Merge intel.com:/home/lenb/bk/linux-2.6.4

into intel.com:/home/lenb/src/linux-acpi-test-2.6.4

Documentation/crypto/api-intro.txt

@@ -186,6 +186,7 @@ Original developers of the crypto algorithms:
   Dag Arne Osvik (Serpent)
   Brian Gladman (AES)
   Kartikey Mahendra Bhatt (CAST6)
+  Jon Oberheide (ARC4)
 
 SHA1 algorithm contributors:
   Jean-Francois Dive

Makefile

 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 4
-EXTRAVERSION =-rc1
+EXTRAVERSION =-rc2
 NAME=Feisty Dunnart
 
 # *DOCUMENTATION*

arch/arm/Makefile

@@ -23,6 +23,11 @@ CFLAGS		+= -mbig-endian
 AS		+= -EB
 LD		+= -EB
 AFLAGS		+= -mbig-endian
+else
+CFLAGS		+= -mlittle-endian
+AS		+= -EL
+LD		+= -EL
+AFLAGS		+= -mlittle-endian
 endif
 
 comma = ,

arch/arm/kernel/armksyms.c

@@ -187,6 +187,7 @@ EXPORT_SYMBOL(__arch_copy_from_user);
 EXPORT_SYMBOL(__arch_copy_to_user);
 EXPORT_SYMBOL(__arch_clear_user);
 EXPORT_SYMBOL(__arch_strnlen_user);
+EXPORT_SYMBOL(__arch_strncpy_from_user);
 
 	/* consistent area handling */
 EXPORT_SYMBOL(consistent_alloc);

arch/arm/mm/Kconfig

@@ -347,7 +347,7 @@ config CPU_BIG_ENDIAN
 	help
 	  Say Y if you plan on running a kernel in big-endian mode.
 	  Note that your board must be properly built and your board
-	  port must properly enable and big-endian related features
+	  port must properly enable any big-endian related features
 	  of your chipset/board/processor.
 
 config CPU_ICACHE_DISABLE

arch/sparc64/defconfig

@@ -100,14 +100,13 @@ CONFIG_PARPORT_1284=y
 CONFIG_PRINTER=m
 CONFIG_ENVCTRL=m
 CONFIG_DISPLAY7SEG=m
-CONFIG_WATCHDOG_CP1XXX=m
-CONFIG_WATCHDOG_RIO=m
 # CONFIG_CMDLINE_BOOL is not set
 
 #
 # Generic Driver Options
 #
 CONFIG_FW_LOADER=m
+# CONFIG_DEBUG_DRIVER is not set
 
 #
 # Graphics support
@@ -211,7 +210,6 @@ CONFIG_BLK_DEV_CRYPTOLOOP=m
 CONFIG_BLK_DEV_NBD=m
 # CONFIG_BLK_DEV_RAM is not set
 # CONFIG_BLK_DEV_INITRD is not set
-CONFIG_DCSSBLK=m
 
 #
 # ATA/ATAPI/MFM/RLL support
@@ -407,6 +405,8 @@ CONFIG_IEEE1394=m
 #
 # CONFIG_IEEE1394_VERBOSEDEBUG is not set
 CONFIG_IEEE1394_OUI_DB=y
+CONFIG_IEEE1394_EXTRA_CONFIG_ROMS=y
+CONFIG_IEEE1394_CONFIG_ROM_IP1394=y
 
 #
 # Device Drivers
@@ -1638,6 +1638,8 @@ CONFIG_WATCHDOG=y
 # Watchdog Device Drivers
 #
 CONFIG_SOFT_WATCHDOG=m
+CONFIG_WATCHDOG_CP1XXX=m
+CONFIG_WATCHDOG_RIO=m
 
 #
 # PCI-based Watchdog Cards
@@ -1646,6 +1648,11 @@ CONFIG_PCIPCWATCHDOG=m
 CONFIG_WDTPCI=m
 CONFIG_WDT_501_PCI=y
 
+#
+# USB-based Watchdog Cards
+#
+CONFIG_USBPCWATCHDOG=m
+
 #
 # Profiling support
 #

crypto/Kconfig

@@ -140,6 +140,16 @@ config CRYPTO_CAST6
 	  The CAST6 encryption algorithm (synonymous with CAST-256) is
 	  described in RFC2612.
 
+config CRYPTO_ARC4
+	tristate "ARC4 cipher algorithm"
+	depends on CRYPTO
+	help
+	  ARC4 cipher algorithm.
+
+	  This is a stream cipher using keys ranging from 8 bits to 2048
+	  bits in length.  ARC4 is commonly used in protocols such as WEP 
+	  and SSL.
+
 config CRYPTO_DEFLATE
 	tristate "Deflate compression algorithm"
 	depends on CRYPTO

crypto/Makefile

@@ -21,6 +21,7 @@ obj-$(CONFIG_CRYPTO_SERPENT) += serpent.o
 obj-$(CONFIG_CRYPTO_AES) += aes.o
 obj-$(CONFIG_CRYPTO_CAST5) += cast5.o
 obj-$(CONFIG_CRYPTO_CAST6) += cast6.o
+obj-$(CONFIG_CRYPTO_ARC4) += arc4.o
 obj-$(CONFIG_CRYPTO_DEFLATE) += deflate.o
 
 obj-$(CONFIG_CRYPTO_TEST) += tcrypt.o

crypto/arc4.c

+/* 
+ * Cryptographic API
+ *
+ * ARC4 Cipher Algorithm
+ *
+ * Jon Oberheide <jon@focalhost.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/crypto.h>
+
+#define ARC4_MIN_KEY_SIZE	1
+#define ARC4_MAX_KEY_SIZE	256
+#define ARC4_BLOCK_SIZE		1
+
+struct arc4_ctx {
+	u8 S[256];
+	u8 x, y;
+};
+
+static int arc4_set_key(void *ctx_arg, const u8 *in_key, unsigned int key_len, u32 *flags)
+{
+	struct arc4_ctx *ctx = ctx_arg;
+	int i, j = 0, k = 0;
+
+	ctx->x = 1;
+	ctx->y = 0;
+
+	for(i = 0; i < 256; i++)
+		ctx->S[i] = i;
+
+	for(i = 0; i < 256; i++)
+	{
+		u8 a = ctx->S[i];
+		j = (j + in_key[k] + a) & 0xff;
+		ctx->S[i] = ctx->S[j];
+		ctx->S[j] = a;
+		if(++k >= key_len)
+			k = 0;
+	}
+
+	/* TODO: dump the first 768 bytes generated as recommended
+	   by Ilya Mironov (http://eprint.iacr.org/2002/067/) to 
+	   increase the statistical strength of the state table */
+
+	return 0;
+}
+
+static void arc4_crypt(void *ctx_arg, u8 *out, const u8 *in)
+{
+	struct arc4_ctx *ctx = ctx_arg;
+
+	u8 *const S = ctx->S;
+	u8 x = ctx->x;
+	u8 y = ctx->y;
+
+	u8 a = S[x];
+	y = (y + a) & 0xff;
+	u8 b = S[y];
+	S[x] = b;
+	S[y] = a;
+	x = (x + 1) & 0xff;
+	*out++ = *in ^ S[(a + b) & 0xff];
+
+	ctx->x = x;
+	ctx->y = y;
+}
+
+static struct crypto_alg arc4_alg = {
+	.cra_name		=	"arc4",
+	.cra_flags		=	CRYPTO_ALG_TYPE_CIPHER,
+	.cra_blocksize		=	ARC4_BLOCK_SIZE,
+	.cra_ctxsize		=	sizeof(struct arc4_ctx),
+	.cra_module		=	THIS_MODULE,
+	.cra_list		=	LIST_HEAD_INIT(arc4_alg.cra_list),
+	.cra_u			=	{ .cipher = {
+	.cia_min_keysize	=	ARC4_MIN_KEY_SIZE,
+	.cia_max_keysize	=	ARC4_MAX_KEY_SIZE,
+	.cia_setkey	   	= 	arc4_set_key,
+	.cia_encrypt	 	=	arc4_crypt,
+	.cia_decrypt	  	=	arc4_crypt } }
+};
+
+static int __init arc4_init(void)
+{
+	return crypto_register_alg(&arc4_alg);
+}
+
+
+static void __exit arc4_exit(void)
+{
+	crypto_unregister_alg(&arc4_alg);
+}
+
+module_init(arc4_init);
+module_exit(arc4_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("ARC4 Cipher Algorithm");
+MODULE_AUTHOR("Jon Oberheide <jon@focalhost.com>");

crypto/tcrypt.c

@@ -61,7 +61,7 @@ static char *tvmem;
 static char *check[] = {
 	"des", "md5", "des3_ede", "rot13", "sha1", "sha256", "blowfish",
 	"twofish", "serpent", "sha384", "sha512", "md4", "aes", "cast6", 
-	"deflate", NULL
+	"arc4", "deflate", NULL
 };
 
 static void
@@ -556,6 +556,10 @@ do_test(void)
 		test_cipher ("cast6", MODE_ECB, ENCRYPT, cast6_enc_tv_template, CAST6_ENC_TEST_VECTORS);
 		test_cipher ("cast6", MODE_ECB, DECRYPT, cast6_dec_tv_template, CAST6_DEC_TEST_VECTORS);
 
