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From: "Marek Behún" <kabel@kernel.org>
To: Simon Glass <sjg@chromium.org>
Cc: "Tom Rini" <trini@konsulko.com>,
	"U-Boot Mailing List" <u-boot@lists.denx.de>,
	"Marek Behún" <marek.behun@nic.cz>
Subject: Re: [PATCH v2 09/13] env: Use string pointer instead of indexes in env_get_f()
Date: Fri, 15 Oct 2021 15:20:42 +0200	[thread overview]
Message-ID: <20211015152042.7f00438d@dellmb> (raw)
In-Reply-To: <CAPnjgZ3A10spkTwcbCTW9hec6=Mj6J+oOzSZ=+J7nxswxiCwZg@mail.gmail.com>

Hi Simon,

On Thu, 14 Oct 2021 18:40:02 -0600
Simon Glass <sjg@chromium.org> wrote:

> > -static int env_match(const char *env, const char *s1, int i2)
> > +static const char *matching_name_get_value(const char *p, const
> > char *name)  
> 
> OK so this is the function where I would like a nice comment, please.

Now that I look at it, I notice that it also works for cases when name
is "abc=def" (it matches just "abc"). This was the purpose of
env_match() before, but env_get_f() does not use it that way, and this
functionality can now be removed.

This would simplify the code to something like
  len = strlen(name);
  if (p[len] == '=' && !strncmp(p, name, len))
    return &p[len + 1];
  return NULL;

And this is simple enough to be inlined into env_get_f().

I will refactor this and send v3.

Marek

  reply	other threads:[~2021-10-15 13:20 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-13 15:45 [PATCH v2 00/13] env_get_char() removal and env_get_f() refactor Marek Behún
2021-10-13 15:45 ` [PATCH v2 01/13] env: Fix documentation for env_get_f() Marek Behún
2021-10-14 15:11   ` Simon Glass
2021-10-13 15:45 ` [PATCH v2 02/13] env: Drop env_get_char_spec() and old, unused .get_char() implementations Marek Behún
2021-10-14 15:11   ` Simon Glass
2021-10-13 15:45 ` [PATCH v2 03/13] examples: api: glue: Remove comment that does not apply anymore Marek Behún
2021-10-14 15:11   ` Simon Glass
2021-10-13 15:45 ` [PATCH v2 04/13] env: Change env_match() to static and remove from header Marek Behún
2021-10-14 15:11   ` Simon Glass
2021-10-14 16:06     ` Marek Behún
2021-10-14 18:24       ` Simon Glass
2021-10-15  0:40         ` Simon Glass
2021-10-13 15:45 ` [PATCH v2 05/13] env: Don't match empty variable name in env_match() Marek Behún
2021-10-14 15:11   ` Simon Glass
2021-10-13 15:45 ` [PATCH v2 06/13] env: Check for terminating null-byte " Marek Behún
2021-10-14 15:11   ` Simon Glass
2021-10-13 15:45 ` [PATCH v2 07/13] env: Inline env_get_char() into it's only user Marek Behún
2021-10-14 15:11   ` Simon Glass
2021-10-13 15:45 ` [PATCH v2 08/13] env: Early return from env_get_f() on NULL name Marek Behún
2021-10-14 15:11   ` Simon Glass
2021-10-13 15:45 ` [PATCH v2 09/13] env: Use string pointer instead of indexes in env_get_f() Marek Behún
2021-10-14 15:11   ` Simon Glass
2021-10-15  0:40   ` Simon Glass
2021-10-15 13:20     ` Marek Behún [this message]
2021-10-13 15:45 ` [PATCH v2 10/13] env: Use better name for variable " Marek Behún
2021-10-14 15:11   ` Simon Glass
2021-10-15  0:40   ` Simon Glass
2021-10-13 15:45 ` [PATCH v2 11/13] env: Make return value of env_get_f() behave like sprintf() on success Marek Behún
2021-10-14 15:11   ` Simon Glass
2021-10-13 15:45 ` [PATCH v2 12/13] env: Use memcpy() instead of ad-hoc code to copy variable value Marek Behún
2021-10-14 15:11   ` Simon Glass
2021-10-13 15:45 ` [PATCH v2 13/13] env: Move non-cmd specific env functions to env/common.c Marek Behún
2021-10-14 15:11   ` Simon Glass

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