Re: [PATCH] nvram: annotate implicit fall through

From: Gustavo A. R. Silva
Date: Mon Jan 14 2019 - 16:40:45 EST




On 1/14/19 2:44 PM, Mathieu Malaterre wrote:
There is a plan to build the kernel with -Wimplicit-fallthrough and
this place in the code produced a warning (W=1).

This commit remove the following warning:

drivers/char/generic_nvram.c:83:3: warning: this statement may fall through [-Wimplicit-fallthrough=]

Signed-off-by: Mathieu Malaterre <malat@xxxxxxxxxx>
---
drivers/char/generic_nvram.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/char/generic_nvram.c b/drivers/char/generic_nvram.c
index ff5394f47587..53123c110f7b 100644
--- a/drivers/char/generic_nvram.c
+++ b/drivers/char/generic_nvram.c
@@ -81,6 +81,7 @@ static int nvram_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
#ifdef CONFIG_PPC_PMAC
case OBSOLETE_PMAC_NVRAM_GET_OFFSET:
printk(KERN_WARNING "nvram: Using obsolete PMAC_NVRAM_GET_OFFSET ioctl\n");

Here you could use the pr_warn() macro instead of the obsolete printk KERN_WARNING, but that'd
be another patch.

Anyway:

Acked-by: Gustavo A. R. Silva <gustavo@xxxxxxxxxxxxxx>

Thanks
--
Gustavo

+ /* fall through */
case IOC_NVRAM_GET_OFFSET: {
int part, offset;