+		//ARC4
+		test_cipher ("arc4", MODE_ECB, ENCRYPT, arc4_enc_tv_template, ARC4_ENC_TEST_VECTORS);
+		test_cipher ("arc4x", MODE_ECB, DECRYPT, arc4_dec_tv_template, ARC4_DEC_TEST_VECTORS);
+
 		test_hash("sha384", sha384_tv_template, SHA384_TEST_VECTORS);
 		test_hash("sha512", sha512_tv_template, SHA512_TEST_VECTORS);
 		test_deflate();		
@@ -638,6 +642,11 @@ do_test(void)
 		test_cipher ("cast6", MODE_ECB, DECRYPT, cast6_dec_tv_template, CAST6_DEC_TEST_VECTORS);
 		break;
 
+	case 16:
+		test_cipher ("arc4", MODE_ECB, ENCRYPT, arc4_enc_tv_template, ARC4_ENC_TEST_VECTORS);
+		test_cipher ("arc4", MODE_ECB, DECRYPT, arc4_dec_tv_template, ARC4_DEC_TEST_VECTORS);
+		break;
+
 #ifdef CONFIG_CRYPTO_HMAC
 	case 100:
 		test_hmac("md5", hmac_md5_tv_template, HMAC_MD5_TEST_VECTORS);

crypto/tcrypt.h

@@ -1488,6 +1488,147 @@ struct cipher_testvec cast5_dec_tv_template[] =
 	},
 };
 
+/* 
+ * ARC4 test vectors from OpenSSL 
+ */
+#define ARC4_ENC_TEST_VECTORS	7
+#define ARC4_DEC_TEST_VECTORS	7
+
+struct cipher_testvec arc4_enc_tv_template[] =
+{
+	{
+		.key	= { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef },
+		.klen	= 8,
+		.input	= { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef },
+		.ilen	= 8,
+		.result	= { 0x75, 0xb7, 0x87, 0x80, 0x99, 0xe0, 0xc5, 0x96 },
+		.rlen	= 8,
+	}, {
+		.key	= { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef },
+		.klen	= 8,
+		.input	= { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+		.ilen	= 8,
+		.result	= { 0x74, 0x94, 0xc2, 0xe7, 0x10, 0x4b, 0x08, 0x79 },
+		.rlen	= 8,
+	}, {
+		.key	= { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+		.klen	= 8,
+		.input	= { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+		.ilen	= 8,
+		.result	= { 0xde, 0x18, 0x89, 0x41, 0xa3, 0x37, 0x5d, 0x3a },
+		.rlen	= 8,
+	}, {
+		.key	= { 0xef, 0x01, 0x23, 0x45},
+		.klen	= 4,
+		.input	= { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			    0x00, 0x00, 0x00, 0x00 },
+		.ilen	= 20,
+		.result	= { 0xd6, 0xa1, 0x41, 0xa7, 0xec, 0x3c, 0x38, 0xdf,
+			    0xbd, 0x61, 0x5a, 0x11, 0x62, 0xe1, 0xc7, 0xba,
+			    0x36, 0xb6, 0x78, 0x58 },
+		.rlen	= 20,
+	}, {
+		.key	= { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef },
+		.klen	= 8,
+		.input	= { 0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC, 0xDE, 0xF0,
+			    0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC, 0xDE, 0xF0,
+			    0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC, 0xDE, 0xF0,
+			    0x12, 0x34, 0x56, 0x78 },
+		.ilen	= 28,
+		.result	= { 0x66, 0xa0, 0x94, 0x9f, 0x8a, 0xf7, 0xd6, 0x89,
+			    0x1f, 0x7f, 0x83, 0x2b, 0xa8, 0x33, 0xc0, 0x0c,
+			    0x89, 0x2e, 0xbe, 0x30, 0x14, 0x3c, 0xe2, 0x87,
+			    0x40, 0x01, 0x1e, 0xcf },
+		.rlen	= 28,
+	}, {
+		.key	= { 0xef, 0x01, 0x23, 0x45 },
+		.klen	= 4,
+		.input	= { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			    0x00, 0x00 },
+		.ilen	= 10,
+		.result	= { 0xd6, 0xa1, 0x41, 0xa7, 0xec, 0x3c, 0x38, 0xdf,
+			    0xbd, 0x61 },
+		.rlen	= 10,
+	}, {
+		.key	= { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF,
+		            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+		.klen	= 16,
+		.input	= { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF },
+		.ilen	= 8,
+		.result	= { 0x69, 0x72, 0x36, 0x59, 0x1B, 0x52, 0x42, 0xB1 },
+		.rlen	= 8,
+	},
+};
+
+struct cipher_testvec arc4_dec_tv_template[] =
+{
+	{
+		.key	= { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef },
+		.klen	= 8,
+		.input	= { 0x75, 0xb7, 0x87, 0x80, 0x99, 0xe0, 0xc5, 0x96 },
+		.ilen	= 8,
+		.result	= { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef },
+		.rlen	= 8,
+	}, {
+		.key	= { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef },
+		.klen	= 8,
+		.input	= { 0x74, 0x94, 0xc2, 0xe7, 0x10, 0x4b, 0x08, 0x79 },
+		.ilen	= 8,
+		.result	= { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+		.rlen	= 8,
+	}, {
+		.key	= { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+		.klen	= 8,
+		.input	= { 0xde, 0x18, 0x89, 0x41, 0xa3, 0x37, 0x5d, 0x3a },
+		.ilen	= 8,
+		.result	= { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+		.rlen	= 8,
+	}, {
+		.key	= { 0xef, 0x01, 0x23, 0x45},
+		.klen	= 4,
+		.input	= { 0xd6, 0xa1, 0x41, 0xa7, 0xec, 0x3c, 0x38, 0xdf,
+			    0xbd, 0x61, 0x5a, 0x11, 0x62, 0xe1, 0xc7, 0xba,
+			    0x36, 0xb6, 0x78, 0x58 },
+		.ilen	= 20,
+		.result	= { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			    0x00, 0x00, 0x00, 0x00 },
+		.rlen	= 20,
+	}, {
+		.key	= { 0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef },
+		.klen	= 8,
+		.input	= { 0x66, 0xa0, 0x94, 0x9f, 0x8a, 0xf7, 0xd6, 0x89,
+			    0x1f, 0x7f, 0x83, 0x2b, 0xa8, 0x33, 0xc0, 0x0c,
+			    0x89, 0x2e, 0xbe, 0x30, 0x14, 0x3c, 0xe2, 0x87,
+			    0x40, 0x01, 0x1e, 0xcf },
+		.ilen	= 28,
+		.result	= { 0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC, 0xDE, 0xF0,
+			    0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC, 0xDE, 0xF0,
+			    0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC, 0xDE, 0xF0,
+			    0x12, 0x34, 0x56, 0x78 },
+		.rlen	= 28,
+	}, {
+		.key	= { 0xef, 0x01, 0x23, 0x45 },
+		.klen	= 4,
+		.input	= { 0xd6, 0xa1, 0x41, 0xa7, 0xec, 0x3c, 0x38, 0xdf,
+			    0xbd, 0x61 },
+		.ilen	= 10,
+		.result	= { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+			    0x00, 0x00 },
+		.rlen	= 10,
+	}, {
+		.key	= { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF,
+		            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
+		.klen	= 16,
+		.input	= { 0x69, 0x72, 0x36, 0x59, 0x1B, 0x52, 0x42, 0xB1 },
+		.ilen	= 8,
+		.result	= { 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF },
+		.rlen	= 8,
+	},
+};
+
+
 /*
  * Compression stuff.
  */

drivers/net/irda/stir4200.c

@@ -49,12 +49,14 @@
 #include <linux/suspend.h>
 #include <linux/slab.h>
 #include <linux/usb.h>
+#include <linux/crc32.h>
 #include <net/irda/irda.h>
 #include <net/irda/irlap.h>
 #include <net/irda/irda_device.h>
 #include <net/irda/wrapper.h>
 #include <net/irda/crc.h>
-#include <linux/crc32.h>
+#include <asm/byteorder.h>
+#include <asm/unaligned.h>
 
 MODULE_AUTHOR("Stephen Hemminger <shemminger@osdl.org>");
 MODULE_DESCRIPTION("IrDA-USB Dongle Driver for SigmaTel STIr4200");
@@ -72,15 +74,11 @@ static int tx_power = 0;	/* 0 = highest ... 3 = lowest */
 module_param(tx_power, int, 0);
 MODULE_PARM_DESC(tx_power, "Set Transmitter power (0-3, 0 is highest power)");
 
