linux-kernel - [PATCH] fs/ntfs3: Remove fat ioctl's from ntfs3 driver for now

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Message-Id: <20210824182020.1007329-1-kari.argillander@gmail.com>
Date:   Tue, 24 Aug 2021 21:20:20 +0300
From:   Kari Argillander <kari.argillander@...il.com>
To:     Konstantin Komarov <almaz.alexandrovich@...agon-software.com>,
        ntfs3@...ts.linux.dev
Cc:     Kari Argillander <kari.argillander@...il.com>,
        linux-kernel@...r.kernel.org,
        Pali Rohár <pali@...nel.org>
Subject: [PATCH] fs/ntfs3: Remove fat ioctl's from ntfs3 driver for now

For some reason we have FAT ioctl calls. Even old ntfs driver did not
use these. We should not use these because it his hard to get things out
of kernel when they are upstream. That's why we remove these for now.

More discussion is needed what ioctl should be implemented and what is
important.

Signed-off-by: Kari Argillander <kari.argillander@...il.com>
---
Earlier disgussion with Pali can be founded here:
lore.kernel.org/linux-fsdevel/20210824113304.eabzy7ulbuouzlac@...i/
---
 fs/ntfs3/file.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/fs/ntfs3/file.c b/fs/ntfs3/file.c
index 59344985c2e8..819afc4c902b 100644
--- a/fs/ntfs3/file.c
+++ b/fs/ntfs3/file.c
@@ -10,7 +10,6 @@
 #include <linux/compat.h>
 #include <linux/falloc.h>
 #include <linux/fiemap.h>
-#include <linux/msdos_fs.h> /* FAT_IOCTL_XXX */
 #include <linux/nls.h>
 
 #include "debug.h"
@@ -50,15 +49,8 @@ static long ntfs_ioctl(struct file *filp, u32 cmd, unsigned long arg)
 {
 	struct inode *inode = file_inode(filp);
 	struct ntfs_sb_info *sbi = inode->i_sb->s_fs_info;
-	u32 __user *user_attr = (u32 __user *)arg;
 
 	switch (cmd) {
-	case FAT_IOCTL_GET_ATTRIBUTES:
-		return put_user(le32_to_cpu(ntfs_i(inode)->std_fa), user_attr);
-
-	case FAT_IOCTL_GET_VOLUME_ID:
-		return put_user(sbi->volume.ser_num, user_attr);
-
 	case FITRIM:
 		return ntfs_ioctl_fitrim(sbi, arg);
 	}
-- 
2.30.2