[PATCH] dma-debug: fix debugfs initialization order

From: Anthony Iliopoulos
Date: Thu Jul 22 2021 - 05:21:28 EST


Due to link order, dma_debug_init is called before debugfs has a chance
to initialize (via debugfs_init which also happens in the core initcall
stage), so the directories for dma-debug are never created.

Move the dma_debug_init initcall from core to postcore stage so that
debugfs will already be initialized by the time this is called, making
it oblivious to link-ordering.

Fixes: 15b28bbcd567 ("dma-debug: move initialization to common code")
Signed-off-by: Anthony Iliopoulos <ailiop@xxxxxxxx>
---
kernel/dma/debug.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/dma/debug.c b/kernel/dma/debug.c
index 14de1271463f..49d80ef7f995 100644
--- a/kernel/dma/debug.c
+++ b/kernel/dma/debug.c
@@ -915,7 +915,7 @@ static int dma_debug_init(void)
pr_info("debugging enabled by kernel config\n");
return 0;
}
-core_initcall(dma_debug_init);
+postcore_initcall(dma_debug_init);

static __init int dma_debug_cmdline(char *str)
{
--
2.32.0