Thread (10 messages) 10 messages, 5 authors, 2024-07-02
STALE752d

[PATCH net-next 1/3] net: Remove task_struct::bpf_net_context init on fork.

From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: 2024-06-28 10:30:26
Also in: bpf
Subsystem: exec & binfmt api, elf, memory management - core, scheduler, the rest · Maintainers: Kees Cook, Andrew Morton, David Hildenbrand, Ingo Molnar, Peter Zijlstra, Juri Lelli, Vincent Guittot, Linus Torvalds

There is no clone() invocation within a bpf_net_ctx_…() block. Therefore
the task_struct::bpf_net_context has always to be NULL and an explicit
initialisation is not required.

Remove the NULL assignment in the clone() path.

Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
 kernel/fork.c | 1 -
 1 file changed, 1 deletion(-)
diff --git a/kernel/fork.c b/kernel/fork.c
index f314bdd7e6108..99076dbe27d83 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -2355,7 +2355,6 @@ __latent_entropy struct task_struct *copy_process(
 	RCU_INIT_POINTER(p->bpf_storage, NULL);
 	p->bpf_ctx = NULL;
 #endif
-	p->bpf_net_context =  NULL;
 
 	/* Perform scheduler related setup. Assign this task to a CPU. */
 	retval = sched_fork(clone_flags, p);
-- 
2.45.2
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