| Message ID | E1tVCRj-007Y3H-Hm@rmk-PC.armlinux.org.uk (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | net: stmmac: clean up and fix EEE implementation | expand |
On Tue, Jan 07, 2025 at 04:28:47PM +0000, Russell King (Oracle) wrote: > Since eee_timer is used to initialise priv->tx_lpi_timer, this also > should be unsigned to avoid a negative number being interpreted as a > very large positive number. Note that this makes the check for negative > numbers passed in as a module parameter redundant, and passing a > negative number will now produce a large delay rather than the > default. Since the default is used without an argument, passing a > negative number would be quite obscure. However, if users do, then > this will need to be revisited. > > Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Reviewed-by: Simon Horman <horms@kernel.org>
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index dbe5635398b3..96393e6feda0 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -111,8 +111,8 @@ static const u32 default_msg_level = (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_IFDOWN | NETIF_MSG_TIMER); #define STMMAC_DEFAULT_LPI_TIMER 1000 -static int eee_timer = STMMAC_DEFAULT_LPI_TIMER; -module_param(eee_timer, int, 0644); +static unsigned int eee_timer = STMMAC_DEFAULT_LPI_TIMER; +module_param(eee_timer, uint, 0644); MODULE_PARM_DESC(eee_timer, "LPI tx expiration time in msec"); #define STMMAC_LPI_T(x) (jiffies + usecs_to_jiffies(x)) @@ -194,8 +194,6 @@ static void stmmac_verify_args(void) flow_ctrl = FLOW_OFF; if (unlikely((pause < 0) || (pause > 0xffff))) pause = PAUSE_TIME; - if (eee_timer < 0) - eee_timer = STMMAC_DEFAULT_LPI_TIMER; } static void __stmmac_disable_all_queues(struct stmmac_priv *priv)
Since eee_timer is used to initialise priv->tx_lpi_timer, this also should be unsigned to avoid a negative number being interpreted as a very large positive number. Note that this makes the check for negative numbers passed in as a module parameter redundant, and passing a negative number will now produce a large delay rather than the default. Since the default is used without an argument, passing a negative number would be quite obscure. However, if users do, then this will need to be revisited. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> --- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)