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Date: Thu, 14 Apr 2011 08:50:12 -0700
From: Stephen Hemminger <shemminger@...tta.com>
To: Steve Hodgson <shodgson@...arflare.com>,
Ben Hutchings <bhutchings@...arflare.com>
Cc: Solarflare linux maintainers <linux-net-drivers@...arflare.com>,
netdev@...r.kernel.org
Subject: [PATCH net-next] sfc: make function tables const
The phy, mac, and board information structures should be const.
Since tables contain function pointer this improves security
(at least theoretically).
Compile tested only.
Signed-off-by: Stephen Hemminger <shemminger@...tta.com>
---
drivers/net/sfc/efx.c | 6 +++---
drivers/net/sfc/falcon.c | 4 ++--
drivers/net/sfc/falcon_xmac.c | 2 +-
drivers/net/sfc/mac.h | 4 ++--
drivers/net/sfc/mcdi_mac.c | 2 +-
drivers/net/sfc/mcdi_phy.c | 2 +-
drivers/net/sfc/net_driver.h | 6 +++---
drivers/net/sfc/nic.h | 6 +++---
drivers/net/sfc/phy.h | 8 ++++----
drivers/net/sfc/qt202x_phy.c | 2 +-
drivers/net/sfc/siena.c | 2 +-
drivers/net/sfc/tenxpress.c | 2 +-
drivers/net/sfc/txc43128_phy.c | 2 +-
13 files changed, 24 insertions(+), 24 deletions(-)
--- a/drivers/net/sfc/efx.c 2011-04-14 08:33:56.762355851 -0700
+++ b/drivers/net/sfc/efx.c 2011-04-14 08:43:13.544925178 -0700
@@ -2245,7 +2245,7 @@ static bool efx_port_dummy_op_poll(struc
return false;
}
-static struct efx_phy_operations efx_dummy_phy_operations = {
+static const struct efx_phy_operations efx_dummy_phy_operations = {
.init = efx_port_dummy_op_int,
.reconfigure = efx_port_dummy_op_int,
.poll = efx_port_dummy_op_poll,
@@ -2261,7 +2261,7 @@ static struct efx_phy_operations efx_dum
/* This zeroes out and then fills in the invariants in a struct
* efx_nic (including all sub-structures).
*/
-static int efx_init_struct(struct efx_nic *efx, struct efx_nic_type *type,
+static int efx_init_struct(struct efx_nic *efx, const struct efx_nic_type *type,
struct pci_dev *pci_dev, struct net_device *net_dev)
{
int i;
@@ -2451,7 +2451,7 @@ static int efx_pci_probe_main(struct efx
static int __devinit efx_pci_probe(struct pci_dev *pci_dev,
const struct pci_device_id *entry)
{
- struct efx_nic_type *type = (struct efx_nic_type *) entry->driver_data;
+ const struct efx_nic_type *type = (const struct efx_nic_type *) entry->driver_data;
struct net_device *net_dev;
struct efx_nic *efx;
int i, rc;
--- a/drivers/net/sfc/mcdi_phy.c 2011-04-14 08:34:22.730711864 -0700
+++ b/drivers/net/sfc/mcdi_phy.c 2011-04-14 08:35:55.387770007 -0700
@@ -739,7 +739,7 @@ static const char *efx_mcdi_phy_test_nam
return NULL;
}
-struct efx_phy_operations efx_mcdi_phy_ops = {
+const struct efx_phy_operations efx_mcdi_phy_ops = {
.probe = efx_mcdi_phy_probe,
.init = efx_port_dummy_op_int,
.reconfigure = efx_mcdi_phy_reconfigure,
--- a/drivers/net/sfc/net_driver.h 2011-04-14 08:34:34.814856688 -0700
+++ b/drivers/net/sfc/net_driver.h 2011-04-14 08:40:03.118873109 -0700
@@ -773,10 +773,10 @@ struct efx_nic {
struct efx_buffer stats_buffer;
- struct efx_mac_operations *mac_op;
+ const struct efx_mac_operations *mac_op;
unsigned int phy_type;
- struct efx_phy_operations *phy_op;
+ const struct efx_phy_operations *phy_op;
void *phy_data;
struct mdio_if_info mdio;
unsigned int mdio_bus;
