From: Tom Rini <trini@konsulko.com>
To: u-boot@lists.denx.de
Subject: [PATCH 2/5] env_internal.h: add alternative ENV_SAVE_PTR macro
Date: Fri, 24 Apr 2020 13:08:18 -0400 [thread overview]
Message-ID: <20200424170818.GV4555@bill-the-cat> (raw)
In-Reply-To: <20200219094726.26798-3-rasmus.villemoes@prevas.dk>
On Wed, Feb 19, 2020 at 09:47:40AM +0000, Rasmus Villemoes wrote:
> The current definition of the env_save_ptr does not take SPL_SAVEENV
> into account. Moreover, the way it is implemented means that drivers
> need to guard the definitions of their _save methods with ifdefs to
> avoid "defined but unused" warnings in case CMD_SAVEENV=n.
>
> The ifdeffery can be avoided by using a "something ? x : NULL"
> construction instead and still have the compiler elide the _save
> method when it is not referenced. Unfortunately we can't just switch
> the existing env_save_ptr macro, since that would give a lot of build
> errors unless all the ifdeffery is removed at the same time.
> Conversely, removing that ifdeffery first would merely lead to the
> "defined but unused" warnings temporarily, but for some storage
> drivers it requires a bit more work than just removing their private
> CMD_SAVEENV logic.
>
> So introduce an alternative to env_save_ptr, which for lack of a
> better name is simply uppercased, allowing one to update storage
> drivers piecemeal to both reduce their ifdeffery and honour
> CONFIG_SPL_SAVEENV.
>
> Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk>
Applied to u-boot/master, thanks!
--
Tom
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next prev parent reply other threads:[~2020-04-24 17:08 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-19 9:47 [PATCH 0/5] CMD_SAVEENV ifdef cleanup Rasmus Villemoes
2020-02-19 9:47 ` [PATCH 1/5] env: add SAVEENV as an alias of the CMD_SAVEENV symbol Rasmus Villemoes
2020-04-24 17:08 ` Tom Rini
2020-02-19 9:47 ` [PATCH 2/5] env_internal.h: add alternative ENV_SAVE_PTR macro Rasmus Villemoes
2020-04-24 17:08 ` Tom Rini [this message]
2020-02-19 9:47 ` [PATCH 3/5] env/fat.c: remove private CMD_SAVEENV logic Rasmus Villemoes
2020-02-19 13:27 ` Wolfgang Denk
2020-02-20 14:22 ` Rasmus Villemoes
2020-02-21 16:14 ` Wolfgang Denk
2020-02-21 16:19 ` Tom Rini
2020-02-24 14:49 ` Rasmus Villemoes
2020-04-24 17:08 ` Tom Rini
2020-02-19 9:47 ` [PATCH 4/5] env/ext4.c: remove CONFIG_CMD_SAVEENV ifdef Rasmus Villemoes
2020-04-24 17:08 ` Tom Rini
2020-02-19 9:47 ` [PATCH 5/5] env/sf.c: drop private CMD_SAVEENV logic Rasmus Villemoes
2020-04-24 17:08 ` Tom Rini
2020-02-19 13:25 ` [PATCH 0/5] CMD_SAVEENV ifdef cleanup Wolfgang Denk
2020-02-19 13:43 ` Rasmus Villemoes
2020-03-24 19:42 ` Rasmus Villemoes
2020-03-25 7:50 ` Wolfgang Denk
2020-03-25 11:37 ` Rasmus Villemoes
2020-03-26 14:31 ` Wolfgang Denk
2020-03-26 16:04 ` Rasmus Villemoes
2020-03-26 23:01 ` [PATCH v2 0/2] allow CONFIG_SPL_SAVEENV to work with ENV_IS_IN_SPI_FLASH Rasmus Villemoes
2020-03-26 23:01 ` [PATCH v2 1/2] env: add SAVEENV as an alias of the CMD_SAVEENV symbol Rasmus Villemoes
2020-05-08 22:59 ` Tom Rini
2020-03-26 23:02 ` [PATCH v2 2/2] env/sf.c: honour CONFIG_SPL_SAVEENV Rasmus Villemoes
2020-05-08 22:59 ` Tom Rini
2020-05-09 18:56 ` Rasmus Villemoes
2020-05-09 20:54 ` Tom Rini
2020-05-11 6:49 ` Rasmus Villemoes
2020-05-11 16:06 ` Tom Rini
2020-03-27 16:31 ` [PATCH v2 0/2] allow CONFIG_SPL_SAVEENV to work with ENV_IS_IN_SPI_FLASH Wolfgang Denk
2020-03-27 20:06 ` Rasmus Villemoes
2020-03-30 10:40 ` Wolfgang Denk
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