From: Chen-Yu Tsai <wens@csie.org> To: Lee Jones <lee.jones@linaro.org> Cc: linux-arm-kernel <linux-arm-kernel@lists.infradead.org>, linux-kernel <linux-kernel@vger.kernel.org>, Carlo Caione <carlo@caione.org> Subject: Re: [PATCH 5/5] mfd: axp20x-i2c: Do not define 'struct acpi_device_id' when !CONFIG_ACPI Date: Mon, 29 Jun 2020 23:38:47 +0800 [thread overview] Message-ID: <CAGb2v66Ws4WNPZbOYQvikKoozj_2WjzS-Jq-o2VxT77=k0vODw@mail.gmail.com> (raw) In-Reply-To: <20200629123215.1014747-6-lee.jones@linaro.org> Adding Hans to the list as he's the one that deals with all the x86 platforms that use this series of chips. On Mon, Jun 29, 2020 at 8:32 PM Lee Jones <lee.jones@linaro.org> wrote: > > Since ACPI_PTR() is used to NULLify the value when !CONFIG_ACPI, > struct axp20x_i2c_acpi_match becomes defined by unused. > > This squashes the current W=1 kernel builds warning: > > drivers/mfd/axp20x-i2c.c:82:36: warning: ‘axp20x_i2c_acpi_match’ defined but not used [-Wunused-const-variable=] > > Cc: Chen-Yu Tsai <wens@csie.org> > Cc: Carlo Caione <carlo@caione.org> > Signed-off-by: Lee Jones <lee.jones@linaro.org> > --- > drivers/mfd/axp20x-i2c.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/mfd/axp20x-i2c.c b/drivers/mfd/axp20x-i2c.c > index 14f9df74f855c..3dd650125c239 100644 > --- a/drivers/mfd/axp20x-i2c.c > +++ b/drivers/mfd/axp20x-i2c.c > @@ -79,6 +79,7 @@ static const struct i2c_device_id axp20x_i2c_id[] = { > }; > MODULE_DEVICE_TABLE(i2c, axp20x_i2c_id); > > +#if IS_ENABLED(CONFIG_ACPI) > static const struct acpi_device_id axp20x_i2c_acpi_match[] = { I'd rather use "__maybe_unused" if possible to at least get a compile check, and also because "ACPI_PTR NULLifies the value" might not be well known to people not working on ACPI-based platforms. Either way, Acked-by: Chen-Yu Tsai <wens@csie.org> > { > .id = "INT33F4", > @@ -87,6 +88,7 @@ static const struct acpi_device_id axp20x_i2c_acpi_match[] = { > { }, > }; > MODULE_DEVICE_TABLE(acpi, axp20x_i2c_acpi_match); > +#endif > > static struct i2c_driver axp20x_i2c_driver = { > .driver = { > -- > 2.25.1 >
WARNING: multiple messages have this Message-ID (diff)
From: Chen-Yu Tsai <wens@csie.org> To: Lee Jones <lee.jones@linaro.org> Cc: Carlo Caione <carlo@caione.org>, linux-kernel <linux-kernel@vger.kernel.org>, linux-arm-kernel <linux-arm-kernel@lists.infradead.org> Subject: Re: [PATCH 5/5] mfd: axp20x-i2c: Do not define 'struct acpi_device_id' when !CONFIG_ACPI Date: Mon, 29 Jun 2020 23:38:47 +0800 [thread overview] Message-ID: <CAGb2v66Ws4WNPZbOYQvikKoozj_2WjzS-Jq-o2VxT77=k0vODw@mail.gmail.com> (raw) In-Reply-To: <20200629123215.1014747-6-lee.jones@linaro.org> Adding Hans to the list as he's the one that deals with all the x86 platforms that use this series of chips. On Mon, Jun 29, 2020 at 8:32 PM Lee Jones <lee.jones@linaro.org> wrote: > > Since ACPI_PTR() is used to NULLify the value when !CONFIG_ACPI, > struct axp20x_i2c_acpi_match becomes defined by unused. > > This squashes the current W=1 kernel builds warning: > > drivers/mfd/axp20x-i2c.c:82:36: warning: ‘axp20x_i2c_acpi_match’ defined but not used [-Wunused-const-variable=] > > Cc: Chen-Yu Tsai <wens@csie.org> > Cc: Carlo Caione <carlo@caione.org> > Signed-off-by: Lee Jones <lee.jones@linaro.org> > --- > drivers/mfd/axp20x-i2c.