aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorMichael Zhivich <mzhivich@akamai.com>2019-04-08 10:48:46 -0400
committerDavid S. Miller <davem@davemloft.net>2019-04-08 16:30:43 -0700
commitcaf2c5205d82ff0d758096a69a7e0466c38d4dbb (patch)
tree3637c18af6bfa796964d45c512bcd87ec14606ee
parentafe64245af9f58267e7fa8fb76ad5650ee7ec25f (diff)
download96b-common-caf2c5205d82ff0d758096a69a7e0466c38d4dbb.tar.gz
broadcom: tg3: fix use of SPEED_UNKNOWN ethtool constant
tg3 driver uses u16 to store SPEED_UKNOWN ethtool constant, which is defined as -1, resulting in value truncation and thus incorrect test results against SPEED_UNKNOWN. For example, the following test will print "False": u16 speed = SPEED_UNKNOWN; if (speed == SPEED_UNKNOWN) printf("True"); else printf("False"); Change storage of speed to use u32 to avoid this issue. Signed-off-by: Michael Zhivich <mzhivich@akamai.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/ethernet/broadcom/tg3.c8
-rw-r--r--drivers/net/ethernet/broadcom/tg3.h4
2 files changed, 6 insertions, 6 deletions
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 328373e0578f..060a6f386104 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -4283,7 +4283,7 @@ static void tg3_power_down(struct tg3 *tp)
pci_set_power_state(tp->pdev, PCI_D3hot);
}
-static void tg3_aux_stat_to_speed_duplex(struct tg3 *tp, u32 val, u16 *speed, u8 *duplex)
+static void tg3_aux_stat_to_speed_duplex(struct tg3 *tp, u32 val, u32 *speed, u8 *duplex)
{
switch (val & MII_TG3_AUX_STAT_SPDMASK) {
case MII_TG3_AUX_STAT_10HALF:
@@ -4787,7 +4787,7 @@ static int tg3_setup_copper_phy(struct tg3 *tp, bool force_reset)
bool current_link_up;
u32 bmsr, val;
u32 lcl_adv, rmt_adv;
- u16 current_speed;
+ u32 current_speed;
u8 current_duplex;
int i, err;
@@ -5719,7 +5719,7 @@ out:
static int tg3_setup_fiber_phy(struct tg3 *tp, bool force_reset)
{
u32 orig_pause_cfg;
- u16 orig_active_speed;
+ u32 orig_active_speed;
u8 orig_active_duplex;
u32 mac_status;
bool current_link_up;
@@ -5823,7 +5823,7 @@ static int tg3_setup_fiber_mii_phy(struct tg3 *tp, bool force_reset)
{
int err = 0;
u32 bmsr, bmcr;
- u16 current_speed = SPEED_UNKNOWN;
+ u32 current_speed = SPEED_UNKNOWN;
u8 current_duplex = DUPLEX_UNKNOWN;
bool current_link_up = false;
u32 local_adv, remote_adv, sgsr;
diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h
index a772a33b685c..6953d0546acb 100644
--- a/drivers/net/ethernet/broadcom/tg3.h
+++ b/drivers/net/ethernet/broadcom/tg3.h
@@ -2873,7 +2873,7 @@ struct tg3_tx_ring_info {
struct tg3_link_config {
/* Describes what we're trying to get. */
u32 advertising;
- u16 speed;
+ u32 speed;
u8 duplex;
u8 autoneg;
u8 flowctrl;
@@ -2882,7 +2882,7 @@ struct tg3_link_config {
u8 active_flowctrl;
u8 active_duplex;
- u16 active_speed;
+ u32 active_speed;
u32 rmt_adv;
};