[RCAR] Remove Fix on kernel

- Due to RCAR BSP update to v3.19.

Bug-AGL: SPEC-2543

Change-Id: Iad52b6800c3a8edfc16fe2c7d255b6da71c936f6
Signed-off-by: Ronan Le Martret <ronan.lemartret@iot.bzh>

1 files changed, 0 insertions, 145 deletions

diff --git a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/0001-NFC-pn533-don-t-send-USB-data-off-of-the-stack.patch b/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/0001-NFC-pn533-don-t-send-USB-data-off-of-the-stack.patch
deleted file mode 100644
index b64cc16cf..000000000
--- a/meta-agl-bsp/meta-rcar-gen3/recipes-kernel/linux/files/0001-NFC-pn533-don-t-send-USB-data-off-of-the-stack.patch
+++ /dev/null
@@ -1,145 +0,0 @@
-From dbafc28955fa6779dc23d1607a0fee5e509a278b Mon Sep 17 00:00:00 2001
-From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-Date: Sun, 20 May 2018 15:19:46 +0200
-Subject: [PATCH] NFC: pn533: don't send USB data off of the stack
-
-It's amazing that this driver ever worked, but now that x86 doesn't
-allow USB data to be sent off of the stack, it really does not work at
-all.  Fix this up by properly allocating the data for the small
-"commands" that get sent to the device off of the stack.
-
-We do this for one command by having a whole urb just for ack messages,
-as they can be submitted in interrupt context, so we can not use
-usb_bulk_msg().  But the poweron command can sleep (and does), so use
-usb_bulk_msg() for that transfer.
-
-Reported-by: Carlos Manuel Santos <cmmpsantos@gmail.com>
-Cc: Samuel Ortiz <sameo@linux.intel.com>
-Cc: Stephen Hemminger <stephen@networkplumber.org>
-Cc: stable <stable@vger.kernel.org>
-Reviewed-by: Johan Hovold <johan@kernel.org>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
----
- drivers/nfc/pn533/usb.c | 42 +++++++++++++++++++++++++++++------------
- 1 file changed, 30 insertions(+), 12 deletions(-)
-
-diff --git a/drivers/nfc/pn533/usb.c b/drivers/nfc/pn533/usb.c
-index e153e8b64bb8..d5553c47014f 100644
---- a/drivers/nfc/pn533/usb.c
-+++ b/drivers/nfc/pn533/usb.c
-@@ -62,6 +62,9 @@ struct pn533_usb_phy {
- 	struct urb *out_urb;
- 	struct urb *in_urb;
- 
-+	struct urb *ack_urb;
-+	u8 *ack_buffer;
-+
- 	struct pn533 *priv;
- };
- 
-@@ -150,13 +153,16 @@ static int pn533_usb_send_ack(struct pn533 *dev, gfp_t flags)
- 	struct pn533_usb_phy *phy = dev->phy;
- 	static const u8 ack[6] = {0x00, 0x00, 0xff, 0x00, 0xff, 0x00};
- 	/* spec 7.1.1.3:  Preamble, SoPC (2), ACK Code (2), Postamble */
--	int rc;
- 
--	phy->out_urb->transfer_buffer = (u8 *)ack;
--	phy->out_urb->transfer_buffer_length = sizeof(ack);
--	rc = usb_submit_urb(phy->out_urb, flags);
-+	if (!phy->ack_buffer) {
-+		phy->ack_buffer = kmemdup(ack, sizeof(ack), flags);
-+		if (!phy->ack_buffer)
-+			return -ENOMEM;
-+	}
- 
--	return rc;
-+	phy->ack_urb->transfer_buffer = phy->ack_buffer;
