diff mbox series

[net-next] net: dev: Simplify the conditional of backlog lock functions

Message ID 20240609072022.2997-1-yajun.deng@linux.dev (mailing list archive)
State Rejected
Delegated to: Netdev Maintainers
Headers show
Series [net-next] net: dev: Simplify the conditional of backlog lock functions | expand

Checks

Context Check Description
netdev/series_format success Single patches do not need cover letters
netdev/tree_selection success Clearly marked for net-next
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 871 this patch: 871
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers success CCed 4 of 4 maintainers
netdev/build_clang success Errors and warnings before: 868 this patch: 868
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 875 this patch: 875
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 32 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 79 this patch: 79
netdev/source_inline success Was 0 now: 0

Commit Message

Yajun Deng June 9, 2024, 7:20 a.m. UTC 
The use_backlog_threads() contains the conditional of PREEMPT_RT, so we
don't need to add PREEMPT_RT in the backlog lock.

Remove the conditional of PREEMPT_RT in the backlog lock.

Signed-off-by: Yajun Deng <yajun.deng@linux.dev>
---
 net/core/dev.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

Comments

Sebastian Andrzej Siewior June 10, 2024, 6:26 a.m. UTC | #1 
On 2024-06-09 15:20:22 [+0800], Yajun Deng wrote:
> The use_backlog_threads() contains the conditional of PREEMPT_RT, so we
> don't need to add PREEMPT_RT in the backlog lock.
> 
> Remove the conditional of PREEMPT_RT in the backlog lock.

This is part of
	https://lore.kernel.org/all/20240607070427.1379327-10-bigeasy@linutronix.de/

> Signed-off-by: Yajun Deng <yajun.deng@linux.dev>

Sebastian
diff mbox series

Patch

diff --git a/net/core/dev.c b/net/core/dev.c
index e62698c7a0e6..db6b6fc997e6 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -229,7 +229,7 @@  static inline void backlog_lock_irq_save(struct softnet_data *sd,
 {
 	if (IS_ENABLED(CONFIG_RPS) || use_backlog_threads())
 		spin_lock_irqsave(&sd->input_pkt_queue.lock, *flags);
-	else if (!IS_ENABLED(CONFIG_PREEMPT_RT))
+	else
 		local_irq_save(*flags);
 }
 
@@ -237,7 +237,7 @@  static inline void backlog_lock_irq_disable(struct softnet_data *sd)
 {
 	if (IS_ENABLED(CONFIG_RPS) || use_backlog_threads())
 		spin_lock_irq(&sd->input_pkt_queue.lock);
-	else if (!IS_ENABLED(CONFIG_PREEMPT_RT))
+	else
 		local_irq_disable();
 }
 
@@ -246,7 +246,7 @@  static inline void backlog_unlock_irq_restore(struct softnet_data *sd,
 {
 	if (IS_ENABLED(CONFIG_RPS) || use_backlog_threads())
 		spin_unlock_irqrestore(&sd->input_pkt_queue.lock, *flags);
-	else if (!IS_ENABLED(CONFIG_PREEMPT_RT))
+	else
 		local_irq_restore(*flags);
 }
 
@@ -254,7 +254,7 @@  static inline void backlog_unlock_irq_enable(struct softnet_data *sd)
 {
 	if (IS_ENABLED(CONFIG_RPS) || use_backlog_threads())
 		spin_unlock_irq(&sd->input_pkt_queue.lock);
-	else if (!IS_ENABLED(CONFIG_PREEMPT_RT))
+	else
 		local_irq_enable();
 }