Re: [PATCH v2 5/9] staging: ccree: add AEAD support

[kbuild test robot]

Hi Gilad,

[auto build test WARNING on linus/master]
[also build test WARNING on v4.11-rc7]
[cannot apply to staging/staging-testing next-20170420]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Gilad-Ben-Yossef/staging-ccree-add-Arm-TrustZone-CryptoCell-REE-driver/20170420-222023


coccinelle warnings: (new ones prefixed by >>)

>> drivers/staging/ccree/ssi_buffer_mgr.c:758:2-4: ERROR: test of a variable/field address

vim +758 drivers/staging/ccree/ssi_buffer_mgr.c

   742		
   743			if (areq_ctx->gcm_iv_inc2_dma_addr != 0) {
   744				SSI_RESTORE_DMA_ADDR_TO_48BIT(areq_ctx->gcm_iv_inc2_dma_addr);
   745				dma_unmap_single(dev, areq_ctx->gcm_iv_inc2_dma_addr, 
   746					AES_BLOCK_SIZE, DMA_TO_DEVICE);
   747			}
   748		}
   749	#endif
   750	
   751		if (areq_ctx->ccm_hdr_size != ccm_header_size_null) {
   752			if (areq_ctx->ccm_iv0_dma_addr != 0) {
   753				SSI_RESTORE_DMA_ADDR_TO_48BIT(areq_ctx->ccm_iv0_dma_addr);
   754				dma_unmap_single(dev, areq_ctx->ccm_iv0_dma_addr, 
   755					AES_BLOCK_SIZE, DMA_TO_DEVICE);
   756			}
   757	
 > 758			if (&areq_ctx->ccm_adata_sg != NULL)
   759				dma_unmap_sg(dev, &areq_ctx->ccm_adata_sg,
   760					1, DMA_TO_DEVICE);
   761		}
   762		if (areq_ctx->gen_ctx.iv_dma_addr != 0) {
   763			SSI_RESTORE_DMA_ADDR_TO_48BIT(areq_ctx->gen_ctx.iv_dma_addr);
   764			dma_unmap_single(dev, areq_ctx->gen_ctx.iv_dma_addr,
   765					 hw_iv_size, DMA_BIDIRECTIONAL);
   766		}

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