-+	phy->ack_urb->transfer_buffer_length = sizeof(ack);
-+	return usb_submit_urb(phy->ack_urb, flags);
- }
- 
- static int pn533_usb_send_frame(struct pn533 *dev,
-@@ -375,26 +381,31 @@ static int pn533_acr122_poweron_rdr(struct pn533_usb_phy *phy)
- 	/* Power on th reader (CCID cmd) */
- 	u8 cmd[10] = {PN533_ACR122_PC_TO_RDR_ICCPOWERON,
- 		      0, 0, 0, 0, 0, 0, 3, 0, 0};
-+	char *buffer;
-+	int transferred;
- 	int rc;
- 	void *cntx;
- 	struct pn533_acr122_poweron_rdr_arg arg;
- 
- 	dev_dbg(&phy->udev->dev, "%s\n", __func__);
- 
-+	buffer = kmemdup(cmd, sizeof(cmd), GFP_KERNEL);
-+	if (!buffer)
-+		return -ENOMEM;
-+
- 	init_completion(&arg.done);
- 	cntx = phy->in_urb->context;  /* backup context */
- 
- 	phy->in_urb->complete = pn533_acr122_poweron_rdr_resp;
- 	phy->in_urb->context = &arg;
- 
--	phy->out_urb->transfer_buffer = cmd;
--	phy->out_urb->transfer_buffer_length = sizeof(cmd);
--
- 	print_hex_dump_debug("ACR122 TX: ", DUMP_PREFIX_NONE, 16, 1,
- 		       cmd, sizeof(cmd), false);
- 
--	rc = usb_submit_urb(phy->out_urb, GFP_KERNEL);
--	if (rc) {
-+	rc = usb_bulk_msg(phy->udev, phy->out_urb->pipe, buffer, sizeof(cmd),
-+			  &transferred, 0);
-+	kfree(buffer);
-+	if (rc || (transferred != sizeof(cmd))) {
- 		nfc_err(&phy->udev->dev,
- 			"Reader power on cmd error %d\n", rc);
- 		return rc;
-@@ -490,8 +501,9 @@ static int pn533_usb_probe(struct usb_interface *interface,
- 
- 	phy->in_urb = usb_alloc_urb(0, GFP_KERNEL);
- 	phy->out_urb = usb_alloc_urb(0, GFP_KERNEL);
-+	phy->ack_urb = usb_alloc_urb(0, GFP_KERNEL);
- 
--	if (!phy->in_urb || !phy->out_urb)
-+	if (!phy->in_urb || !phy->out_urb || !phy->ack_urb)
- 		goto error;
- 
- 	usb_fill_bulk_urb(phy->in_urb, phy->udev,
-@@ -501,7 +513,9 @@ static int pn533_usb_probe(struct usb_interface *interface,
- 	usb_fill_bulk_urb(phy->out_urb, phy->udev,
- 			  usb_sndbulkpipe(phy->udev, out_endpoint),
- 			  NULL, 0, pn533_send_complete, phy);
--
-+	usb_fill_bulk_urb(phy->ack_urb, phy->udev,
-+			  usb_sndbulkpipe(phy->udev, out_endpoint),
-+			  NULL, 0, pn533_send_complete, phy);
- 
- 	switch (id->driver_info) {
- 	case PN533_DEVICE_STD:
-@@ -554,6 +568,7 @@ static int pn533_usb_probe(struct usb_interface *interface,
- error:
- 	usb_free_urb(phy->in_urb);
- 	usb_free_urb(phy->out_urb);
-+	usb_free_urb(phy->ack_urb);
- 	usb_put_dev(phy->udev);
- 	kfree(in_buf);
- 
-@@ -573,10 +588,13 @@ static void pn533_usb_disconnect(struct usb_interface *interface)
- 
- 	usb_kill_urb(phy->in_urb);
- 	usb_kill_urb(phy->out_urb);
-+	usb_kill_urb(phy->ack_urb);
- 
- 	kfree(phy->in_urb->transfer_buffer);
- 	usb_free_urb(phy->in_urb);
- 	usb_free_urb(phy->out_urb);
-+	usb_free_urb(phy->ack_urb);
-+	kfree(phy->ack_buffer);
- 
- 	nfc_info(&interface->dev, "NXP PN533 NFC device disconnected\n");
- }
--- 
-2.17.1
-