@@ -897,7 +897,7 @@ struct efx_nic_type {
void (*resume_wol)(struct efx_nic *efx);
int (*test_registers)(struct efx_nic *efx);
int (*test_nvram)(struct efx_nic *efx);
- struct efx_mac_operations *default_mac_ops;
+ const struct efx_mac_operations *default_mac_ops;
int revision;
unsigned int mem_map_size;
--- a/drivers/net/sfc/phy.h 2011-04-14 08:34:45.574982389 -0700
+++ b/drivers/net/sfc/phy.h 2011-04-14 08:35:08.507246412 -0700
@@ -13,14 +13,14 @@
/****************************************************************************
* 10Xpress (SFX7101) PHY
*/
-extern struct efx_phy_operations falcon_sfx7101_phy_ops;
+extern const struct efx_phy_operations falcon_sfx7101_phy_ops;
extern void tenxpress_set_id_led(struct efx_nic *efx, enum efx_led_mode mode);
/****************************************************************************
* AMCC/Quake QT202x PHYs
*/
-extern struct efx_phy_operations falcon_qt202x_phy_ops;
+extern const struct efx_phy_operations falcon_qt202x_phy_ops;
/* These PHYs provide various H/W control states for LEDs */
#define QUAKE_LED_LINK_INVAL (0)
@@ -39,7 +39,7 @@ extern void falcon_qt202x_set_led(struct
/****************************************************************************
* Transwitch CX4 retimer
*/
-extern struct efx_phy_operations falcon_txc_phy_ops;
+extern const struct efx_phy_operations falcon_txc_phy_ops;
#define TXC_GPIO_DIR_INPUT 0
#define TXC_GPIO_DIR_OUTPUT 1
@@ -50,7 +50,7 @@ extern void falcon_txc_set_gpio_val(stru
/****************************************************************************
* Siena managed PHYs
*/
-extern struct efx_phy_operations efx_mcdi_phy_ops;
+extern const struct efx_phy_operations efx_mcdi_phy_ops;
extern int efx_mcdi_mdio_read(struct efx_nic *efx, unsigned int bus,
unsigned int prtad, unsigned int devad,
--- a/drivers/net/sfc/qt202x_phy.c 2011-04-14 08:35:21.647395047 -0700
+++ b/drivers/net/sfc/qt202x_phy.c 2011-04-14 08:35:25.715440799 -0700
@@ -449,7 +449,7 @@ static void qt202x_phy_remove(struct efx
efx->phy_data = NULL;
}
-struct efx_phy_operations falcon_qt202x_phy_ops = {
+const struct efx_phy_operations falcon_qt202x_phy_ops = {
.probe = qt202x_phy_probe,
.init = qt202x_phy_init,
.reconfigure = qt202x_phy_reconfigure,
--- a/drivers/net/sfc/tenxpress.c 2011-04-14 08:35:29.783486390 -0700
+++ b/drivers/net/sfc/tenxpress.c 2011-04-14 08:35:54.967764761 -0700
@@ -478,7 +478,7 @@ static void sfx7101_set_npage_adv(struct
advertising & ADVERTISED_10000baseT_Full);
}
-struct efx_phy_operations falcon_sfx7101_phy_ops = {
+const struct efx_phy_operations falcon_sfx7101_phy_ops = {
.probe = tenxpress_phy_probe,
.init = tenxpress_phy_init,
.reconfigure = tenxpress_phy_reconfigure,
--- a/drivers/net/sfc/txc43128_phy.c 2011-04-14 08:35:48.539694644 -0700
+++ b/drivers/net/sfc/txc43128_phy.c 2011-04-14 08:35:52.619739671 -0700
@@ -545,7 +545,7 @@ static void txc43128_get_settings(struct
mdio45_ethtool_gset(&efx->mdio, ecmd);
}
-struct efx_phy_operations falcon_txc_phy_ops = {
+const struct efx_phy_operations falcon_txc_phy_ops = {
.probe = txc43128_phy_probe,
.init = txc43128_phy_init,
.reconfigure = txc43128_phy_reconfigure,
--- a/drivers/net/sfc/falcon_xmac.c 2011-04-14 08:38:51.094018275 -0700
