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Date: Thu, 14 Nov 2019 21:07:13 -0800
From: Kees Cook <keescook@...omium.org>
To: "David S. Miller" <davem@...emloft.net>
Cc: Kees Cook <keescook@...omium.org>,
Ariel Elior <aelior@...vell.com>,
Sudarsana Kalluru <skalluru@...vell.com>,
GR-everest-linux-l2@...vell.com,
Sami Tolvanen <samitolvanen@...gle.com>,
netdev@...r.kernel.org,
kernel-hardening@...ts.openwall.com,
linux-kernel@...r.kernel.org
Subject: [PATCH 3/5] bnx2x: Remove config_init_t function casts
No callers of .config_init check return values. Remove the casting and
change all callbacks to have the correct function prototype.
Signed-off-by: Kees Cook <keescook@...omium.org>
---
.../net/ethernet/broadcom/bnx2x/bnx2x_link.c | 105 ++++++++----------
.../net/ethernet/broadcom/bnx2x/bnx2x_link.h | 4 +-
2 files changed, 48 insertions(+), 61 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
index a124f1e0819f..2bc6408ce00d 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
@@ -7364,9 +7364,9 @@ static void bnx2x_8073_specific_func(struct bnx2x_phy *phy,
}
}
-static int bnx2x_8073_config_init(struct bnx2x_phy *phy,
- struct link_params *params,
- struct link_vars *vars)
+static void bnx2x_8073_config_init(struct bnx2x_phy *phy,
+ struct link_params *params,
+ struct link_vars *vars)
{
struct bnx2x *bp = params->bp;
u16 val = 0, tmp1;
@@ -7427,7 +7427,7 @@ static int bnx2x_8073_config_init(struct bnx2x_phy *phy,
if (params->loopback_mode == LOOPBACK_EXT) {
bnx2x_807x_force_10G(bp, phy);
DP(NETIF_MSG_LINK, "Forced speed 10G on 807X\n");
- return 0;
+ return;
} else {
bnx2x_cl45_write(bp, phy,
MDIO_PMA_DEVAD, MDIO_PMA_REG_BCM_CTRL, 0x0002);
@@ -7509,7 +7509,6 @@ static int bnx2x_8073_config_init(struct bnx2x_phy *phy,
bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, 0x1200);
DP(NETIF_MSG_LINK, "807x Autoneg Restart: Advertise 1G=%x, 10G=%x\n",
((val & (1<<5)) > 0), ((val & (1<<7)) > 0));
- return 0;
}
static u8 bnx2x_8073_read_status(struct bnx2x_phy *phy,
@@ -7676,9 +7675,9 @@ static void bnx2x_8073_link_reset(struct bnx2x_phy *phy,
/******************************************************************/
/* BCM8705 PHY SECTION */
/******************************************************************/
-static int bnx2x_8705_config_init(struct bnx2x_phy *phy,
- struct link_params *params,
- struct link_vars *vars)
+static void bnx2x_8705_config_init(struct bnx2x_phy *phy,
+ struct link_params *params,
+ struct link_vars *vars)
{
struct bnx2x *bp = params->bp;
DP(NETIF_MSG_LINK, "init 8705\n");
@@ -7700,7 +7699,6 @@ static int bnx2x_8705_config_init(struct bnx2x_phy *phy,
MDIO_WIS_DEVAD, MDIO_WIS_REG_LASI_CNTL, 0x1);
/* BCM8705 doesn't have microcode, hence the 0 */
bnx2x_save_spirom_version(bp, params->port, params->shmem_base, 0);
- return 0;
}
static u8 bnx2x_8705_read_status(struct bnx2x_phy *phy,
@@ -8887,9 +8885,9 @@ static u8 bnx2x_8706_8726_read_status(struct bnx2x_phy *phy,
/******************************************************************/
/* BCM8706 PHY SECTION */
/******************************************************************/
-static u8 bnx2x_8706_config_init(struct bnx2x_phy *phy,
- struct link_params *params,
- struct link_vars *vars)
+static void bnx2x_8706_config_init(struct bnx2x_phy *phy,
+ struct link_params *params,
+ struct link_vars *vars)
{
u32 tx_en_mode;
u16 cnt, val, tmp1;
