From: Kashyap, Desai Date: Wed, 2 Sep 2009 06:14:57 +0000 (+0530) Subject: [SCSI] mptsas : PAE Kernel more than 4 GB kernel panic X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=c55b89fba9872ebcd5ac15cdfdad29ffb89329f0;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git [SCSI] mptsas : PAE Kernel more than 4 GB kernel panic This patch is solving problem for PAE kernel DMA operation. On PAE system dma_addr and unsigned long will have different values. Now dma_addr is not type casted using unsigned long. Signed-off-by: Kashyap Desai Signed-off-by: James Bottomley --- diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c index 8ab7b37ed70d..76fa2ee0b574 100644 --- a/drivers/message/fusion/mptbase.c +++ b/drivers/message/fusion/mptbase.c @@ -1015,9 +1015,9 @@ mpt_add_sge_64bit(void *pAddr, u32 flagslength, dma_addr_t dma_addr) { SGESimple64_t *pSge = (SGESimple64_t *) pAddr; pSge->Address.Low = cpu_to_le32 - (lower_32_bits((unsigned long)(dma_addr))); + (lower_32_bits(dma_addr)); pSge->Address.High = cpu_to_le32 - (upper_32_bits((unsigned long)dma_addr)); + (upper_32_bits(dma_addr)); pSge->FlagsLength = cpu_to_le32 ((flagslength | MPT_SGE_FLAGS_64_BIT_ADDRESSING)); } @@ -1038,8 +1038,8 @@ mpt_add_sge_64bit_1078(void *pAddr, u32 flagslength, dma_addr_t dma_addr) u32 tmp; pSge->Address.Low = cpu_to_le32 - (lower_32_bits((unsigned long)(dma_addr))); - tmp = (u32)(upper_32_bits((unsigned long)dma_addr)); + (lower_32_bits(dma_addr)); + tmp = (u32)(upper_32_bits(dma_addr)); /* * 1078 errata workaround for the 36GB limitation @@ -1101,7 +1101,7 @@ mpt_add_chain_64bit(void *pAddr, u8 next, u16 length, dma_addr_t dma_addr) pChain->NextChainOffset = next; pChain->Address.Low = cpu_to_le32(tmp); - tmp = (u32)(upper_32_bits((unsigned long)dma_addr)); + tmp = (u32)(upper_32_bits(dma_addr)); pChain->Address.High = cpu_to_le32(tmp); }