Messages in this thread Patch in this message | | | From | Gilad Ben-Yossef <> | Subject | [PATCH] staging: ccree: fix 64 bit scatter/gather DMA ops | Date | Mon, 30 Oct 2017 13:38:03 +0000 |
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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> Cc: stable@vger.kernel.org --- drivers/staging/ccree/cc_lli_defs.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/ccree/cc_lli_defs.h b/drivers/staging/ccree/cc_lli_defs.h index 851d390..a9c417b 100644 --- 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 */ } -- 2.7.4
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