+++ b/drivers/net/sfc/falcon_xmac.c 2011-04-14 08:38:57.022090260 -0700
@@ -362,7 +362,7 @@ void falcon_poll_xmac(struct efx_nic *ef
falcon_ack_status_intr(efx);
}
-struct efx_mac_operations falcon_xmac_operations = {
+const struct efx_mac_operations falcon_xmac_operations = {
.reconfigure = falcon_reconfigure_xmac,
.update_stats = falcon_update_stats_xmac,
.check_fault = falcon_xmac_check_fault,
--- a/drivers/net/sfc/mac.h 2011-04-14 08:39:27.806461103 -0700
+++ b/drivers/net/sfc/mac.h 2011-04-14 08:39:36.686565988 -0700
@@ -13,8 +13,8 @@
#include "net_driver.h"
-extern struct efx_mac_operations falcon_xmac_operations;
-extern struct efx_mac_operations efx_mcdi_mac_operations;
+extern const struct efx_mac_operations falcon_xmac_operations;
+extern const struct efx_mac_operations efx_mcdi_mac_operations;
extern int efx_mcdi_mac_stats(struct efx_nic *efx, dma_addr_t dma_addr,
u32 dma_len, int enable, int clear);
--- a/drivers/net/sfc/mcdi_mac.c 2011-04-14 08:39:00.734136111 -0700
+++ b/drivers/net/sfc/mcdi_mac.c 2011-04-14 08:39:06.630207635 -0700
@@ -138,7 +138,7 @@ static bool efx_mcdi_mac_check_fault(str
}
-struct efx_mac_operations efx_mcdi_mac_operations = {
+const struct efx_mac_operations efx_mcdi_mac_operations = {
.reconfigure = efx_mcdi_mac_reconfigure,
.update_stats = efx_port_dummy_op_void,
.check_fault = efx_mcdi_mac_check_fault,
--- a/drivers/net/sfc/falcon.c 2011-04-14 08:43:16.856958923 -0700
+++ b/drivers/net/sfc/falcon.c 2011-04-14 08:43:26.809060907 -0700
@@ -1703,7 +1703,7 @@ static int falcon_set_wol(struct efx_nic
**************************************************************************
*/
-struct efx_nic_type falcon_a1_nic_type = {
+const struct efx_nic_type falcon_a1_nic_type = {
.probe = falcon_probe_nic,
.remove = falcon_remove_nic,
.init = falcon_init_nic,
@@ -1744,7 +1744,7 @@ struct efx_nic_type falcon_a1_nic_type =
.reset_world_flags = ETH_RESET_IRQ,
};
-struct efx_nic_type falcon_b0_nic_type = {
+const struct efx_nic_type falcon_b0_nic_type = {
.probe = falcon_probe_nic,
.remove = falcon_remove_nic,
.init = falcon_init_nic,
--- a/drivers/net/sfc/nic.h 2011-04-14 08:43:37.417167767 -0700
+++ b/drivers/net/sfc/nic.h 2011-04-14 08:43:50.801302635 -0700
@@ -150,9 +150,9 @@ struct siena_nic_data {
int wol_filter_id;
};
-extern struct efx_nic_type falcon_a1_nic_type;
-extern struct efx_nic_type falcon_b0_nic_type;
-extern struct efx_nic_type siena_a0_nic_type;
+extern const struct efx_nic_type falcon_a1_nic_type;
+extern const struct efx_nic_type falcon_b0_nic_type;
+extern const struct efx_nic_type siena_a0_nic_type;
/**************************************************************************
*
--- a/drivers/net/sfc/siena.c 2011-04-14 08:43:55.377348789 -0700
+++ b/drivers/net/sfc/siena.c 2011-04-14 08:44:24.561640141 -0700
@@ -581,7 +581,7 @@ static void siena_init_wol(struct efx_ni
**************************************************************************
*/
-struct efx_nic_type siena_a0_nic_type = {
+const struct efx_nic_type siena_a0_nic_type = {
.probe = siena_probe_nic,
.remove = siena_remove_nic,
.init = siena_init_nic,
--
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