@@ -8989,8 +8987,6 @@ static u8 bnx2x_8706_config_init(struct bnx2x_phy *phy,
bnx2x_cl45_write(bp, phy,
MDIO_PMA_DEVAD, MDIO_PMA_REG_DIGITAL_CTRL, tmp1);
}
-
- return 0;
}
static u8 bnx2x_8706_read_status(struct bnx2x_phy *phy,
@@ -9070,9 +9066,9 @@ static u8 bnx2x_8726_read_status(struct bnx2x_phy *phy,
}
-static int bnx2x_8726_config_init(struct bnx2x_phy *phy,
- struct link_params *params,
- struct link_vars *vars)
+static void bnx2x_8726_config_init(struct bnx2x_phy *phy,
+ struct link_params *params,
+ struct link_vars *vars)
{
struct bnx2x *bp = params->bp;
DP(NETIF_MSG_LINK, "Initializing BCM8726\n");
@@ -9150,9 +9146,6 @@ static int bnx2x_8726_config_init(struct bnx2x_phy *phy,
MDIO_PMA_REG_8726_TX_CTRL2,
phy->tx_preemphasis[1]);
}
-
- return 0;
-
}
static void bnx2x_8726_link_reset(struct bnx2x_phy *phy,
@@ -9288,9 +9281,9 @@ static void bnx2x_8727_config_speed(struct bnx2x_phy *phy,
}
}
-static int bnx2x_8727_config_init(struct bnx2x_phy *phy,
- struct link_params *params,
- struct link_vars *vars)
+static void bnx2x_8727_config_init(struct bnx2x_phy *phy,
+ struct link_params *params,
+ struct link_vars *vars)
{
u32 tx_en_mode;
u16 tmp1, mod_abs, tmp2;
@@ -9370,8 +9363,6 @@ static int bnx2x_8727_config_init(struct bnx2x_phy *phy,
MDIO_PMA_DEVAD, MDIO_PMA_REG_PHY_IDENTIFIER,
(tmp2 & 0x7fff));
}
-
- return 0;
}
static void bnx2x_8727_handle_mod_abs(struct bnx2x_phy *phy,
@@ -9946,9 +9937,9 @@ static int bnx2x_848xx_cmn_config_init(struct bnx2x_phy *phy,
return 0;
}
-static int bnx2x_8481_config_init(struct bnx2x_phy *phy,
- struct link_params *params,
- struct link_vars *vars)
+static void bnx2x_8481_config_init(struct bnx2x_phy *phy,
+ struct link_params *params,
+ struct link_vars *vars)
{
struct bnx2x *bp = params->bp;
/* Restore normal power mode*/
@@ -9960,7 +9951,7 @@ static int bnx2x_8481_config_init(struct bnx2x_phy *phy,
bnx2x_wait_reset_complete(bp, phy, params);
bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 1<<15);
- return bnx2x_848xx_cmn_config_init(phy, params, vars);
+ bnx2x_848xx_cmn_config_init(phy, params, vars);
}
#define PHY848xx_CMDHDLR_WAIT 300
@@ -10283,9 +10274,9 @@ static int bnx2x_8483x_enable_eee(struct bnx2x_phy *phy,
}
#define PHY84833_CONSTANT_LATENCY 1193
-static int bnx2x_848x3_config_init(struct bnx2x_phy *phy,
- struct link_params *params,
- struct link_vars *vars)
+static void bnx2x_848x3_config_init(struct bnx2x_phy *phy,
+ struct link_params *params,
+ struct link_vars *vars)
{
struct bnx2x *bp = params->bp;
u8 port, initialize = 1;
@@ -10430,7 +10421,7 @@ static int bnx2x_848x3_config_init(struct bnx2x_phy *phy,
if (rc) {
DP(NETIF_MSG_LINK, "Failed to configure EEE timers\n");
bnx2x_8483x_disable_eee(phy, params, vars);
- return rc;
+ return;
}
if ((phy->req_duplex == DUPLEX_FULL) &&
@@ -10442,7 +10433,7 @@ static int bnx2x_848x3_config_init(struct bnx2x_phy *phy,
rc = bnx2x_8483x_disable_eee(phy, params, vars);
if (rc) {
DP(NETIF_MSG_LINK, "Failed to set EEE advertisement\n");
- return rc;
+ return;
}
} else {
vars->eee_status &= ~SHMEM_EEE_SUPPORTED_MASK;
@@ -10481,7 +10472,6 @@ static int bnx2x_848x3_config_init(struct bnx2x_phy *phy,
MDIO_84833_TOP_CFG_XGPHY_STRAP1,
(u16)~MDIO_84833_SUPER_ISOLATE);
}
- return rc;
}
static u8 bnx2x_848xx_read_status(struct bnx2x_phy *phy,
@@ -11038,9 +11028,9 @@ static void bnx2x_54618se_specific_func(struct bnx2x_phy *phy,
