netdev - [PATCH 5/5] bnx2x: Remove hw_reset

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20191115050715.6247-6-keescook@chromium.org>
Date:   Thu, 14 Nov 2019 21:07:15 -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 5/5] bnx2x: Remove hw_reset_t function casts

All .rw_reset callbacks except bnx2x_84833_hw_reset_phy() use a
void return type. No callers of .hw_reset check a return value and
bnx2x_84833_hw_reset_phy() unconditionally returns 0. Remove all
hw_reset_t casts and fix the return type to void.

Signed-off-by: Kees Cook <keescook@...omium.org>
---
 .../net/ethernet/broadcom/bnx2x/bnx2x_link.c  | 20 +++++++++----------
 1 file changed, 9 insertions(+), 11 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
index 7dd35aa75925..9638d65d8261 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
@@ -10201,8 +10201,8 @@ static u8 bnx2x_84833_get_reset_gpios(struct bnx2x *bp,
 	return reset_gpios;
 }
 
-static int bnx2x_84833_hw_reset_phy(struct bnx2x_phy *phy,
-				struct link_params *params)
+static void bnx2x_84833_hw_reset_phy(struct bnx2x_phy *phy,
+				     struct link_params *params)
 {
 	struct bnx2x *bp = params->bp;
 	u8 reset_gpios;
@@ -10230,8 +10230,6 @@ static int bnx2x_84833_hw_reset_phy(struct bnx2x_phy *phy,
 	udelay(10);
 	DP(NETIF_MSG_LINK, "84833 hw reset on pin values 0x%x\n",
 		reset_gpios);
-
-	return 0;
 }
 
 static int bnx2x_8483x_disable_eee(struct bnx2x_phy *phy,
@@ -11737,7 +11735,7 @@ static const struct bnx2x_phy phy_warpcore = {
 	.link_reset	= bnx2x_warpcore_link_reset,
 	.config_loopback = bnx2x_set_warpcore_loopback,
 	.format_fw_ver	= NULL,
-	.hw_reset	= (hw_reset_t)bnx2x_warpcore_hw_reset,
+	.hw_reset	= bnx2x_warpcore_hw_reset,
 	.set_link_led	= NULL,
 	.phy_specific_func = NULL
 };
@@ -11768,7 +11766,7 @@ static const struct bnx2x_phy phy_7101 = {
 	.link_reset	= bnx2x_common_ext_link_reset,
 	.config_loopback = bnx2x_7101_config_loopback,
 	.format_fw_ver	= bnx2x_7101_format_ver,
-	.hw_reset	= (hw_reset_t)bnx2x_7101_hw_reset,
+	.hw_reset	= bnx2x_7101_hw_reset,
 	.set_link_led	= bnx2x_7101_set_link_led,
 	.phy_specific_func = NULL
 };
@@ -11919,7 +11917,7 @@ static const struct bnx2x_phy phy_8727 = {
 	.link_reset	= bnx2x_8727_link_reset,
 	.config_loopback = NULL,
 	.format_fw_ver	= bnx2x_format_ver,
-	.hw_reset	= (hw_reset_t)bnx2x_8727_hw_reset,
+	.hw_reset	= bnx2x_8727_hw_reset,
 	.set_link_led	= bnx2x_8727_set_link_led,
 	.phy_specific_func = bnx2x_8727_specific_func
 };
@@ -11954,7 +11952,7 @@ static const struct bnx2x_phy phy_8481 = {
 	.link_reset	= bnx2x_8481_link_reset,
 	.config_loopback = NULL,
 	.format_fw_ver	= bnx2x_848xx_format_ver,
-	.hw_reset	= (hw_reset_t)bnx2x_8481_hw_reset,
+	.hw_reset	= bnx2x_8481_hw_reset,
 	.set_link_led	= bnx2x_848xx_set_link_led,
 	.phy_specific_func = NULL
 };
@@ -12026,7 +12024,7 @@ static const struct bnx2x_phy phy_84833 = {
 	.link_reset	= bnx2x_848x3_link_reset,
 	.config_loopback = NULL,
 	.format_fw_ver	= bnx2x_848xx_format_ver,
-	.hw_reset	= (hw_reset_t)bnx2x_84833_hw_reset_phy,
+	.hw_reset	= bnx2x_84833_hw_reset_phy,
 	.set_link_led	= bnx2x_848xx_set_link_led,
 	.phy_specific_func = bnx2x_848xx_specific_func
 };
@@ -12060,7 +12058,7 @@ static const struct bnx2x_phy phy_84834 = {
 	.link_reset	= bnx2x_848x3_link_reset,
 	.config_loopback = NULL,
 	.format_fw_ver	= bnx2x_848xx_format_ver,
-	.hw_reset	= (hw_reset_t)bnx2x_84833_hw_reset_phy,
+	.hw_reset	= bnx2x_84833_hw_reset_phy,
 	.set_link_led	= bnx2x_848xx_set_link_led,
 	.phy_specific_func = bnx2x_848xx_specific_func
 };
@@ -12094,7 +12092,7 @@ static const struct bnx2x_phy phy_84858 = {
 	.link_reset	= bnx2x_848x3_link_reset,
 	.config_loopback = NULL,
 	.format_fw_ver	= bnx2x_8485x_format_ver,
-	.hw_reset	= (hw_reset_t)bnx2x_84833_hw_reset_phy,
+	.hw_reset	= bnx2x_84833_hw_reset_phy,
 	.set_link_led	= bnx2x_848xx_set_link_led,
 	.phy_specific_func = bnx2x_848xx_specific_func
 };
-- 
2.17.1