linux-kernel - [PATCH] mtd: fix size in mtd_info

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Message-ID: <20210708131359.21591-1-linmiaohe@huawei.com>
Date:   Thu, 8 Jul 2021 21:13:59 +0800
From:   Miaohe Lin <linmiaohe@...wei.com>
To:     <miquel.raynal@...tlin.com>, <richard@....at>, <vigneshr@...com>
CC:     <David.Woodhouse@...el.com>, <Artem.Bityutskiy@...ia.com>,
        <ext-adrian.hunter@...ia.com>, <linux-kernel@...r.kernel.org>,
        <linux-mtd@...ts.infradead.org>, <linmiaohe@...wei.com>,
        <linfeilong@...wei.com>
Subject: [PATCH] mtd: fix size in mtd_info_user to support 64-bit

From: Feilong Lin <linfeilong@...wei.com>

The size in struct mtd_info_user is 32-bit, which will cause errors
when obtaining the size of large-capacity MTD devices, such as TLC
NAND FLASH-2048Gb.

Fixes: 69423d99fc18 ("[MTD] update internal API to support 64-bit device size")
Signed-off-by: Feilong Lin <linfeilong@...wei.com>
---
 include/uapi/mtd/mtd-abi.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/uapi/mtd/mtd-abi.h b/include/uapi/mtd/mtd-abi.h
index b869990c2db2..efe0b53b10c1 100644
--- a/include/uapi/mtd/mtd-abi.h
+++ b/include/uapi/mtd/mtd-abi.h
@@ -128,7 +128,7 @@ struct mtd_write_req {
 struct mtd_info_user {
 	__u8 type;
 	__u32 flags;
-	__u32 size;	/* Total size of the MTD */
+	__u64 size;	/* Total size of the MTD */
 	__u32 erasesize;
 	__u32 writesize;
 	__u32 oobsize;	/* Amount of OOB data per block (e.g. 16) */
-- 
2.23.0