| Message ID | 20220306215753.3156276-11-bigeasy@linutronix.de (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | 67dbd6c0a2c427211244e344b85a55d6e82886bf |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | net: Convert user to netif_rx(), part 3. | expand |
| Context | Check | Description |
|---|---|---|
| netdev/tree_selection | success | Clearly marked for net-next |
| netdev/fixes_present | success | Fixes tag not required for -next series |
| netdev/subject_prefix | success | Link |
| netdev/cover_letter | success | Series has a cover letter |
| netdev/patch_count | success | Link |
| netdev/header_inline | success | No static functions without inline keyword in header files |
| netdev/build_32bit | success | Errors and warnings before: 0 this patch: 0 |
| netdev/cc_maintainers | success | CCed 6 of 6 maintainers |
| netdev/build_clang | success | Errors and warnings before: 0 this patch: 0 |
| netdev/module_param | success | Was 0 now: 0 |
| netdev/verify_signedoff | success | Signed-off-by tag matches author and committer |
| netdev/verify_fixes | success | No Fixes tag |
| netdev/build_allmodconfig_warn | success | Errors and warnings before: 0 this patch: 0 |
| netdev/checkpatch | success | total: 0 errors, 0 warnings, 0 checks, 16 lines checked |
| netdev/kdoc | success | Errors and warnings before: 0 this patch: 0 |
| netdev/source_inline | success | Was 0 now: 0 |
diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c index cbae1524a420f..ce3992383766d 100644 --- a/drivers/net/phy/micrel.c +++ b/drivers/net/phy/micrel.c @@ -2045,8 +2045,6 @@ static bool lan8814_match_rx_ts(struct kszphy_ptp_priv *ptp_priv, memset(shhwtstamps, 0, sizeof(*shhwtstamps)); shhwtstamps->hwtstamp = ktime_set(rx_ts->seconds, rx_ts->nsec); - netif_rx(skb); - list_del(&rx_ts->list); kfree(rx_ts); @@ -2055,6 +2053,8 @@ static bool lan8814_match_rx_ts(struct kszphy_ptp_priv *ptp_priv, } spin_unlock_irqrestore(&ptp_priv->rx_ts_lock, flags); + if (ret) + netif_rx(skb); return ret; }
lan8814_match_rx_ts() invokes netif_rx() with disables interrupts outside which will create a warning. Invoking netif_rx_ni() with disabled interrupts is wrong even without the recent rework because netif_rx_ni() would enable interrupts while processing the softirq. This in turn can lead to dead lock if an interrupts triggers and attempts to acquire kszphy_ptp_priv::rx_ts_lock. Move netif_rx() outside the IRQ-off section. Cc: Andrew Lunn <andrew@lunn.ch> Cc: Heiner Kallweit <hkallweit1@gmail.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Divya Koppera <Divya.Koppera@microchip.com> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> --- drivers/net/phy/micrel.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)