-static int rx_interval = 5;  /* milliseconds */
-module_param(rx_interval, int, 0);
-MODULE_PARM_DESC(rx_interval, "Receive polling interval (ms)");
-
 #define STIR_IRDA_HEADER  	4
 #define CTRL_TIMEOUT		100	   /* milliseconds */
 #define TRANSMIT_TIMEOUT	200	   /* milliseconds */
 #define STIR_FIFO_SIZE		4096
-#define NUM_RX_URBS		2
+#define FIFO_REGS_SIZE		3
 
 enum FirChars {
 	FIR_CE   = 0x7d,
@@ -167,36 +165,26 @@ enum StirTestMask {
 	TEST_TSTOSC = 0x0F,
 };
 
-enum StirState {
-	STIR_STATE_RECEIVING=0,
-	STIR_STATE_TXREADY,
-};
-
 struct stir_cb {
         struct usb_device *usbdev;      /* init: probe_irda */
         struct net_device *netdev;      /* network layer */
         struct irlap_cb   *irlap;       /* The link layer we are binded to */
         struct net_device_stats stats;	/* network statistics */
         struct qos_info   qos;
-	unsigned long     state;
 	unsigned 	  speed;	/* Current speed */
 
 	wait_queue_head_t thr_wait;	/* transmit thread wakeup */
 	struct completion thr_exited;
 	pid_t		  thr_pid;
 
-	unsigned int	  tx_bulkpipe;
-	void		 *tx_data;	/* wrapped data out */
-	unsigned	  tx_len;
-	unsigned	  tx_newspeed;
-	unsigned	  tx_mtt;
+	struct sk_buff	  *tx_pending;
+	void		  *io_buf;	/* transmit/receive buffer */
+	__u8		  *fifo_status;
 
-	unsigned int	  rx_intpipe;
 	iobuff_t  	  rx_buff;	/* receive unwrap state machine */
-	struct timespec	  rx_time;
-
-	struct urb	 *rx_urbs[NUM_RX_URBS];
-	void		 *rx_data[NUM_RX_URBS];
+	struct timeval	  rx_time;
+	int		  receiving;
+	struct urb	 *rx_urb;
 };
 
 
@@ -209,9 +197,6 @@ static struct usb_device_id dongles[] = {
 
 MODULE_DEVICE_TABLE(usb, dongles);
 
-static int fifo_txwait(struct stir_cb *stir, unsigned space);
-static void stir_usb_receive(struct urb *urb, struct pt_regs *regs);
-
 /* Send control message to set dongle register */
 static int write_reg(struct stir_cb *stir, __u16 reg, __u8 value)
 {
@@ -239,6 +224,11 @@ static inline int read_reg(struct stir_cb *stir, __u16 reg,
 			       MSECS_TO_JIFFIES(CTRL_TIMEOUT));
 }
 
+static inline int isfir(u32 speed)
+{
+	return (speed == 4000000);
+}
+
 /*
  * Prepare a FIR IrDA frame for transmission to the USB dongle.  The
  * FIR transmit frame is documented in the datasheet.  It consists of
@@ -333,8 +323,8 @@ static void fir_eof(struct stir_cb *stir)
 {
 	iobuff_t *rx_buff = &stir->rx_buff;
 	int len = rx_buff->len - 4;
+	struct sk_buff *skb, *nskb;
 	__u32 fcs;
-	struct sk_buff *nskb;
 
 	if (unlikely(len <= 0)) {
 		pr_debug("%s: short frame len %d\n",
@@ -345,41 +335,46 @@ static void fir_eof(struct stir_cb *stir)
 		return;
 	}
 
-	fcs = rx_buff->data[len] |
-		rx_buff->data[len+1] << 8 |
-		rx_buff->data[len+2] << 16 |
-		rx_buff->data[len+3] << 24;
-
-	if (unlikely(fcs != ~(crc32_le(~0, rx_buff->data, len)))) {
-		pr_debug("%s: crc error\n", stir->netdev->name);
-		irda_device_set_media_busy(stir->netdev, TRUE);
+	fcs = ~(crc32_le(~0, rx_buff->data, len));
+	if (fcs != le32_to_cpu(get_unaligned((u32 *)(rx_buff->data+len)))) {
+		pr_debug("crc error calc 0x%x len %d\n", fcs, len);
 		stir->stats.rx_errors++;
 		stir->stats.rx_crc_errors++;
 		return;
 	}
 
-	/* If can't get new buffer, just drop and reuse */
-	nskb = dev_alloc_skb(IRDA_SKB_MAX_MTU);
-	if (unlikely(!nskb))
+	/* if frame is short then just copy it */
+	if (len < IRDA_RX_COPY_THRESHOLD) {
+		nskb = dev_alloc_skb(len + 1);
+		if (unlikely(!nskb)) {
 			++stir->stats.rx_dropped;
-	else {
-		struct sk_buff *oskb = rx_buff->skb;
+			return;
+		}
 		skb_reserve(nskb, 1);
+		skb = nskb;
+		memcpy(nskb->data, rx_buff->data, len);
+	} else {
+		nskb = dev_alloc_skb(rx_buff->truesize);
+		if (unlikely(!nskb)) {
+			++stir->stats.rx_dropped;
+			return;
+		}
+		skb_reserve(nskb, 1);
+		skb = rx_buff->skb;
+		rx_buff->skb = nskb;
+		rx_buff->head = nskb->data;
+	}
 
-		/* Set correct length in socket buffer */
-		skb_put(oskb, len);
+	skb_put(skb, len);
 
-		oskb->mac.raw  = oskb->data;
-		oskb->protocol = htons(ETH_P_IRDA);
-		oskb->dev = stir->netdev;
+	skb->mac.raw  = skb->data;
+	skb->protocol = htons(ETH_P_IRDA);
+	skb->dev = stir->netdev;
 
-		netif_rx(oskb);
+	netif_rx(skb);
 
 	stir->stats.rx_packets++;
 	stir->stats.rx_bytes += len;
-		rx_buff->skb = nskb;
-		rx_buff->head = nskb->data;
-	}
 
 	rx_buff->data = rx_buff->head;
 	rx_buff->len = 0;
@@ -402,7 +397,6 @@ static void stir_fir_chars(struct stir_cb *stir,
 				continue;
 			/* Now receiving frame */
 			rx_buff->state = BEGIN_FRAME;
-			rx_buff->in_frame = TRUE;
 
 			/* Time to initialize receive buffer */
 			rx_buff->data = rx_buff->head;
@@ -424,6 +418,7 @@ static void stir_fir_chars(struct stir_cb *stir,
 			if (byte == FIR_EOF)
 				continue;
 			rx_buff->state = INSIDE_FRAME;
+			rx_buff->in_frame = TRUE;
 
 			/* fall through */
 		case INSIDE_FRAME:
@@ -461,7 +456,6 @@ static void stir_fir_chars(struct stir_cb *stir,
 
 	error_recovery:
 		++stir->stats.rx_errors;
-		irda_device_set_media_busy(stir->netdev, TRUE);
 		rx_buff->state = OUTSIDE_FRAME;
 		rx_buff->in_frame = FALSE;
 	}
@@ -478,11 +472,6 @@ static void stir_sir_chars(struct stir_cb *stir,
 				  &stir->rx_buff, bytes[i]);
 }
 
-static inline int isfir(u32 speed)
-{
-	return (speed == 4000000);
-}
-
 static inline void unwrap_chars(struct stir_cb *stir,
 				const __u8 *bytes, int length)
 {
@@ -519,25 +508,31 @@ static int change_speed(struct stir_cb *stir, unsigned speed)
 	int i, err;
 	__u8 mode;
 
-	pr_debug("%s: change speed %d\n", stir->netdev->name, speed);
 	for (i = 0; i < ARRAY_SIZE(stir_modes); ++i) {
 		if (speed == stir_modes[i].speed)
 			goto found;
 	}
 
-	ERROR("%s: invalid speed %d\n", stir->netdev->name, speed);
+	warn("%s: invalid speed %d", stir->netdev->name, speed);
 	return -EINVAL;
 
  found:
-	pr_debug("%s: speed change from %d to %d\n",
-		 stir->netdev->name, stir->speed, speed);
+	pr_debug("speed change from %d to %d\n", stir->speed, speed);
+
+	/* sometimes needed to get chip out of stuck state */
+	err = usb_reset_device(stir->usbdev);
+	if (err)
+		goto out;
+
+	/* Reset modulator */
+	err = write_reg(stir, REG_CTRL1, CTRL1_SRESET);
+	if (err)
+		goto out;
 
-	/* Make sure any previous Tx is really finished. This happens
-	 * when we answer an incomming request ; the ua:rsp and the
-	 * speed change are bundled together, so we need to wait until
-	 * the packet we just submitted has been sent. Jean II */
-	if (fifo_txwait(stir, 0))
-		return -EIO;
+	/* Undocumented magic to tweak the DPLL */
+	err = write_reg(stir, REG_DPLL, 0x15);
+	if (err)
+		goto out;
 
