linux-kernel - [PATCH 04/24] ide-tape: remove pipeline-specific code from idetape_chrdev

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Message-Id: <1204361928-30229-5-git-send-email-petkovbb@gmail.com>
Date:	Sat,  1 Mar 2008 09:58:28 +0100
From:	Borislav Petkov <petkovbb@...glemail.com>
To:	<bzolnier@...il.com>
Cc:	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org,
	Borislav Petkov <petkovbb@...il.com>
Subject: [PATCH 04/24] ide-tape: remove pipeline-specific code from idetape_chrdev_write

Also, remove unused stage-parameter from idetape_copy_stage_from_user()

Signed-off-by: Borislav Petkov <petkovbb@...il.com>
---
 drivers/ide/ide-tape.c |   15 ++++-----------
 1 files changed, 4 insertions(+), 11 deletions(-)

diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index e919d41..4a064c1 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -1700,7 +1700,7 @@ static idetape_stage_t *idetape_kmalloc_stage(idetape_tape_t *tape)
 }
 
 static int idetape_copy_stage_from_user(idetape_tape_t *tape,
-		idetape_stage_t *stage, const char __user *buf, int n)
+					const char __user *buf, int n)
 {
 	struct idetape_bh *bh = tape->bh;
 	int count;
@@ -2696,8 +2696,6 @@ static ssize_t idetape_chrdev_write(struct file *file, const char __user *buf,
 
 	/* Initialize write operation */
 	if (tape->chrdev_dir != IDETAPE_DIR_WRITE) {
-		if (tape->chrdev_dir == IDETAPE_DIR_READ)
-			idetape_discard_read_pipeline(drive, 1);
 		if (tape->merge_stage || tape->merge_stage_size) {
 			printk(KERN_ERR "ide-tape: merge_stage_size "
 				"should be 0 now\n");
@@ -2729,8 +2727,6 @@ static ssize_t idetape_chrdev_write(struct file *file, const char __user *buf,
 	}
 	if (count == 0)
 		return (0);
-	if (tape->restart_speed_control_req)
-		idetape_restart_speed_control(drive);
 	if (tape->merge_stage_size) {
 		if (tape->merge_stage_size >= tape->stage_size) {
 			printk(KERN_ERR "ide-tape: bug: merge buf too big\n");
@@ -2739,8 +2735,7 @@ static ssize_t idetape_chrdev_write(struct file *file, const char __user *buf,
 		actually_written = min((unsigned int)
 				(tape->stage_size - tape->merge_stage_size),
 				(unsigned int)count);
-		if (idetape_copy_stage_from_user(tape, tape->merge_stage, buf,
-						 actually_written))
+		if (idetape_copy_stage_from_user(tape, buf, actually_written))
 				ret = -EFAULT;
 		buf += actually_written;
 		tape->merge_stage_size += actually_written;
@@ -2756,8 +2751,7 @@ static ssize_t idetape_chrdev_write(struct file *file, const char __user *buf,
 	}
 	while (count >= tape->stage_size) {
 		ssize_t retval;
-		if (idetape_copy_stage_from_user(tape, tape->merge_stage, buf,
-						 tape->stage_size))
+		if (idetape_copy_stage_from_user(tape, buf, tape->stage_size))
 			ret = -EFAULT;
 		buf += tape->stage_size;
 		count -= tape->stage_size;
@@ -2768,8 +2762,7 @@ static ssize_t idetape_chrdev_write(struct file *file, const char __user *buf,
 	}
 	if (count) {
 		actually_written += count;
-		if (idetape_copy_stage_from_user(tape, tape->merge_stage, buf,
-						 count))
+		if (idetape_copy_stage_from_user(tape, buf, count))
 			ret = -EFAULT;
 		tape->merge_stage_size += count;
 	}
-- 
1.5.4.1

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