}
}
-static int bnx2x_54618se_config_init(struct bnx2x_phy *phy,
- struct link_params *params,
- struct link_vars *vars)
+static void bnx2x_54618se_config_init(struct bnx2x_phy *phy,
+ struct link_params *params,
+ struct link_vars *vars)
{
struct bnx2x *bp = params->bp;
u8 port;
@@ -11240,8 +11230,6 @@ static int bnx2x_54618se_config_init(struct bnx2x_phy *phy,
bnx2x_cl22_write(bp, phy,
MDIO_PMA_REG_CTRL, autoneg_val);
-
- return 0;
}
@@ -11465,9 +11453,9 @@ static void bnx2x_7101_config_loopback(struct bnx2x_phy *phy,
MDIO_XS_DEVAD, MDIO_XS_SFX7101_XGXS_TEST1, 0x100);
}
-static int bnx2x_7101_config_init(struct bnx2x_phy *phy,
- struct link_params *params,
- struct link_vars *vars)
+static void bnx2x_7101_config_init(struct bnx2x_phy *phy,
+ struct link_params *params,
+ struct link_vars *vars)
{
u16 fw_ver1, fw_ver2, val;
struct bnx2x *bp = params->bp;
@@ -11502,7 +11490,6 @@ static int bnx2x_7101_config_init(struct bnx2x_phy *phy,
MDIO_PMA_DEVAD, MDIO_PMA_REG_7101_VER2, &fw_ver2);
bnx2x_save_spirom_version(bp, params->port,
(u32)(fw_ver1<<16 | fw_ver2), phy->ver_addr);
- return 0;
}
static u8 bnx2x_7101_read_status(struct bnx2x_phy *phy,
@@ -11671,7 +11658,7 @@ static const struct bnx2x_phy phy_serdes = {
.speed_cap_mask = 0,
.req_duplex = 0,
.rsrv = 0,
- .config_init = (config_init_t)bnx2x_xgxs_config_init,
+ .config_init = bnx2x_xgxs_config_init,
.read_status = bnx2x_link_settings_status,
.link_reset = bnx2x_int_link_reset,
.config_loopback = NULL,
@@ -11707,7 +11694,7 @@ static const struct bnx2x_phy phy_xgxs = {
.speed_cap_mask = 0,
.req_duplex = 0,
.rsrv = 0,
- .config_init = (config_init_t)bnx2x_xgxs_config_init,
+ .config_init = bnx2x_xgxs_config_init,
.read_status = bnx2x_link_settings_status,
.link_reset = bnx2x_int_link_reset,
.config_loopback = bnx2x_set_xgxs_loopback,
@@ -11745,7 +11732,7 @@ static const struct bnx2x_phy phy_warpcore = {
.speed_cap_mask = 0,
/* req_duplex = */0,
/* rsrv = */0,
- .config_init = (config_init_t)bnx2x_warpcore_config_init,
+ .config_init = bnx2x_warpcore_config_init,
.read_status = bnx2x_warpcore_read_status,
.link_reset = bnx2x_warpcore_link_reset,
.config_loopback = bnx2x_set_warpcore_loopback,
@@ -11776,7 +11763,7 @@ static const struct bnx2x_phy phy_7101 = {
.speed_cap_mask = 0,
.req_duplex = 0,
.rsrv = 0,
- .config_init = (config_init_t)bnx2x_7101_config_init,
+ .config_init = bnx2x_7101_config_init,
.read_status = bnx2x_7101_read_status,
.link_reset = bnx2x_common_ext_link_reset,
.config_loopback = bnx2x_7101_config_loopback,
@@ -11807,7 +11794,7 @@ static const struct bnx2x_phy phy_8073 = {
.speed_cap_mask = 0,
.req_duplex = 0,
.rsrv = 0,
- .config_init = (config_init_t)bnx2x_8073_config_init,
+ .config_init = bnx2x_8073_config_init,
.read_status = bnx2x_8073_read_status,
.link_reset = bnx2x_8073_link_reset,
.config_loopback = NULL,
@@ -11835,7 +11822,7 @@ static const struct bnx2x_phy phy_8705 = {
.speed_cap_mask = 0,
.req_duplex = 0,
.rsrv = 0,
- .config_init = (config_init_t)bnx2x_8705_config_init,
+ .config_init = bnx2x_8705_config_init,
.read_status = bnx2x_8705_read_status,
.link_reset = bnx2x_common_ext_link_reset,
.config_loopback = NULL,
@@ -11864,7 +11851,7 @@ static const struct bnx2x_phy phy_8706 = {
.speed_cap_mask = 0,
.req_duplex = 0,
.rsrv = 0,
- .config_init = (config_init_t)bnx2x_8706_config_init,
+ .config_init = bnx2x_8706_config_init,
