From: Al Viro <viro@ftp.linux.org.uk>
Date: Wed, 11 Oct 2006 16:45:47 +0000 (+0100)
Subject: [PATCH] i2Output always takes kernel data now
X-Git-Tag: firefly_0821_release~32080
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=f061c5847bcc72eebf6a783f458d42092eac1b6a;p=firefly-linux-kernel-4.4.55.git

[PATCH] i2Output always takes kernel data now

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/drivers/char/ip2/i2lib.c b/drivers/char/ip2/i2lib.c
index fc944d375be7..54d93f0345e8 100644
--- a/drivers/char/ip2/i2lib.c
+++ b/drivers/char/ip2/i2lib.c
@@ -1007,7 +1007,7 @@ i2InputAvailable(i2ChanStrPtr pCh)
 // applications that one cannot break out of.
 //******************************************************************************
 static int
-i2Output(i2ChanStrPtr pCh, const char *pSource, int count, int user )
+i2Output(i2ChanStrPtr pCh, const char *pSource, int count)
 {
 	i2eBordStrPtr pB;
 	unsigned char *pInsert;
@@ -1020,7 +1020,7 @@ i2Output(i2ChanStrPtr pCh, const char *pSource, int count, int user )
 
 	int bailout = 10;
 
-	ip2trace (CHANN, ITRC_OUTPUT, ITRC_ENTER, 2, count, user );
+	ip2trace (CHANN, ITRC_OUTPUT, ITRC_ENTER, 2, count, 0 );
 
 	// Ensure channel structure seems real
 	if ( !i2Validate ( pCh ) ) 
@@ -1087,12 +1087,7 @@ i2Output(i2ChanStrPtr pCh, const char *pSource, int count, int user )
 			DATA_COUNT_OF(pInsert)  = amountToMove;
 
 			// Move the data
-			if ( user ) {
-				rc = copy_from_user((char*)(DATA_OF(pInsert)), pSource,
-						amountToMove );
-			} else {
-				memcpy( (char*)(DATA_OF(pInsert)), pSource, amountToMove );
-			}
+			memcpy( (char*)(DATA_OF(pInsert)), pSource, amountToMove );
 			// Adjust pointers and indices
 			pSource					+= amountToMove;
 			pCh->Obuf_char_count	+= amountToMove;
diff --git a/drivers/char/ip2/i2lib.h b/drivers/char/ip2/i2lib.h
index 952e113ccd8a..e559e9bac06d 100644
--- a/drivers/char/ip2/i2lib.h
+++ b/drivers/char/ip2/i2lib.h
@@ -332,7 +332,7 @@ static int  i2QueueCommands(int, i2ChanStrPtr, int, int, cmdSyntaxPtr,...);
 static int  i2GetStatus(i2ChanStrPtr, int);
 static int  i2Input(i2ChanStrPtr);
 static int  i2InputFlush(i2ChanStrPtr);
-static int  i2Output(i2ChanStrPtr, const char *, int, int);
+static int  i2Output(i2ChanStrPtr, const char *, int);
 static int  i2OutputFree(i2ChanStrPtr);
 static int  i2ServiceBoard(i2eBordStrPtr);
 static void i2DrainOutput(i2ChanStrPtr, int);
diff --git a/drivers/char/ip2/ip2main.c b/drivers/char/ip2/ip2main.c
index 858ba5432c99..a3f32d46d2f8 100644
--- a/drivers/char/ip2/ip2main.c
+++ b/drivers/char/ip2/ip2main.c
@@ -1704,7 +1704,7 @@ ip2_write( PTTY tty, const unsigned char *pData, int count)
 
 	/* This is the actual move bit. Make sure it does what we need!!!!! */
 	WRITE_LOCK_IRQSAVE(&pCh->Pbuf_spinlock,flags);
-	bytesSent = i2Output( pCh, pData, count, 0 );
+	bytesSent = i2Output( pCh, pData, count);
 	WRITE_UNLOCK_IRQRESTORE(&pCh->Pbuf_spinlock,flags);
 
 	ip2trace (CHANN, ITRC_WRITE, ITRC_RETURN, 1, bytesSent );
@@ -1764,7 +1764,7 @@ ip2_flush_chars( PTTY tty )
 		//
 		// We may need to restart i2Output if it does not fullfill this request
 		//
-		strip = i2Output( pCh, pCh->Pbuf, pCh->Pbuf_stuff, 0 );
+		strip = i2Output( pCh, pCh->Pbuf, pCh->Pbuf_stuff);
 		if ( strip != pCh->Pbuf_stuff ) {
 			memmove( pCh->Pbuf, &pCh->Pbuf[strip], pCh->Pbuf_stuff - strip );
 		}