 	/* Set clock */
 	err = write_reg(stir, REG_PDCLK, stir_modes[i].pdclk);
@@ -564,33 +559,13 @@ static int change_speed(struct stir_cb *stir, unsigned speed)
 		goto out;
 
 	err = write_reg(stir, REG_CTRL1, (tx_power & 3) << 1);
-
- out:
-	stir->speed = speed;
-	return err;
-}
-
-static int stir_reset(struct stir_cb *stir)
-{
-	int err;
-
-	/* reset state */
-	stir->rx_buff.in_frame = FALSE;
-	stir->rx_buff.state = OUTSIDE_FRAME;
-	stir->speed = -1;
-
-	/* Undocumented magic to tweak the DPLL */
-	err = write_reg(stir, REG_DPLL, 0x15);
 	if (err)
 		goto out;
 
 	/* Reset sensitivity */
 	err = write_reg(stir, REG_CTRL2, (rx_sensitivity & 7) << 5);
-	if (err)
-		goto out;
-
-	err = change_speed(stir, 9600);
  out:
+	stir->speed = speed;
 	return err;
 }
 
@@ -606,48 +581,62 @@ static int stir_hard_xmit(struct sk_buff *skb, struct net_device *netdev)
 	/* the IRDA wrapping routines don't deal with non linear skb */
 	SKB_LINEAR_ASSERT(skb);
 
-	if (unlikely(skb->len) == 0) 		/* speed change only */
-		stir->tx_len = 0;
-	else if (isfir(stir->speed))
-		stir->tx_len = wrap_fir_skb(skb, stir->tx_data);
-	else
-		stir->tx_len = wrap_sir_skb(skb, stir->tx_data);
-
-	stir->stats.tx_packets++;
-	stir->stats.tx_bytes += skb->len;
-
-	stir->tx_mtt = irda_get_mtt(skb);
-	stir->tx_newspeed = irda_get_next_speed(skb);
-
-	if (!test_and_set_bit(STIR_STATE_TXREADY, &stir->state))
+	skb = xchg(&stir->tx_pending, skb);
 	wake_up(&stir->thr_wait);
 	
+	/* this should never happen unless stop/wakeup problem */
+	if (unlikely(skb)) {
+		WARN_ON(1);
 		dev_kfree_skb(skb);
+	}
+
 	return 0;
 }
 
 /*
  * Wait for the transmit FIFO to have space for next data
+ *
+ * If space < 0 then wait till FIFO completely drains.
+ * FYI: can take up to 13 seconds at 2400baud.
  */
-static int fifo_txwait(struct stir_cb *stir, unsigned space)
+static int fifo_txwait(struct stir_cb *stir, int space)
 {
 	int err;
-	unsigned count;
-	__u8 regs[3];
-	unsigned long timeout = jiffies + HZ/10;
+	unsigned long count, status;
 
-	for(;;) {
 	/* Read FIFO status and count */
-		err = read_reg(stir, REG_FIFOCTL, regs, 3);
-		if (unlikely(err != 3)) {
-			WARNING("%s: FIFO register read error: %d\n",
+	for(;;) {
+		err = read_reg(stir, REG_FIFOCTL, stir->fifo_status, 
+				   FIFO_REGS_SIZE);
+		if (unlikely(err != FIFO_REGS_SIZE)) {
+			warn("%s: FIFO register read error: %d", 
 			     stir->netdev->name, err);
+
 			return err;
 		}
 
+		status = stir->fifo_status[0];
+		count = (unsigned)(stir->fifo_status[2] & 0x1f) << 8 
+			| stir->fifo_status[1];
+
+		pr_debug("fifo status 0x%lx count %lu\n", status, count);
+
+		/* error when receive/transmit fifo gets confused */
+		if (status & FIFOCTL_RXERR) {
+			stir->stats.rx_fifo_errors++;
+			stir->stats.rx_errors++;
+			break;
+		}
+
+		if (status & FIFOCTL_TXERR) {
+			stir->stats.tx_fifo_errors++;
+			stir->stats.tx_errors++;
+			break;
+		}
+
 		/* is fifo receiving already, or empty */
-		if (!(regs[0] & FIFOCTL_DIR)
-		    || (regs[0] & FIFOCTL_EMPTY))
+		if (!(status & FIFOCTL_DIR)
+		    || (status & FIFOCTL_EMPTY))
 			return 0;
 
 		if (signal_pending(current))
@@ -658,40 +647,37 @@ static int fifo_txwait(struct stir_cb *stir, unsigned space)
 		    || !netif_device_present(stir->netdev))
 			return -ESHUTDOWN;
 
-		count = (unsigned)(regs[2] & 0x1f) << 8 | regs[1];
-
-		pr_debug("%s: fifo status 0x%x count %u\n",
-			 stir->netdev->name, regs[0], count);
-
 		/* only waiting for some space */
-		if (space && STIR_FIFO_SIZE - 4 > space + count)
+		if (space >= 0 && STIR_FIFO_SIZE - 4 > space + count)
 			return 0;
 
-		if (time_after(jiffies, timeout)) {
-			WARNING("%s: transmit fifo timeout status=0x%x count=%d\n",
-				stir->netdev->name, regs[0], count);
-			++stir->stats.tx_errors;
-			irda_device_set_media_busy(stir->netdev, TRUE);
-			return -ETIMEDOUT;
-		}
-
 		/* estimate transfer time for remaining chars */
 		wait_ms((count * 8000) / stir->speed);
 	}
+			
+	err = write_reg(stir, REG_FIFOCTL, FIFOCTL_CLR);
+	if (err) 
+		return err;
+	err = write_reg(stir, REG_FIFOCTL, 0);
+	if (err)
+		return err;
+
+	return 0;
 }
 
 
 /* Wait for turnaround delay before starting transmit.  */
-static void turnaround_delay(long us, const struct timespec *last)
+static void turnaround_delay(const struct stir_cb *stir, long us)
 {
 	long ticks;
-	struct timespec now = CURRENT_TIME;
+	struct timeval now;
 
 	if (us <= 0)
 		return;
 
-	us -= (now.tv_sec - last->tv_sec) * USEC_PER_SEC;
-	us -= (now.tv_nsec - last->tv_nsec) / NSEC_PER_USEC;
+	do_gettimeofday(&now);
+	us -= (now.tv_sec - stir->rx_time.tv_sec) * USEC_PER_SEC;
+	us -= now.tv_usec - stir->rx_time.tv_usec;
 	if (us < 10)
 		return;
 
@@ -707,77 +693,60 @@ static void turnaround_delay(long us, const struct timespec *last)
  * Start receiver by submitting a request to the receive pipe.
  * If nothing is available it will return after rx_interval.
  */
-static void receive_start(struct stir_cb *stir)
+static int receive_start(struct stir_cb *stir)
 {
-	int i;
-
-	if (test_and_set_bit(STIR_STATE_RECEIVING, &stir->state))
-		return;
-
-	if (fifo_txwait(stir, 0))
-		return;
-
-	for (i = 0; i < NUM_RX_URBS; i++) {
-		struct urb *urb = stir->rx_urbs[i];
-
-		usb_fill_int_urb(urb, stir->usbdev, stir->rx_intpipe,
-				 stir->rx_data[i], STIR_FIFO_SIZE,
-				 stir_usb_receive, stir, rx_interval);
-
-		if (usb_submit_urb(urb, GFP_KERNEL))
-			urb->status = -EINVAL;
-	}
+	/* reset state */
+	stir->receiving = 1;
 
-	if (i == 0) {
-		/* if nothing got queued, then just retry next time */
-		if (net_ratelimit())
-			WARNING("%s: no receive buffers avaiable\n",
-				stir->netdev->name);
+	stir->rx_buff.in_frame = FALSE;
+	stir->rx_buff.state = OUTSIDE_FRAME;
 
-		clear_bit(STIR_STATE_RECEIVING, &stir->state);
-	}
+	stir->rx_urb->status = 0;
+	return usb_submit_urb(stir->rx_urb, GFP_KERNEL);
 }
 
 /* Stop all pending receive Urb's */
 static void receive_stop(struct stir_cb *stir)
 {
-	int i;
+	stir->receiving = 0;
+	usb_unlink_urb(stir->rx_urb);
 
-	for (i = 0; i < NUM_RX_URBS; i++) {
-		struct urb *urb = stir->rx_urbs[i];
-		usb_unlink_urb(urb);
-	}
+	if (stir->rx_buff.in_frame) 
+		stir->stats.collisions++;
 }
-
-/* Send wrapped data (in tx_data) to device */
-static void stir_send(struct stir_cb *stir)
+/*
+ * Wrap data in socket buffer and send it.
+ */
+static void stir_send(struct stir_cb *stir, struct sk_buff *skb)
 {
-	int rc;
+	unsigned wraplen;
+	int first_frame = 0;
 
