linux-kernel - Re: [RESEND PATCH] tools/bootconfig: Fix a compilation issue with missing variable

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Date:   Wed, 8 Sep 2021 09:13:46 +0900
From:   Masami Hiramatsu <mhiramat@...nel.org>
To:     Punit Agrawal <punitagrawal@...il.com>
Cc:     linux-kernel@...r.kernel.org, Steven Rostedt <rostedt@...dmis.org>
Subject: Re: [RESEND PATCH] tools/bootconfig: Fix a compilation issue with
 missing variable

Hi Punit,

This has been fixed by Julio's patch and we are waiting for merge.

https://lore.kernel.org/all/20210831033256.5973-1-jcfaracco@gmail.com/T/#u

Thank you,

On Wed,  8 Sep 2021 08:07:10 +0900
Punit Agrawal <punitagrawal@...il.com> wrote:

> While looking to build bootconfig tool in order to debug a kernel boot
> time issue I noticed that tool fails to compile. The broken changes
> were introduced by commit e5efaeb8a8f5 ("bootconfig: Support mixing a
> value and subkeys under a key").
> 
> Fix the compile issue by introducing a "ret" variable to track the
> return value from xbc_node_compose_key().
> 
> Fixes: e5efaeb8a8f5 ("bootconfig: Support mixing a value and subkeys under a key")
> Signed-off-by: Punit Agrawal <punitagrawal@...il.com>
> Cc: Masami Hiramatsu <mhiramat@...nel.org>
> Cc: Steven Rostedt <rostedt@...dmis.org>
> ---
> 
> (Apologies for the resend. I fat-fingered the email address for lkml)
> 
> Hi Masami,
> 
> I am not sure what went wrong but the patch in the lore link[0]
> doesn't match the end result (bad merge?). You may want to recheck the
> other changes to make sure it all looks sane.
> 
> Regards,
> Punit
> 
> [0] https://lkml.kernel.org/r/162262194685.264090.7738574774030567419.stgit@devnote2
> ---
>  tools/bootconfig/main.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/tools/bootconfig/main.c b/tools/bootconfig/main.c
> index f45fa992e01d..fd67496a947f 100644
> --- a/tools/bootconfig/main.c
> +++ b/tools/bootconfig/main.c
> @@ -111,9 +111,11 @@ static void xbc_show_list(void)
>  	char key[XBC_KEYLEN_MAX];
>  	struct xbc_node *leaf;
>  	const char *val;
> +	int ret;
>  
>  	xbc_for_each_key_value(leaf, val) {
> -		if (xbc_node_compose_key(leaf, key, XBC_KEYLEN_MAX) < 0) {
> +		ret = xbc_node_compose_key(leaf, key, XBC_KEYLEN_MAX);
> +		if (ret < 0) {
>  			fprintf(stderr, "Failed to compose key %d\n", ret);
>  			break;
>  		}
> -- 
> 2.32.0
> 


-- 
Masami Hiramatsu <mhiramat@...nel.org>