linux-kernel - [PATCH] dma-buf: heaps: init heaps in subsys

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Message-Id: <20211021061607.17618-1-huangshuosheng@allwinnertech.com>
Date:   Thu, 21 Oct 2021 14:16:07 +0800
From:   Shuosheng Huang <huangshuosheng@...winnertech.com>
To:     sumit.semwal@...aro.org, benjamin.gaignard@...aro.org,
        lmark@...eaurora.org, labbott@...hat.com, Brian.Starkey@....com,
        john.stultz@...aro.org, christian.koenig@....com
Cc:     linux-media@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linaro-mm-sig@...ts.linaro.org, linux-kernel@...r.kernel.org,
        Shuosheng Huang <huangshuosheng@...winnertech.com>
Subject: [PATCH] dma-buf: heaps: init heaps in subsys_initcall

Some built-in modules will failed to use dma-buf heap to allocate
memory if the heap drivers is too late to be initialized.
To fix this issue, move initialization of dma-buf heap drivers in
subsys_initcall() which is more earlier to be called.

Signed-off-by: Shuosheng Huang <huangshuosheng@...winnertech.com>
---
 drivers/dma-buf/heaps/cma_heap.c    | 2 +-
 drivers/dma-buf/heaps/system_heap.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/dma-buf/heaps/cma_heap.c b/drivers/dma-buf/heaps/cma_heap.c
index 0c05b79870f9..e051403a346d 100644
--- a/drivers/dma-buf/heaps/cma_heap.c
+++ b/drivers/dma-buf/heaps/cma_heap.c
@@ -400,6 +400,6 @@ static int add_default_cma_heap(void)
 
 	return ret;
 }
-module_init(add_default_cma_heap);
+subsys_initcall(add_default_cma_heap);
 MODULE_DESCRIPTION("DMA-BUF CMA Heap");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/dma-buf/heaps/system_heap.c b/drivers/dma-buf/heaps/system_heap.c
index 23a7e74ef966..3d6927657ec9 100644
--- a/drivers/dma-buf/heaps/system_heap.c
+++ b/drivers/dma-buf/heaps/system_heap.c
@@ -435,5 +435,5 @@ static int system_heap_create(void)
 
 	return 0;
 }
-module_init(system_heap_create);
+subsys_initcall(system_heap_create);
 MODULE_LICENSE("GPL v2");
-- 
2.29.0