linux-kernel - Re: [PATCH v2 19/24] dyndbg: accept query terms like module:foo and file=bar

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Date:   Tue, 16 Jun 2020 14:08:57 -0600
From:   jim.cromie@...il.com
To:     Petr Mladek <pmladek@...e.com>
Cc:     Jason Baron <jbaron@...mai.com>,
        LKML <linux-kernel@...r.kernel.org>, akpm@...uxfoundation.org,
        Greg KH <gregkh@...uxfoundation.org>,
        Rasmus Villemoes <linux@...musvillemoes.dk>
Subject: Re: [PATCH v2 19/24] dyndbg: accept query terms like module:foo and file=bar

On Tue, Jun 16, 2020 at 5:57 AM Petr Mladek <pmladek@...e.com> wrote:
>
> On Sat 2020-06-13 09:57:33, Jim Cromie wrote:
> > Current code expects "keyword" "arg" as 2 space separated words.
> > Change to also accept "keyword:arg" and "keyword=arg" forms as well,
> > and drop !(nwords%2) requirement.
> >
> > Then in rest of function, use new keyword,arg variables instead of
> > word[i],word[i+1]
>
> I like the idea. But please allow only one form. IMHO, parameter=value
> is a common way to pass values to commandline parameters.
>

I dont see a basis to prefer one over the other.
we already now accept  " file   foo.c:func "
that might argue for file=foo:func
but file:foo:func is what youd expect reading left-to-right


> Note that "keyword" and "arg" is strange naming, especially "arg".
>

I think keyword is clear in context. query_term is suitable, but no better.

arg is pretty generic, without overloaded meaning like value ( like
lvalue ? rvalue ?)
almost as old as 'i', but generally a string (not an int)
Is there an alternative you favor ?

> Best Regards,
> Petr