diff mbox

[3.16.y-ckt,stable] Patch "xen-pciback: Add name prefix to global 'permissive' variable" has been added to staging queue

Message ID 1432125091-8931-1-git-send-email-luis.henriques@canonical.com
State New
Headers show

Commit Message

Luis Henriques May 20, 2015, 12:31 p.m. UTC
This is a note to let you know that I have just added a patch titled

    xen-pciback: Add name prefix to global 'permissive' variable

to the linux-3.16.y-queue branch of the 3.16.y-ckt extended stable tree 
which can be found at:

    http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.16.y-queue

This patch is scheduled to be released in version 3.16.7-ckt12.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.16.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

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From 8ce16f59d5cd4aa8f9a649eb9cc737e068714208 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben@decadent.org.uk>
Date: Mon, 13 Apr 2015 00:26:35 +0100
Subject: xen-pciback: Add name prefix to global 'permissive' variable

commit 8014bcc86ef112eab9ee1db312dba4e6b608cf89 upstream.

The variable for the 'permissive' module parameter used to be static
but was recently changed to be extern.  This puts it in the kernel
global namespace if the driver is built-in, so its name should begin
with a prefix identifying the driver.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Fixes: af6fc858a35b ("xen-pciback: limit guest control of command register")
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 drivers/xen/xen-pciback/conf_space.c        | 6 +++---
 drivers/xen/xen-pciback/conf_space.h        | 2 +-
 drivers/xen/xen-pciback/conf_space_header.c | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)
diff mbox

Patch

diff --git a/drivers/xen/xen-pciback/conf_space.c b/drivers/xen/xen-pciback/conf_space.c
index 75fe3d466515..9c234209d8b5 100644
--- a/drivers/xen/xen-pciback/conf_space.c
+++ b/drivers/xen/xen-pciback/conf_space.c
@@ -16,8 +16,8 @@ 
 #include "conf_space.h"
 #include "conf_space_quirks.h"

-bool permissive;
-module_param(permissive, bool, 0644);
+bool xen_pcibk_permissive;
+module_param_named(permissive, xen_pcibk_permissive, bool, 0644);

 /* This is where xen_pcibk_read_config_byte, xen_pcibk_read_config_word,
  * xen_pcibk_write_config_word, and xen_pcibk_write_config_byte are created. */
@@ -262,7 +262,7 @@  int xen_pcibk_config_write(struct pci_dev *dev, int offset, int size, u32 value)
 		 * This means that some fields may still be read-only because
 		 * they have entries in the config_field list that intercept
 		 * the write and do nothing. */
-		if (dev_data->permissive || permissive) {
+		if (dev_data->permissive || xen_pcibk_permissive) {
 			switch (size) {
 			case 1:
 				err = pci_write_config_byte(dev, offset,
diff --git a/drivers/xen/xen-pciback/conf_space.h b/drivers/xen/xen-pciback/conf_space.h
index 2e1d73d1d5d0..62461a8ba1d6 100644
--- a/drivers/xen/xen-pciback/conf_space.h
+++ b/drivers/xen/xen-pciback/conf_space.h
@@ -64,7 +64,7 @@  struct config_field_entry {
 	void *data;
 };

-extern bool permissive;
+extern bool xen_pcibk_permissive;

 #define OFFSET(cfg_entry) ((cfg_entry)->base_offset+(cfg_entry)->field->offset)

diff --git a/drivers/xen/xen-pciback/conf_space_header.c b/drivers/xen/xen-pciback/conf_space_header.c
index 2d7369391472..f8baf463dd35 100644
--- a/drivers/xen/xen-pciback/conf_space_header.c
+++ b/drivers/xen/xen-pciback/conf_space_header.c
@@ -105,7 +105,7 @@  static int command_write(struct pci_dev *dev, int offset, u16 value, void *data)

 	cmd->val = value;

-	if (!permissive && (!dev_data || !dev_data->permissive))
+	if (!xen_pcibk_permissive && (!dev_data || !dev_data->permissive))
 		return 0;

 	/* Only allow the guest to control certain bits. */