-	if (test_and_clear_bit(STIR_STATE_RECEIVING, &stir->state)) {
+	/* if receiving, need to turnaround */
+	if (stir->receiving) {
 		receive_stop(stir);
+		turnaround_delay(stir, irda_get_mtt(skb));
+		first_frame = 1;
+	}
 
-		turnaround_delay(stir->tx_mtt, &stir->rx_time);
+	if (isfir(stir->speed))
+		wraplen = wrap_fir_skb(skb, stir->io_buf);
+	else
+		wraplen = wrap_sir_skb(skb, stir->io_buf);
 		
-		if (stir->rx_buff.in_frame)
-			++stir->stats.collisions;
-	}
-	else if (fifo_txwait(stir, stir->tx_len))
-		return; /* shutdown or major errors */
+	/* check for space available in fifo */
+	if (!first_frame)
+		fifo_txwait(stir, wraplen);
 
+	stir->stats.tx_packets++;
+	stir->stats.tx_bytes += skb->len;
 	stir->netdev->trans_start = jiffies;
+	pr_debug("send %d (%d)\n", skb->len, wraplen);
 
-	pr_debug("%s: send %d\n", stir->netdev->name, stir->tx_len);
-	rc = usb_bulk_msg(stir->usbdev,
-			  stir->tx_bulkpipe,
-			  stir->tx_data, stir->tx_len,
-			  NULL, MSECS_TO_JIFFIES(TRANSMIT_TIMEOUT));
-
-	if (unlikely(rc)) {
-		WARNING("%s: usb bulk message failed %d\n",
-			stir->netdev->name, rc);
+	if (usb_bulk_msg(stir->usbdev, usb_sndbulkpipe(stir->usbdev, 1),
+			 stir->io_buf, wraplen,
+			 NULL, MSECS_TO_JIFFIES(TRANSMIT_TIMEOUT))) 
 		stir->stats.tx_errors++;
-	}
 }
 
 /*
@@ -787,7 +756,7 @@ static int stir_transmit_thread(void *arg)
 {
 	struct stir_cb *stir = arg;
 	struct net_device *dev = stir->netdev;
-	DECLARE_WAITQUEUE(wait, current);
+	struct sk_buff *skb;
 
 	daemonize("%s", dev->name);
 	allow_signal(SIGTERM);
@@ -796,44 +765,58 @@ static int stir_transmit_thread(void *arg)
 	       && netif_device_present(dev)
 	       && !signal_pending(current))
 	{
-		/* make swsusp happy with our thread */
+		/* if suspending, then power off and wait */
 		if (current->flags & PF_FREEZE) {
+			if (stir->receiving)
 				receive_stop(stir);
+			else
+				fifo_txwait(stir, -1);
 
 			write_reg(stir, REG_CTRL1, CTRL1_TXPWD|CTRL1_RXPWD);
 
 			refrigerator(PF_IOTHREAD);
 
-			stir_reset(stir);
+			if (change_speed(stir, stir->speed))
+				break;
 		}
 
 		/* if something to send? */
-		if (test_and_clear_bit(STIR_STATE_TXREADY, &stir->state)) {
-			unsigned new_speed = stir->tx_newspeed;
+		skb = xchg(&stir->tx_pending, NULL);
+		if (skb) {
+			unsigned new_speed = irda_get_next_speed(skb);
+			netif_wake_queue(dev);
 
-			/* Note that we may both send a packet and
-			 * change speed in some cases. Jean II */
+			if (skb->len > 0)
+				stir_send(stir, skb);
+			dev_kfree_skb(skb);
 
-			if (stir->tx_len != 0)
-				stir_send(stir);
+			if (stir->speed != new_speed) {
+				if (fifo_txwait(stir, -1) ||
+				    change_speed(stir, new_speed))
+					break;
+			}
+			continue;
+		}
 
-			if (stir->speed != new_speed)
-				change_speed(stir, new_speed);
+		/* nothing to send? start receiving */
+		if (!stir->receiving 
+		    && irda_device_txqueue_empty(dev)) {
+			/* Wait otherwise chip gets confused. */
+			if (fifo_txwait(stir, -1))
+				break;
 
-			netif_wake_queue(stir->netdev);
+			if (unlikely(receive_start(stir))) {
+				if (net_ratelimit())
+					info("%s: receive usb submit failed",
+					     stir->netdev->name);
+				stir->receiving = 0;
+				wait_ms(10);
 				continue;
 			}
+		}
 
-		if (irda_device_txqueue_empty(dev))
-			receive_start(stir);
-
-		set_task_state(current, TASK_INTERRUPTIBLE);
-		add_wait_queue(&stir->thr_wait, &wait);
-		if (test_bit(STIR_STATE_TXREADY, &stir->state))
-			__set_task_state(current, TASK_RUNNING);
-		else
-			schedule_timeout(HZ/10);
-		remove_wait_queue(&stir->thr_wait, &wait);
+		/* sleep if nothing to send */
+		wait_event_interruptible(stir->thr_wait, stir->tx_pending);
 	}
 
 	complete_and_exit (&stir->thr_exited, 0);
@@ -841,48 +824,34 @@ static int stir_transmit_thread(void *arg)
 
 
 /*
- * Receive wrapped data into rx_data buffer.
- * This chip doesn't block until data is available, we just have
- * to read the FIFO perodically (ugh).
+ * USB bulk receive completion callback.
+ * Wakes up every ms (usb round trip) with wrapped 
+ * data.
  */
-static void stir_usb_receive(struct urb *urb, struct pt_regs *regs)
+static void stir_rcv_irq(struct urb *urb, struct pt_regs *regs)
 {
 	struct stir_cb *stir = urb->context;
 	int err;
 
+	/* in process of stopping, just drop data */
 	if (!netif_running(stir->netdev))
 		return;
 
-	switch (urb->status) {
-	case 0:
-		if(urb->actual_length > 0) {
-			pr_debug("%s: receive %d\n",
-				 stir->netdev->name, urb->actual_length);
+	/* unlink, shutdown, unplug, other nasties */
+	if (urb->status != 0) 
+		return;
+
+	if (urb->actual_length > 0) {
+		pr_debug("receive %d\n", urb->actual_length);
 		unwrap_chars(stir, urb->transfer_buffer,
 			     urb->actual_length);
 		
 		stir->netdev->last_rx = jiffies;
-			stir->rx_time = CURRENT_TIME;
-		}
-		break;
-
-	case -ECONNRESET:	/* killed but pending */
-	case -ENOENT:		/* killed but not in use */
-	case -ESHUTDOWN:
-		/* These are normal errors when URB is cancelled */
-		stir->rx_buff.in_frame = FALSE;
-		stir->rx_buff.state = OUTSIDE_FRAME;
-		return;
-
-	default:
-		WARNING("%s: received status %d\n", stir->netdev->name,
-			urb->status);
-		stir->stats.rx_errors++;
-		urb->status = 0;
+		do_gettimeofday(&stir->rx_time);
 	}
 
 	/* kernel thread is stopping receiver don't resubmit */
-	if (!test_bit(STIR_STATE_RECEIVING, &stir->state))
+	if (!stir->receiving)
 		return;
 
 	/* resubmit existing urb */
@@ -890,14 +859,13 @@ static void stir_usb_receive(struct urb *urb, struct pt_regs *regs)
 
 	/* in case of error, the kernel thread will restart us */
 	if (err) {
-		WARNING("%s: usb receive submit error: %d\n",
+		warn("%s: usb receive submit error: %d",
 			stir->netdev->name, err);
-		urb->status = -ENOENT;
+		stir->receiving = 0;
 		wake_up(&stir->thr_wait);
 	}
 }
 
-
 /*
  * Function stir_net_open (dev)
  *
@@ -906,49 +874,49 @@ static void stir_usb_receive(struct urb *urb, struct pt_regs *regs)
 static int stir_net_open(struct net_device *netdev)
 {
 	struct stir_cb *stir = netdev->priv;
-	int i, err;
+	int err;
 	char hwname[16];
 
-	err = stir_reset(stir);
+	err = usb_clear_halt(stir->usbdev, usb_sndbulkpipe(stir->usbdev, 1));
+	if (err)
+		goto err_out1;
+	err = usb_clear_halt(stir->usbdev, usb_rcvbulkpipe(stir->usbdev, 2));
 	if (err)
 		goto err_out1;
 
-	err = -ENOMEM;
-
-	/* Note: Max SIR frame possible is 4273 */
-	stir->tx_data = kmalloc(STIR_FIFO_SIZE, GFP_KERNEL);
-	if (!stir->tx_data) {
-		ERROR("%s(), alloc failed for rxbuf!\n", __FUNCTION__);
+	err = change_speed(stir, 9600);
+	if (err)
 		goto err_out1;
-	}
+
+	err = -ENOMEM;
 
