Subject: Re: [PATCH] global: constify some pointers that are not written to

From: Collin Funk <[email-masked]>
Date: Thu, 05 Feb 2026 14:00:50 -0800

Junio C Hamano <[email-masked]> writes:

>> diff --git a/pkt-line.c b/pkt-line.c
>> index fc583feb26..3fc3e9ea70 100644
>> --- a/pkt-line.c
>> +++ b/pkt-line.c
>> @@ -384,10 +384,10 @@ int packet_length(const char lenbuf_hex[4], size_t size)
>>  		hexval(lenbuf_hex[3]);
>>  }
>>  
>> -static char *find_packfile_uri_path(const char *buffer)
>> +static const char *find_packfile_uri_path(const char *buffer)
>>  {
>>  	const char *URI_MARK = "://";
>> -	char *path;
>> +	const char *path;
>>  	int len;
>>  
>>  	/* First char is sideband mark */
>
> Everything other than this hunk is adding "const" to local pointers
> and compilers will complain if we depended on them being writable,
> so this is an easy patch to review.  We can trust even this hunk to
> compilers, as the callers of this function would be flagged if they
> tried to write through the return value from it.
>
> Looking good.  I agree with Peff that the removal of unused NULL
> initialization would have been much better done in a separate patch.

Ack. I figured it would be okay since I was already changing the line.
But noted that Git is a bit more organized than me.

I'll send a V2 later which splits that into a separate patch.

Thanks both for the review.

Collin