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authorChristoph Hellwig <hch@lst.de>2021-07-24 10:20:15 +0300
committerMartin K. Petersen <martin.petersen@oracle.com>2021-07-29 05:24:24 +0300
commit6fade4505af898c849ebe80f54313aa9c387e6da (patch)
treed89a7ebe1b88ce357b71af6745e53c3b18b4a29e
parent2c2db2c6059a426ac27f467062ff2ba6871b69e6 (diff)
downloadlinux-6fade4505af898c849ebe80f54313aa9c387e6da.tar.xz
scsi: core: Remove scsi_compat_ioctl()
Just handle the compat case in scsi_ioctl() using in_compat_syscall(). Link: https://lore.kernel.org/r/20210724072033.1284840-7-hch@lst.de Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
-rw-r--r--drivers/scsi/ch.c2
-rw-r--r--drivers/scsi/scsi_ioctl.c60
-rw-r--r--drivers/scsi/sd.c2
-rw-r--r--drivers/scsi/sg.c3
-rw-r--r--drivers/scsi/sr.c5
-rw-r--r--drivers/scsi/st.c2
-rw-r--r--include/scsi/scsi_ioctl.h1
7 files changed, 22 insertions, 53 deletions
diff --git a/drivers/scsi/ch.c b/drivers/scsi/ch.c
index cf517381cbcc..e354a95c56af 100644
--- a/drivers/scsi/ch.c
+++ b/drivers/scsi/ch.c
@@ -877,8 +877,6 @@ static long ch_ioctl(struct file *file,
}
default:
- if (in_compat_syscall())
- return scsi_compat_ioctl(ch->device, cmd, argp);
return scsi_ioctl(ch->device, cmd, argp);
}
diff --git a/drivers/scsi/scsi_ioctl.c b/drivers/scsi/scsi_ioctl.c
index 0d13610cd6bf..7b2e3cc85e66 100644
--- a/drivers/scsi/scsi_ioctl.c
+++ b/drivers/scsi/scsi_ioctl.c
@@ -189,8 +189,17 @@ static int scsi_ioctl_get_pci(struct scsi_device *sdev, void __user *arg)
? -EFAULT: 0;
}
-
-static int scsi_ioctl_common(struct scsi_device *sdev, int cmd, void __user *arg)
+/**
+ * scsi_ioctl - Dispatch ioctl to scsi device
+ * @sdev: scsi device receiving ioctl
+ * @cmd: which ioctl is it
+ * @arg: data associated with ioctl
+ *
+ * Description: The scsi_ioctl() function differs from most ioctls in that it
+ * does not take a major/minor number as the dev field. Rather, it takes
+ * a pointer to a &struct scsi_device.
+ */
+int scsi_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
{
char scsi_cmd[MAX_COMMAND_SIZE];
struct scsi_sense_hdr sense_hdr;
@@ -258,48 +267,19 @@ static int scsi_ioctl_common(struct scsi_device *sdev, int cmd, void __user *arg
case SG_SCSI_RESET:
return scsi_ioctl_reset(sdev, arg);
}
- return -ENOIOCTLCMD;
-}
-
-/**
- * scsi_ioctl - Dispatch ioctl to scsi device
- * @sdev: scsi device receiving ioctl
- * @cmd: which ioctl is it
- * @arg: data associated with ioctl
- *
- * Description: The scsi_ioctl() function differs from most ioctls in that it
- * does not take a major/minor number as the dev field. Rather, it takes
- * a pointer to a &struct scsi_device.
- */
-int scsi_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
-{
- int ret = scsi_ioctl_common(sdev, cmd, arg);
-
- if (ret != -ENOIOCTLCMD)
- return ret;
-
- if (sdev->host->hostt->ioctl)
- return sdev->host->hostt->ioctl(sdev, cmd, arg);
-
- return -EINVAL;
-}
-EXPORT_SYMBOL(scsi_ioctl);
#ifdef CONFIG_COMPAT
-int scsi_compat_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
-{
- int ret = scsi_ioctl_common(sdev, cmd, arg);
-
- if (ret != -ENOIOCTLCMD)
- return ret;
-
- if (sdev->host->hostt->compat_ioctl)
+ if (in_compat_syscall()) {
+ if (!sdev->host->hostt->compat_ioctl)
+ return -EINVAL;
return sdev->host->hostt->compat_ioctl(sdev, cmd, arg);
-
- return ret;
-}
-EXPORT_SYMBOL(scsi_compat_ioctl);
+ }
#endif
+ if (!sdev->host->hostt->ioctl)
+ return -EINVAL;
+ return sdev->host->hostt->ioctl(sdev, cmd, arg);
+}
+EXPORT_SYMBOL(scsi_ioctl);
/*
* We can process a reset even when a device isn't fully operable.
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 12faebc163ab..0b87ca01efff 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -1588,8 +1588,6 @@ static int sd_ioctl(struct block_device *bdev, fmode_t mode,
return error;
}
- if (in_compat_syscall())
- return scsi_compat_ioctl(sdp, cmd, p);
return scsi_ioctl(sdp, cmd, p);
}
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 0a6655bad5a4..c3562c2d0dca 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -1165,9 +1165,6 @@ sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg)
ret = sg_ioctl_common(filp, sdp, sfp, cmd_in, p);
if (ret != -ENOIOCTLCMD)
return ret;
-
- if (in_compat_syscall())
- return scsi_compat_ioctl(sdp->device, cmd_in, p);
return scsi_ioctl(sdp->device, cmd_in, p);
}
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index b34f06924659..c5e163a659d2 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -584,10 +584,7 @@ static int sr_block_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd,
goto put;
}
- if (in_compat_syscall())
- ret = scsi_compat_ioctl(sdev, cmd, argp);
- else
- ret = scsi_ioctl(sdev, cmd, argp);
+ ret = scsi_ioctl(sdev, cmd, argp);
put:
scsi_autopm_put_device(sdev);
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index c6f14540ae03..c3fee73e018e 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -3886,7 +3886,7 @@ static long st_compat_ioctl(struct file *file, unsigned int cmd_in, unsigned lon
if (ret != -ENOTTY)
return ret;
- return scsi_compat_ioctl(STp->device, cmd_in, p);
+ return scsi_ioctl(STp->device, cmd_in, p);
}
#endif
diff --git a/include/scsi/scsi_ioctl.h b/include/scsi/scsi_ioctl.h
index b465799f4d2d..cdb3ba3451e7 100644
--- a/include/scsi/scsi_ioctl.h
+++ b/include/scsi/scsi_ioctl.h
@@ -44,7 +44,6 @@ typedef struct scsi_fctargaddress {
int scsi_ioctl_block_when_processing_errors(struct scsi_device *sdev,
int cmd, bool ndelay);
extern int scsi_ioctl(struct scsi_device *, int, void __user *);
-extern int scsi_compat_ioctl(struct scsi_device *sdev, int cmd, void __user *arg);
#endif /* __KERNEL__ */
#endif /* _SCSI_IOCTL_H */