 	/* Initialize for SIR/FIR to copy data directly into skb.  */
+	stir->receiving = 0;
 	stir->rx_buff.truesize = IRDA_SKB_MAX_MTU;
 	stir->rx_buff.skb = dev_alloc_skb(IRDA_SKB_MAX_MTU);
-	if (!stir->rx_buff.skb) {
-		ERROR("%s(), dev_alloc_skb() failed for rxbuf!\n",
-		      __FUNCTION__);
-		goto err_out2;
-	}
+	if (!stir->rx_buff.skb) 
+		goto err_out1;
+
 	skb_reserve(stir->rx_buff.skb, 1);
 	stir->rx_buff.head = stir->rx_buff.skb->data;
-	stir->rx_time = CURRENT_TIME;
+	do_gettimeofday(&stir->rx_time);
 
-	/* Allocate N receive buffer's and urbs */
-	for (i = 0; i < NUM_RX_URBS; i++) {
-		stir->rx_urbs[i] = usb_alloc_urb(0, GFP_KERNEL);
-		if (!stir->rx_urbs[i]){
-			ERROR("%s(), usb_alloc_urb failed\n", __FUNCTION__);
-			goto err_out3;
-		}
+	stir->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
+	if (!stir->rx_urb) 
+		goto err_out2;
 
-		stir->rx_data[i] = kmalloc(STIR_FIFO_SIZE, GFP_KERNEL);
-		if (!stir->rx_data) {
-			usb_free_urb(stir->rx_urbs[i]);
-			ERROR("%s(), alloc failed for rxbuf!\n", __FUNCTION__);
+	stir->io_buf = kmalloc(STIR_FIFO_SIZE, GFP_KERNEL);
+	if (!stir->io_buf)
 		goto err_out3;
-		}
-	}
+
+	usb_fill_bulk_urb(stir->rx_urb, stir->usbdev,
+			  usb_rcvbulkpipe(stir->usbdev, 2),
+			  stir->io_buf, STIR_FIFO_SIZE,
+			  stir_rcv_irq, stir);
+
+	stir->fifo_status = kmalloc(FIFO_REGS_SIZE, GFP_KERNEL);
+	if (!stir->fifo_status) 
+		goto err_out4;
 		
 	/*
 	 * Now that everything should be initialized properly,
@@ -958,8 +926,8 @@ static int stir_net_open(struct net_device *netdev)
 	sprintf(hwname, "usb#%d", stir->usbdev->devnum);
 	stir->irlap = irlap_open(netdev, &stir->qos, hwname);
 	if (!stir->irlap) {
-		ERROR("%s(): irlap_open failed\n", __FUNCTION__);
-		goto err_out3;
+		err("irlap_open failed");
+		goto err_out5;
 	}
 
 	/** Start kernel thread for transmit.  */
@@ -967,25 +935,24 @@ static int stir_net_open(struct net_device *netdev)
 				      CLONE_FS|CLONE_FILES);
 	if (stir->thr_pid < 0) {
 		err = stir->thr_pid;
-		WARNING("%s: unable to start kernel thread\n",
-			stir->netdev->name);
-		goto err_out4;
+		err("unable to start kernel thread");
+		goto err_out6;
 	}
 
 	netif_start_queue(netdev);
 
 	return 0;
 
- err_out4:
+ err_out6:
 	irlap_close(stir->irlap);
+ err_out5:
+	kfree(stir->fifo_status);
+ err_out4:
+	kfree(stir->io_buf);
  err_out3:
-	while(--i >= 0) {
-		usb_free_urb(stir->rx_urbs[i]);
-		kfree(stir->rx_data[i]);
-	}
-	kfree_skb(stir->rx_buff.skb);
+	usb_free_urb(stir->rx_urb);
  err_out2:
-	kfree(stir->tx_data);
+	kfree_skb(stir->rx_buff.skb);
  err_out1:
 	return err;
 }
@@ -999,7 +966,6 @@ static int stir_net_open(struct net_device *netdev)
 static int stir_net_close(struct net_device *netdev)
 {
 	struct stir_cb *stir = netdev->priv;
-	int i;
 
 	/* Stop transmit processing */
 	netif_stop_queue(netdev);
@@ -1007,15 +973,13 @@ static int stir_net_close(struct net_device *netdev)
 	/* Kill transmit thread */
 	kill_proc(stir->thr_pid, SIGTERM, 1);
 	wait_for_completion(&stir->thr_exited);
-	kfree(stir->tx_data);
+	kfree(stir->fifo_status);
 
-	clear_bit(STIR_STATE_RECEIVING, &stir->state);
-	receive_stop(stir);
+	/* Mop up receive urb's */
+	usb_unlink_urb(stir->rx_urb);
 	
-	for (i = 0; i < NUM_RX_URBS; i++) {
-		usb_free_urb(stir->rx_urbs[i]);
-		kfree(stir->rx_data[i]);
-	}
+	kfree(stir->io_buf);
+	usb_free_urb(stir->rx_urb);
 	kfree_skb(stir->rx_buff.skb);
 
 	/* Stop and remove instance of IrLAP */
@@ -1057,7 +1021,7 @@ static int stir_net_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 
 	case SIOCGRECEIVING:
 		/* Only approximately true */
-		irq->ifr_receiving = test_bit(STIR_STATE_RECEIVING, &stir->state);
+		irq->ifr_receiving = stir->receiving;
 		break;
 
 	default:
@@ -1076,53 +1040,6 @@ static struct net_device_stats *stir_net_get_stats(struct net_device *dev)
 	return &stir->stats;
 }
 
-/*
- *    Parse the various endpoints and find the one we need.
- *
- * The endpoint are the pipes used to communicate with the USB device.
- * The spec defines 2 endpoints of type bulk transfer, one in, and one out.
- * These are used to pass frames back and forth with the dongle.
- */
-static int stir_setup_usb(struct stir_cb *stir, struct usb_interface *intf)
-{
-	struct usb_device *usbdev = interface_to_usbdev(intf);
-	const struct usb_host_interface *interface
-		= &intf->altsetting[intf->act_altsetting];
-	const struct usb_endpoint_descriptor *ep_in = NULL;
-	const struct usb_endpoint_descriptor *ep_out = NULL;
-	int i;
-
-	if (interface->desc.bNumEndpoints != 2) {
-		WARNING("%s: expected two endpoints\n", __FUNCTION__);
-		return -ENODEV;
-	}
-
-	for(i = 0; i < interface->desc.bNumEndpoints; i++) {
-		const struct usb_endpoint_descriptor *ep
-			= &interface->endpoint[i].desc;
-
-		if ((ep->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK)
-		    == USB_ENDPOINT_XFER_BULK) {
-			/* We need to find an IN and an OUT */
-			if ((ep->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN)
-				ep_in = ep;
-			else
-				ep_out = ep;
-		} else
-			WARNING("%s: unknown endpoint type 0x%x\n",
-				__FUNCTION__, ep->bmAttributes);
-	}
-
-	if (!ep_in || !ep_out)
-		return -EIO;
-
-	stir->tx_bulkpipe = usb_sndbulkpipe(usbdev,
-			    ep_out->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
-	stir->rx_intpipe = usb_rcvintpipe(usbdev,
-			    ep_in->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
-	return 0;
-}
-
 /*
  * This routine is called by the USB subsystem for each new device
  * in the system. We need to check if the device is ours, and in
@@ -1149,9 +1066,9 @@ static int stir_probe(struct usb_interface *intf,
 	stir->netdev = net;
 	stir->usbdev = dev;
 
-	ret = stir_setup_usb(stir, intf);
+	ret = usb_reset_configuration(dev);
 	if (ret != 0) {
-		ERROR("%s(), Bogus endpoints...\n", __FUNCTION__);
+		err("usb reset configuration failed");
 		goto err_out2;
 	}
 
@@ -1180,10 +1097,6 @@ static int stir_probe(struct usb_interface *intf,
 	net->get_stats	     = stir_net_get_stats;
 	net->do_ioctl        = stir_net_ioctl;
 
-	ret = stir_reset(stir);
-	if (ret)
-		goto err_out2;
-
 	ret = register_netdev(net);
 	if (ret != 0)
 		goto err_out2;
@@ -1206,23 +1119,14 @@ static int stir_probe(struct usb_interface *intf,
 static void stir_disconnect(struct usb_interface *intf)
 {
 	struct stir_cb *stir = usb_get_intfdata(intf);
-	struct net_device *net;
 
-	usb_set_intfdata(intf, NULL);
 	if (!stir)
 		return;
 
-	/* Stop transmitter */
-	net = stir->netdev;
-	netif_device_detach(net);
-
-	/* Remove netdevice */
-	unregister_netdev(net);
+	unregister_netdev(stir->netdev);
+	free_netdev(stir->netdev);
 
-	/* No longer attached to USB bus */
-	stir->usbdev = NULL;
-
-	free_netdev(net);
+	usb_set_intfdata(intf, NULL);
 }
 
