From: "Arnd Bergmann" <arnd@arndb.de>
To: "Christoph Hellwig" <hch@lst.de>,
"Luis Chamberlain" <mcgrof@kernel.org>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
"Daniel Mack" <daniel@zonque.org>,
"Haojian Zhuang" <haojian.zhuang@gmail.com>,
"Robert Jarzmik" <robert.jarzmik@free.fr>,
"Ulf Hansson" <ulf.hansson@linaro.org>,
"Yangbo Lu" <yangbo.lu@nxp.com>,
"Joshua Kinard" <kumba@gentoo.org>
Cc: "Daniel Vetter" <daniel.vetter@ffwll.ch>,
linux-arm-kernel@lists.infradead.org,
"open list" <linux-kernel@vger.kernel.org>,
"linux-mmc @ vger . kernel . org" <linux-mmc@vger.kernel.org>,
Netdev <netdev@vger.kernel.org>,
linux-rtc@vger.kernel.org, linux-modules@vger.kernel.org
Subject: Re: [PATCH 1/5] ARM/pxa: use EXPORT_SYMBOL_GPL for sharpsl_battery_kick
Date: Mon, 31 Jul 2023 18:12:22 +0200 [thread overview]
Message-ID: <86b73242-94bb-4537-92ec-51da02127848@app.fastmail.com> (raw)
In-Reply-To: <20230731083806.453036-2-hch@lst.de>
On Mon, Jul 31, 2023, at 10:38, Christoph Hellwig wrote:
> sharpsl_battery_kick is only used via symbol_get, which was only ever
> intended for very internal symbols like this one. Use EXPORT_SYMBOL_GPL
> for it so that symbol_get can enforce only being used on
> EXPORT_SYMBOL_GPL symbols.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
The reasoning makes sense, and the patch looks good, so feel
free to take this through your tree.
Acked-by: Arnd Bergmann <arnd@arndb.de>
Or let me know if you want a better fix. Since sharpsl_pm.c and
spitz.c are no longer loadable modules and just get linked together
these days, I think the variant below would be simpler (this could
be cleanup up further, endlessly, of course):
--- a/arch/arm/mach-pxa/spitz.c
+++ b/arch/arm/mach-pxa/spitz.c
@@ -518,17 +518,6 @@ static struct gpiod_lookup_table spitz_ads7846_gpio_table = {
},
};
-static void spitz_bl_kick_battery(void)
-{
- void (*kick_batt)(void);
-
- kick_batt = symbol_get(sharpsl_battery_kick);
- if (kick_batt) {
- kick_batt();
- symbol_put(sharpsl_battery_kick);
- }
-}
-
static struct gpiod_lookup_table spitz_lcdcon_gpio_table = {
.dev_id = "spi2.1",
.table = {
@@ -556,7 +545,7 @@ static struct corgi_lcd_platform_data spitz_lcdcon_info = {
.max_intensity = 0x2f,
.default_intensity = 0x1f,
.limit_mask = 0x0b,
- .kick_battery = spitz_bl_kick_battery,
+ .kick_battery = sharpsl_battery_kick,
};
static struct spi_board_info spitz_spi_devices[] = {
next prev parent reply other threads:[~2023-07-31 16:12 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-31 8:38 require EXPORT_SYMBOL_GPL symbols for symbol_get Christoph Hellwig
2023-07-31 8:38 ` [PATCH 1/5] ARM/pxa: use EXPORT_SYMBOL_GPL for sharpsl_battery_kick Christoph Hellwig
2023-07-31 16:12 ` Arnd Bergmann [this message]
2023-07-31 16:26 ` Christoph Hellwig
2023-07-31 8:38 ` [PATCH 2/5] net: enetc: use EXPORT_SYMBOL_GPL for enetc_phc_index Christoph Hellwig
2023-07-31 18:19 ` Jakub Kicinski
2023-07-31 8:38 ` [PATCH 3/5] rtc: ds1685: use EXPORT_SYMBOL_GPL for ds1685_rtc_poweroff Christoph Hellwig
2023-07-31 15:08 ` Joshua Kinard
2023-07-31 8:38 ` [PATCH 4/5] mmc: use EXPORT_SYMBOL_GPL for mmc_detect_change Christoph Hellwig
2023-07-31 16:57 ` Christoph Hellwig
2023-07-31 8:38 ` [PATCH 5/5] modules: only allow symbol_get of EXPORT_SYMBOL_GPL modules Christoph Hellwig
2023-07-31 11:05 ` Greg Kroah-Hartman
2023-07-31 18:11 ` Simon Horman
2023-07-31 20:38 ` Luis Chamberlain
2023-07-31 11:05 ` require EXPORT_SYMBOL_GPL symbols for symbol_get Greg Kroah-Hartman
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=86b73242-94bb-4537-92ec-51da02127848@app.fastmail.com \
--to=arnd@arndb.de \
--cc=daniel.vetter@ffwll.ch \
--cc=daniel@zonque.org \
--cc=gregkh@linuxfoundation.org \
--cc=haojian.zhuang@gmail.com \
--cc=hch@lst.de \
--cc=kumba@gentoo.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mmc@vger.kernel.org \
--cc=linux-modules@vger.kernel.org \
--cc=linux-rtc@vger.kernel.org \
--cc=mcgrof@kernel.org \
--cc=netdev@vger.kernel.org \
--cc=robert.jarzmik@free.fr \
--cc=ulf.hansson@linaro.org \
--cc=yangbo.lu@nxp.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).