4591f ("staging: ccree: refactor LLI access macros")
Reported-by: Stuart Yoder <stuart.yoder@arm.com>
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/ccree/cc_lli_defs.h b/drivers/staging/ccree/cc_lli_defs.h
index 851d390..a9c417b 100644 (file)
--- a/drivers/staging/ccree/cc_lli_defs.h
+++ b/drivers/staging/ccree/cc_lli_defs.h
@@ -59,7 +59,7 @@ static inline void cc_lli_set_addr(u32 *lli_p, dma_addr_t addr)
        lli_p[LLI_WORD0_OFFSET] = (addr & U32_MAX);
 #ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
        lli_p[LLI_WORD1_OFFSET] &= ~LLI_HADDR_MASK;
-       lli_p[LLI_WORD1_OFFSET] |= FIELD_PREP(LLI_HADDR_MASK, (addr >> 16));
+       lli_p[LLI_WORD1_OFFSET] |= FIELD_PREP(LLI_HADDR_MASK, (addr >> 32));
 #endif /* CONFIG_ARCH_DMA_ADDR_T_64BIT */
 }