linux-kernel - [PATCH v4 11/20] tty/hvc: xen: Use xen page definition

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Message-ID: <1441640038-23615-12-git-send-email-julien.grall@citrix.com>
Date:	Mon, 7 Sep 2015 16:33:49 +0100
From:	Julien Grall <julien.grall@...rix.com>
To:	<xen-devel@...ts.xenproject.org>
CC:	<linux-arm-kernel@...ts.infradead.org>, <ian.campbell@...rix.com>,
	<stefano.stabellini@...citrix.com>, <linux-kernel@...r.kernel.org>,
	"Julien Grall" <julien.grall@...rix.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jslaby@...e.cz>,
	David Vrabel <david.vrabel@...rix.com>,
	Boris Ostrovsky <boris.ostrovsky@...cle.com>,
	<linuxppc-dev@...ts.ozlabs.org>
Subject: [PATCH v4 11/20] tty/hvc: xen: Use xen page definition

The console ring is always based on the page granularity of Xen.

Signed-off-by: Julien Grall <julien.grall@...rix.com>
Reviewed-by: Stefano Stabellini <stefano.stabellini@...citrix.com>

---
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Jiri Slaby <jslaby@...e.cz>
Cc: David Vrabel <david.vrabel@...rix.com>
Cc: Boris Ostrovsky <boris.ostrovsky@...cle.com>
Cc: linuxppc-dev@...ts.ozlabs.org

    Changes in v4:
        - The ring is always 4K (i.e XEN_PAGE_SIZE), so no need to
        map with PAGE_SIZE. This was correctly done in v2 but lost with
        the rebase to the "s/mfn/gfn/" series

    Changes in v3:
        - Some changes has been moved in the series "Use correctly the
        Xen memory terminologies in Linux".
        - Add Stefano's reviewed-by
---
 drivers/tty/hvc/hvc_xen.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/hvc/hvc_xen.c b/drivers/tty/hvc/hvc_xen.c
index 10beb15..fa816b7 100644
--- a/drivers/tty/hvc/hvc_xen.c
+++ b/drivers/tty/hvc/hvc_xen.c
@@ -230,7 +230,7 @@ static int xen_hvm_console_init(void)
 	if (r < 0 || v == 0)
 		goto err;
 	gfn = v;
-	info->intf = xen_remap(gfn << PAGE_SHIFT, PAGE_SIZE);
+	info->intf = xen_remap(gfn << XEN_PAGE_SHIFT, XEN_PAGE_SIZE);
 	if (info->intf == NULL)
 		goto err;
 	info->vtermno = HVC_COOKIE;
@@ -472,7 +472,7 @@ static int xencons_resume(struct xenbus_device *dev)
 	struct xencons_info *info = dev_get_drvdata(&dev->dev);
 
 	xencons_disconnect_backend(info);
-	memset(info->intf, 0, PAGE_SIZE);
+	memset(info->intf, 0, XEN_PAGE_SIZE);
 	return xencons_connect_backend(dev, info);
 }
 
-- 
2.1.4

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