 

drivers/usb/gadget/inode.c

@@ -1812,7 +1812,6 @@ gadgetfs_fill_super (struct super_block *sb, void *opts, int silent)
 		return -ENOMEM;
 	inode->i_op = &simple_dir_inode_operations;
 	if (!(d = d_alloc_root (inode))) {
-enomem:
 		iput (inode);
 		return -ENOMEM;
 	}
@@ -1823,12 +1822,15 @@ gadgetfs_fill_super (struct super_block *sb, void *opts, int silent)
 	 */
 	dev = dev_new ();
 	if (!dev)
-		goto enomem;
+		return -ENOMEM;
+
 	dev->sb = sb;
 	if (!(inode = gadgetfs_create_file (sb, CHIP,
 				dev, &dev_init_operations,
-				&dev->dentry)))
-		goto enomem;
+				&dev->dentry))) {
+		put_dev(dev);
+		return -ENOMEM;
+	}
 
 	/* other endpoint files are available after hardware setup,
 	 * from binding to a controller.
@@ -1849,8 +1851,10 @@ static void
 gadgetfs_kill_sb (struct super_block *sb)
 {
 	kill_litter_super (sb);
+	if (the_device) {
 		put_dev (the_device);
 		the_device = 0;
+	}
 }
 
 /*----------------------------------------------------------------------*/

drivers/video/aty/radeon_base.c

@@ -135,7 +135,7 @@ static struct pci_device_id radeonfb_pci_table[] = {
 	CHIP_DEF(PCI_CHIP_R200_QM,	R200,	CHIP_HAS_CRTC2),
 	/* Mobility M7 */
 	CHIP_DEF(PCI_CHIP_RADEON_LW,	RV200,	CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
-	CHIP_DEF(PCI_CHIP_RADEON_LW,	RV200,	CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
+	CHIP_DEF(PCI_CHIP_RADEON_LX,	RV200,	CHIP_HAS_CRTC2 | CHIP_IS_MOBILITY),
 	/* 7500 */
 	CHIP_DEF(PCI_CHIP_RV200_QW,	RV200,	CHIP_HAS_CRTC2),
 	CHIP_DEF(PCI_CHIP_RV200_QX,	RV200,	CHIP_HAS_CRTC2),

fs/adfs/super.c

@@ -333,6 +333,7 @@ static int adfs_fill_super(struct super_block *sb, void *data, int silent)
 	struct object_info root_obj;
 	unsigned char *b_data;
 	struct adfs_sb_info *asb;
+	struct inode *root;
 
 	asb = kmalloc(sizeof(*asb), GFP_KERNEL);
 	if (!asb)
@@ -443,10 +444,11 @@ static int adfs_fill_super(struct super_block *sb, void *data, int silent)
 		asb->s_namelen = ADFS_F_NAME_LEN;
 	}
 
-	sb->s_root = d_alloc_root(adfs_iget(sb, &root_obj));
+	root = adfs_iget(sb, &root_obj);
+	sb->s_root = d_alloc_root(root);
 	if (!sb->s_root) {
 		int i;
-
+		iput(root);
 		for (i = 0; i < asb->s_map_size; i++)
 			brelse(asb->s_map[i].dm_bh);
 		kfree(asb->s_map);

fs/afs/super.c

@@ -280,7 +280,6 @@ static int afs_fill_super(struct super_block *sb, void *data, int silent)
 	return 0;
 
  error:
-	dput(root);
 	iput(inode);
 	afs_put_volume(as->volume);
 	kfree(as);

fs/autofs4/inode.c

@@ -213,6 +213,9 @@ int autofs4_fill_super(struct super_block *s, void *data, int silent)
 	 * Get the root inode and dentry, but defer checking for errors.
 	 */
 	root_inode = autofs4_get_inode(s, autofs4_mkroot(sbi));
+	if (!root_inode)
+		goto fail_free;
+
 	root_inode->i_op = &autofs4_root_inode_operations;
 	root_inode->i_fop = &autofs4_root_operations;
 	root = d_alloc_root(root_inode);
@@ -264,22 +267,13 @@ int autofs4_fill_super(struct super_block *s, void *data, int silent)
 	 */
 fail_fput:
 	printk("autofs: pipe file descriptor does not contain proper ops\n");
-	/*
-	 * fput() can block, so we clear the super block first.
-	 */
 	fput(pipe);
 	/* fall through */
 fail_dput:
-	/*
-	 * dput() can block, so we clear the super block first.
-	 */
 	dput(root);
 	goto fail_free;
 fail_iput:
 	printk("autofs: get root dentry failed\n");
-	/*
-	 * iput() can block, so we clear the super block first.
-	 */
 	iput(root_inode);
 fail_free:
 	kfree(sbi);

fs/befs/linuxvfs.c

@@ -789,6 +789,7 @@ befs_fill_super(struct super_block *sb, void *data, int silent)
 	struct buffer_head *bh;
 	befs_sb_info *befs_sb;
 	befs_super_block *disk_sb;
+	struct inode *root;
 
 	const unsigned long sb_block = 0;
 	const off_t x86_sb_off = 512;
@@ -863,9 +864,10 @@ befs_fill_super(struct super_block *sb, void *data, int silent)
 	/* Set real blocksize of fs */
 	sb_set_blocksize(sb, (ulong) befs_sb->block_size);
 	sb->s_op = (struct super_operations *) &befs_sops;
-	sb->s_root =
-	    d_alloc_root(iget(sb, iaddr2blockno(sb, &(befs_sb->root_dir))));
+	root = iget(sb, iaddr2blockno(sb, &(befs_sb->root_dir)));
+	sb->s_root = d_alloc_root(root);
 	if (!sb->s_root) {
+		iput(root);
 		befs_error(sb, "get root inode failed");
 		goto unaquire_priv_sbp;
 	}

fs/coda/inode.c

@@ -195,6 +195,8 @@ static int coda_fill_super(struct super_block *sb, void *data, int silent)
 	printk("coda_read_super: rootinode is %ld dev %s\n", 
 	       root->i_ino, root->i_sb->s_id);
 	sb->s_root = d_alloc_root(root);
+	if (!sb->s_root)
+		goto error;
         return 0;
 
  error:

fs/cramfs/inode.c

@@ -199,6 +199,7 @@ static int cramfs_fill_super(struct super_block *sb, void *data, int silent)
 	struct cramfs_super super;
 	unsigned long root_offset;
 	struct cramfs_sb_info *sbi;
+	struct inode *root;
 
 	sbi = kmalloc(sizeof(struct cramfs_sb_info), GFP_KERNEL);
 	if (!sbi)
@@ -263,7 +264,14 @@ static int cramfs_fill_super(struct super_block *sb, void *data, int silent)
 
 	/* Set it all up.. */
 	sb->s_op = &cramfs_ops;
-	sb->s_root = d_alloc_root(get_cramfs_inode(sb, &super.root));
+	root = get_cramfs_inode(sb, &super.root);
+	if (!root)
+		goto out;
+	sb->s_root = d_alloc_root(root);
+	if (!sb->s_root) {
+		iput(root);
+		goto out;
+	}
 	return 0;
 out:
 	kfree(sbi);

fs/efs/super.c

@@ -210,6 +210,7 @@ int efs_fill_super(struct super_block *s, void *d, int silent)
 {
 	struct efs_sb_info *sb;
 	struct buffer_head *bh;
+	struct inode *root;
 
  	sb = kmalloc(sizeof(struct efs_sb_info), GFP_KERNEL);
 	if (!sb)
@@ -266,10 +267,12 @@ int efs_fill_super(struct super_block *s, void *d, int silent)
 		s->s_flags |= MS_RDONLY;
 	}
 	s->s_op   = &efs_superblock_operations;
-	s->s_root = d_alloc_root(iget(s, EFS_ROOTINODE));
+	root = iget(s, EFS_ROOTINODE);
+	s->s_root = d_alloc_root(root);
  
 	if (!(s->s_root)) {
 		printk(KERN_ERR "EFS: get root inode failed\n");
+		iput(root);
 		goto out_no_fs;
 	}
 

fs/ext2/super.c

@@ -563,6 +563,7 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
 	struct buffer_head * bh;
 	struct ext2_sb_info * sbi;
 	struct ext2_super_block * es;
+	struct inode *root;
 	unsigned long block, sb_block = 1;
 	unsigned long logic_sb_block = get_sb_block(&data);
 	unsigned long offset = 0;
@@ -815,15 +816,17 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
 	 */
 	sb->s_op = &ext2_sops;
 	sb->s_export_op = &ext2_export_ops;
-	sb->s_root = d_alloc_root(iget(sb, EXT2_ROOT_INO));
-	if (!sb->s_root || !S_ISDIR(sb->s_root->d_inode->i_mode) ||
-	    !sb->s_root->d_inode->i_blocks || !sb->s_root->d_inode->i_size) {
-		if (sb->s_root) {
+	root = iget(sb, EXT2_ROOT_INO);
+	sb->s_root = d_alloc_root(root);
+	if (!sb->s_root) {
+		iput(root);
+		printk(KERN_ERR "EXT2-fs: get root inode failed\n");
+		goto failed_mount2;
+	}
+	if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) {
 		dput(sb->s_root);
 		sb->s_root = NULL;
 		printk(KERN_ERR "EXT2-fs: corrupt root inode, run e2fsck\n");
-		} else
-			printk(KERN_ERR "EXT2-fs: get root inode failed\n");
 		goto failed_mount2;
 	}
 	if (EXT2_HAS_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_HAS_JOURNAL))

fs/ext3/super.c

@@ -1040,6 +1040,7 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
 	unsigned long offset = 0;
 	unsigned long journal_inum = 0;
 	unsigned long def_mount_opts;
+	struct inode *root;
 	int blocksize;
 	int hblock;
 	int db_count;
@@ -1354,16 +1355,17 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
 	 * so we can safely mount the rest of the filesystem now.
 	 */
 
