RE: [PATCH] staging: kpc2000: kpc_dma: fix symbol 'kpc_dma_add_device' was not declared.

From: Matt Sickler
Date: Wed Jun 05 2019 - 12:13:50 EST


>This was reported by sparse:
>drivers/staging/kpc2000/kpc_dma/kpc_dma_driver.c:39:7: warning: symbol
>'kpc_dma_add_device
>' was not declared. Should it be static?
>
>Signed-off-by: Valerio Genovese <valerio.click@xxxxxxxxx>
>---
> drivers/staging/kpc2000/kpc_dma/kpc_dma_driver.h | 1 +
> 1 file changed, 1 insertion(+)
>
>diff --git a/drivers/staging/kpc2000/kpc_dma/kpc_dma_driver.h
>b/drivers/staging/kpc2000/kpc_dma/kpc_dma_driver.h
>index ee47f43e71cf..19e88c3bc13f 100644
>--- a/drivers/staging/kpc2000/kpc_dma/kpc_dma_driver.h
>+++ b/drivers/staging/kpc2000/kpc_dma/kpc_dma_driver.h
>@@ -56,6 +56,7 @@ struct dev_private_data {
> };
>
> struct kpc_dma_device *kpc_dma_lookup_device(int minor);
>+void kpc_dma_add_device(struct kpc_dma_device *ldev);
>
> extern const struct file_operations kpc_dma_fops;
>

Wouldn't it be better to mark the function static?
It's only used in kpc_dma_driver.c which is where it's defined.