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From: Peter Mamonov <pmamonov@gmail.com>
To: barebox@lists.infradead.org
Cc: Peter Mamonov <pmamonov@gmail.com>
Subject: [PATCH v3 03/12] mtd: cfi-flash: fix write_buff() for 64 bit systems
Date: Tue, 22 May 2018 18:33:33 +0300	[thread overview]
Message-ID: <20180522153342.24933-4-pmamonov@gmail.com> (raw)
In-Reply-To: <20180522153342.24933-1-pmamonov@gmail.com>

write_buff() uses ~(flash_info.portwidth - 1) to mask lower bits of addr. This
causes higher 32 bits of addr to be discarded on a 64 bit system, since
flash_info.portwidth is 32 bits long (unsigned int) and addr is 64 bits long
(unsigned long).

Signed-off-by: Peter Mamonov <pmamonov@gmail.com>
---
 drivers/mtd/nor/cfi_flash.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/nor/cfi_flash.c b/drivers/mtd/nor/cfi_flash.c
index 5bdcccae1..01ab1aa27 100644
--- a/drivers/mtd/nor/cfi_flash.c
+++ b/drivers/mtd/nor/cfi_flash.c
@@ -515,7 +515,7 @@ static int write_buff(struct flash_info *info, const u8 *src,
 	int buffered_size;
 #endif
 	/* get lower aligned address */
-	wp = addr & ~(info->portwidth - 1);
+	wp = addr & ~((unsigned long)info->portwidth - 1);
 
 	/* handle unaligned start */
 	aln = addr - wp;
-- 
2.17.0


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  parent reply	other threads:[~2018-05-22 15:34 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-22 15:33 [PATCH v3 00/12] various fixes for MIPS64 Peter Mamonov
2018-05-22 15:33 ` [PATCH v3 01/12] resource: fix iomem_resource.end for 64 bit systems Peter Mamonov
2018-05-22 15:33 ` [PATCH v3 02/12] fs: fix memory access via /dev/mem for MIPS64 Peter Mamonov
2018-05-24 10:47   ` Sascha Hauer
2018-05-24 14:01     ` [PATCH v4] " Peter Mamonov
2018-06-13  8:31       ` Sascha Hauer
2018-06-13 16:17         ` [RESEND " Peter Mamonov
2018-06-14  5:36           ` Sascha Hauer
2018-05-22 15:33 ` Peter Mamonov [this message]
2018-05-22 15:33 ` [PATCH v3 04/12] i2c-mux-pca954x: fix out-of-bounds write for 64 bit systems Peter Mamonov
2018-05-22 15:33 ` [PATCH v3 05/12] MIPS: import 64-bit address conversion macros Peter Mamonov
2018-05-22 15:33 ` [PATCH v3 06/12] include/common.h: move IOMEM declaration for MIPS to arch/mips/include/asm/io.h Peter Mamonov
2018-05-22 15:33 ` [PATCH v3 07/12] MIPS: add proper IOMEM() declaration for MIPS64 Peter Mamonov
2018-05-22 15:33 ` [PATCH v3 08/12] MIPS: fix copy_to_link_location for 64 bit mode Peter Mamonov
2018-05-22 15:33 ` [PATCH v3 09/12] MIPS: use CKSEG1 instead of KSEG1 Peter Mamonov
2018-05-22 15:33 ` [PATCH v3 10/12] MIPS: add PHYS_ADDR_T_64BIT option Peter Mamonov
2018-05-22 15:33 ` [PATCH v3 11/12] MIPS: 64BIT selects PHYS_ADDR_T_64BIT Peter Mamonov
2018-05-22 15:33 ` [PATCH v3 12/12] MIPS: don't use optimized string functions for MIPS64 Peter Mamonov
2018-05-23  8:11 ` [PATCH v3 00/12] various fixes " Sascha Hauer

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