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Commit de3415ce authored by Sudarshan Rajagopalan's avatar Sudarshan Rajagopalan
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dma-mapping-fast: Fix erroneous MAIR idx calculation 



Fix the erroneous PTE MAIR calculation by using the right operator.

Change-Id: I061b4e9f7599d0f43001adfb531b58e3bfd1a3c8
Signed-off-by: default avatarSudarshan Rajagopalan <sudaraja@codeaurora.org>
parent 93df147c

drivers/iommu/io-pgtable-fast.c

+2 −2
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/*

 * Copyright (c) 2016-2018, The Linux Foundation. All rights reserved.

 * Copyright (c) 2016-2019, The Linux Foundation. All rights reserved.

 */



#define pr_fmt(fmt)	"io-pgtable-fast: " fmt
@@ -138,7 +138,7 @@ struct av8l_fast_io_pgtable { 
#define AV8L_FAST_PAGE_SHIFT		12



#define PTE_MAIR_IDX(pte)				\

	((pte >> AV8L_FAST_PTE_ATTRINDX_SHIFT) &&	\

	((pte >> AV8L_FAST_PTE_ATTRINDX_SHIFT) &	\

	 AV8L_FAST_PTE_ATTRINDX_MASK)



#define PTE_SH_IDX(pte) (pte & AV8L_FAST_PTE_SH_MASK)