.read_status = bnx2x_8706_read_status,
.link_reset = bnx2x_common_ext_link_reset,
.config_loopback = NULL,
@@ -11896,7 +11883,7 @@ static const struct bnx2x_phy phy_8726 = {
.speed_cap_mask = 0,
.req_duplex = 0,
.rsrv = 0,
- .config_init = (config_init_t)bnx2x_8726_config_init,
+ .config_init = bnx2x_8726_config_init,
.read_status = bnx2x_8726_read_status,
.link_reset = bnx2x_8726_link_reset,
.config_loopback = bnx2x_8726_config_loopback,
@@ -11927,7 +11914,7 @@ static const struct bnx2x_phy phy_8727 = {
.speed_cap_mask = 0,
.req_duplex = 0,
.rsrv = 0,
- .config_init = (config_init_t)bnx2x_8727_config_init,
+ .config_init = bnx2x_8727_config_init,
.read_status = bnx2x_8727_read_status,
.link_reset = bnx2x_8727_link_reset,
.config_loopback = NULL,
@@ -11962,7 +11949,7 @@ static const struct bnx2x_phy phy_8481 = {
.speed_cap_mask = 0,
.req_duplex = 0,
.rsrv = 0,
- .config_init = (config_init_t)bnx2x_8481_config_init,
+ .config_init = bnx2x_8481_config_init,
.read_status = bnx2x_848xx_read_status,
.link_reset = bnx2x_8481_link_reset,
.config_loopback = NULL,
@@ -11999,7 +11986,7 @@ static const struct bnx2x_phy phy_84823 = {
.speed_cap_mask = 0,
.req_duplex = 0,
.rsrv = 0,
- .config_init = (config_init_t)bnx2x_848x3_config_init,
+ .config_init = bnx2x_848x3_config_init,
.read_status = bnx2x_848xx_read_status,
.link_reset = bnx2x_848x3_link_reset,
.config_loopback = NULL,
@@ -12034,7 +12021,7 @@ static const struct bnx2x_phy phy_84833 = {
.speed_cap_mask = 0,
.req_duplex = 0,
.rsrv = 0,
- .config_init = (config_init_t)bnx2x_848x3_config_init,
+ .config_init = bnx2x_848x3_config_init,
.read_status = bnx2x_848xx_read_status,
.link_reset = bnx2x_848x3_link_reset,
.config_loopback = NULL,
@@ -12068,7 +12055,7 @@ static const struct bnx2x_phy phy_84834 = {
.speed_cap_mask = 0,
.req_duplex = 0,
.rsrv = 0,
- .config_init = (config_init_t)bnx2x_848x3_config_init,
+ .config_init = bnx2x_848x3_config_init,
.read_status = bnx2x_848xx_read_status,
.link_reset = bnx2x_848x3_link_reset,
.config_loopback = NULL,
@@ -12102,7 +12089,7 @@ static const struct bnx2x_phy phy_84858 = {
.speed_cap_mask = 0,
.req_duplex = 0,
.rsrv = 0,
- .config_init = (config_init_t)bnx2x_848x3_config_init,
+ .config_init = bnx2x_848x3_config_init,
.read_status = bnx2x_848xx_read_status,
.link_reset = bnx2x_848x3_link_reset,
.config_loopback = NULL,
@@ -12136,7 +12123,7 @@ static const struct bnx2x_phy phy_54618se = {
.speed_cap_mask = 0,
/* req_duplex = */0,
/* rsrv = */0,
- .config_init = (config_init_t)bnx2x_54618se_config_init,
+ .config_init = bnx2x_54618se_config_init,
.read_status = bnx2x_54618se_read_status,
.link_reset = bnx2x_54618se_link_reset,
.config_loopback = bnx2x_54618se_config_loopback,
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h
index 7115f5025664..d31d15c78a17 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.h
@@ -127,8 +127,8 @@ struct link_vars;
struct link_params;
struct bnx2x_phy;
-typedef u8 (*config_init_t)(struct bnx2x_phy *phy, struct link_params *params,
- struct link_vars *vars);
+typedef void (*config_init_t)(struct bnx2x_phy *phy, struct link_params *params,
+ struct link_vars *vars);
typedef u8 (*read_status_t)(struct bnx2x_phy *phy, struct link_params *params,
struct link_vars *vars);
typedef void (*link_reset_t)(struct bnx2x_phy *phy,
--
2.17.1
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