-	sb->s_root = d_alloc_root(iget(sb, EXT3_ROOT_INO));
-	if (!sb->s_root || !S_ISDIR(sb->s_root->d_inode->i_mode) ||
-	    !sb->s_root->d_inode->i_blocks || !sb->s_root->d_inode->i_size) {
-		if (sb->s_root) {
+	root = iget(sb, EXT3_ROOT_INO);
+	sb->s_root = d_alloc_root(root);
+	if (!sb->s_root) {
+		printk(KERN_ERR "EXT3-fs: get root inode failed\n");
+		iput(root);
+		goto failed_mount3;
+	}
+	if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) {
 		dput(sb->s_root);
 		sb->s_root = NULL;
-			printk(KERN_ERR
-			       "EXT3-fs: corrupt root inode, run e2fsck\n");
-		} else
-			printk(KERN_ERR "EXT3-fs: get root inode failed\n");
+		printk(KERN_ERR "EXT3-fs: corrupt root inode, run e2fsck\n");
 		goto failed_mount3;
 	}
 

fs/freevxfs/vxfs_super.c

@@ -143,6 +143,7 @@ static int vxfs_fill_super(struct super_block *sbp, void *dp, int silent)
 	struct vxfs_sb		*rsbp;
 	struct buffer_head	*bp = NULL;
 	u_long			bsize;
+	struct inode *root;
 
 	infp = kmalloc(sizeof(*infp), GFP_KERNEL);
 	if (!infp) {
@@ -208,8 +209,10 @@ static int vxfs_fill_super(struct super_block *sbp, void *dp, int silent)
 	}
 
 	sbp->s_op = &vxfs_super_ops;
-	sbp->s_root = d_alloc_root(iget(sbp, VXFS_ROOT_INO));
+	root = iget(sbp, VXFS_ROOT_INO);
+	sbp->s_root = d_alloc_root(root);
 	if (!sbp->s_root) {
+		iput(root);
 		printk(KERN_WARNING "vxfs: unable to get root dentry.\n");
 		goto out_free_ilist;
 	}

fs/hfs/super.c

@@ -294,13 +294,15 @@ static int hfs_fill_super(struct super_block *sb, void *data, int silent)
 
 	sb->s_root = d_alloc_root(root_inode);
 	if (!sb->s_root)
-		goto bail_no_root;
+		goto bail_iput;
 
 	sb->s_root->d_op = &hfs_dentry_operations;
 
 	/* everything's okay */
 	return 0;
 
+bail_iput:
+	iput(root_inode);
 bail_no_root:
 	hfs_warn("hfs_fs: get root inode failed.\n");
 	hfs_mdb_put(sb);

fs/hfsplus/super.c

@@ -278,6 +278,7 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent)
 	struct hfsplus_sb_info *sbi;
 	hfsplus_cat_entry entry;
 	struct hfs_find_data fd;
+	struct inode *root;
 	struct qstr str;
 	int err = -EINVAL;
 
@@ -364,10 +365,12 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent)
 	}
 
 	/* Load the root directory */
-	sb->s_root = d_alloc_root(iget(sb, HFSPLUS_ROOT_CNID));
+	root = iget(sb, HFSPLUS_ROOT_CNID);
+	sb->s_root = d_alloc_root(root);
 	if (!sb->s_root) {
 		if (!silent)
 			printk("HFS+-fs: failed to load root directory\n");
+		iput(root);
 		goto cleanup;
 	}
 

fs/hpfs/super.c

@@ -448,6 +448,7 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
 	struct hpfs_super_block *superblock;
 	struct hpfs_spare_block *spareblock;
 	struct hpfs_sb_info *sbi;
+	struct inode *root;
 
 	uid_t uid;
 	gid_t gid;
@@ -613,10 +614,11 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
 	brelse(bh0);
 
 	hpfs_lock_iget(s, 1);
-	s->s_root = d_alloc_root(iget(s, sbi->sb_root));
+	root = iget(s, sbi->sb_root);
 	hpfs_unlock_iget(s);
-	if (!s->s_root || !s->s_root->d_inode) {
-		printk("HPFS: iget failed. Why???\n");
+	s->s_root = d_alloc_root(root);
+	if (!s->s_root) {
+		iput(root);
 		goto bail0;
 	}
 	hpfs_set_dentry_operations(s->s_root);
@@ -627,22 +629,24 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
 
 	root_dno = hpfs_fnode_dno(s, sbi->sb_root);
 	if (root_dno)
-		de = map_dirent(s->s_root->d_inode, root_dno, "\001\001", 2, NULL, &qbh);
-	if (!root_dno || !de) hpfs_error(s, "unable to find root dir");
+		de = map_dirent(root, root_dno, "\001\001", 2, NULL, &qbh);
+	if (!de)
+		hpfs_error(s, "unable to find root dir");
 	else {
-		s->s_root->d_inode->i_atime.tv_sec = local_to_gmt(s, de->read_date);
-		s->s_root->d_inode->i_atime.tv_nsec = 0;
-		s->s_root->d_inode->i_mtime.tv_sec = local_to_gmt(s, de->write_date);
-		s->s_root->d_inode->i_mtime.tv_nsec = 0;
-		s->s_root->d_inode->i_ctime.tv_sec = local_to_gmt(s, de->creation_date);
-		s->s_root->d_inode->i_ctime.tv_nsec = 0;
-		hpfs_i(s->s_root->d_inode)->i_ea_size = de->ea_size;
-		hpfs_i(s->s_root->d_inode)->i_parent_dir = s->s_root->d_inode->i_ino;
-		if (s->s_root->d_inode->i_size == -1) s->s_root->d_inode->i_size = 2048;
-		if (s->s_root->d_inode->i_blocks == -1) s->s_root->d_inode->i_blocks = 5;
+		root->i_atime.tv_sec = local_to_gmt(s, de->read_date);
+		root->i_atime.tv_nsec = 0;
+		root->i_mtime.tv_sec = local_to_gmt(s, de->write_date);
+		root->i_mtime.tv_nsec = 0;
+		root->i_ctime.tv_sec = local_to_gmt(s, de->creation_date);
+		root->i_ctime.tv_nsec = 0;
+		hpfs_i(root)->i_ea_size = de->ea_size;
+		hpfs_i(root)->i_parent_dir = root->i_ino;
+		if (root->i_size == -1)
+			root->i_size = 2048;
+		if (root->i_blocks == -1)
+			root->i_blocks = 5;
+		hpfs_brelse4(&qbh);
 	}
-	if (de) hpfs_brelse4(&qbh);
-
 	return 0;
 
 bail4:	brelse(bh2);

fs/romfs/inode.c

@@ -115,6 +115,7 @@ static int romfs_fill_super(struct super_block *s, void *data, int silent)
 {
 	struct buffer_head *bh;
 	struct romfs_super_block *rsb;
+	struct inode *root;
 	int sz;
 
 	/* I would parse the options here, but there are none.. :) */
@@ -154,23 +155,25 @@ static int romfs_fill_super(struct super_block *s, void *data, int silent)
 	      strnlen(rsb->name, ROMFS_MAXFN) + 1 + ROMFH_PAD)
 	     & ROMFH_MASK;
 
-	brelse(bh);
-
 	s->s_op	= &romfs_ops;
+	root = iget(s, sz);
+	if (!root)
+		goto out;
+
 	s->s_root = d_alloc_root(iget(s, sz));
 
 	if (!s->s_root)
-		goto outnobh;
+		goto outiput;
 
-	/* Ehrhm; sorry.. :)  And thanks to Hans-Joachim Widmaier  :) */
-	if (0) {
+	brelse(bh);
+	return 0;
+
+outiput:
+	iput(root);
 out:
 	brelse(bh);
 outnobh:
 	return -EINVAL;
-	}
-
-	return 0;
 }
 
 /* That's simple too. */

include/asm-sparc/unistd.h

@@ -461,7 +461,6 @@ asmlinkage unsigned long sys_mmap2(
 				unsigned long addr, unsigned long len,
 				unsigned long prot, unsigned long flags,
 				unsigned long fd, unsigned long pgoff);
-asmlinkage int sys_ioperm(unsigned long from, unsigned long num, int on);
 struct sigaction;
 asmlinkage long sys_rt_sigaction(int sig,
 				const struct sigaction __user *act,