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/mfd/axp20x-i2c.c b/drivers/mfd/axp20x-i2c.c > index 14f9df74f855c..3dd650125c239 100644 > --- a/drivers/mfd/axp20x-i2c.c > +++ b/drivers/mfd/axp20x-i2c.c > @@ -79,6 +79,7 @@ static const struct i2c_device_id axp20x_i2c_id[] = { > }; > MODULE_DEVICE_TABLE(i2c, axp20x_i2c_id); > > +#if IS_ENABLED(CONFIG_ACPI) > static const struct acpi_device_id axp20x_i2c_acpi_match[] = { I'd rather use "__maybe_unused" if possible to at least get a compile check, and also because "ACPI_PTR NULLifies the value" might not be well known to people not working on ACPI-based platforms. Either way, Acked-by: Chen-Yu Tsai <wens@csie.org> > { > .id = "INT33F4", > @@ -87,6 +88,7 @@ static const struct acpi_device_id axp20x_i2c_acpi_match[] = { > { }, > }; > MODULE_DEVICE_TABLE(acpi, axp20x_i2c_acpi_match); > +#endif > > static struct i2c_driver axp20x_i2c_driver = { > .driver = { > -- > 2.25.1 > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-06-29 19:17 UTC|newest] Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-06-29 12:32 [PATCH 0/5] Last batch of W=1 warning fixes in MFD Lee Jones 2020-06-29 12:32 ` Lee Jones 2020-06-29 12:32 ` [PATCH 1/5] mfd: si476x-cmd: Add missing documentation for si476x_cmd_fm_rds_status()'s arg 'report' Lee Jones 2020-06-29 12:32 ` Lee Jones 2020-06-29 12:32 ` [PATCH 2/5] mfd: lm3533-ctrlbank: Cap BRIGHTNESS_MAX to 127 since API uses u8 as carrier Lee Jones 2020-06-29 12:32 ` Lee Jones 2020-06-29 12:51 ` Johan Hovold 2020-06-29 12:51 ` Johan Hovold 2020-06-29 13:25 ` Lee Jones 2020-06-29 13:25 ` Lee Jones 2020-06-30 8:38 ` Johan Hovold 2020-06-30 8:38 ` Johan Hovold 2020-06-29 12:32 ` [PATCH 3/5] mfd: rave-sp: Fix mistake in 'struct rave_sp_deframer's kerneldoc Lee Jones 2020-06-29 12:32 ` Lee Jones 2020-06-29 12:32 ` [PATCH 4/5] mfd: sprd-sc27xx-spi: Fix divide by zero when allocating register offset/mask Lee Jones 2020-06-29 12:32 ` Lee Jones 2020-06-29 13:06 ` Johan Hovold 2020-06-29 13:06 ` Johan Hovold 2020-06-29 14:01 ` Lee Jones 2020-06-29 14:01 ` Lee Jones 2020-06-29 14:35 ` Baolin Wang 2020-06-29 14:35 ` Baolin Wang 2020-06-29 14:43 ` Johan Hovold 2020-06-29 14:43 ` Johan Hovold 2020-06-29 15:08 ` Baolin Wang 2020-06-29 15:08 ` Baolin Wang 2020-06-29 15:45 ` Lee Jones 2020-06-29 15:45 ` Lee Jones 2020-07-01 9:15 ` [PATCH] mfd: sprd-sc27xx-spi: Fix-up bogus IRQ register offset and mask setting Lee Jones 2020-07-01 9:15 ` Lee Jones 2020-07-01 14:10 ` Baolin Wang 2020-07-01 14:10 ` Baolin Wang 2020-06-29 12:32 ` [PATCH 5/5] mfd: axp20x-i2c: Do not define 'struct acpi_device_id' when !CONFIG_ACPI Lee Jones 2020-06-29 12:32 ` Lee Jones 2020-06-29 15:38 ` Chen-Yu Tsai [this message] 2020-06-29 15:38 ` Chen-Yu Tsai 2020-07-06 7:31 ` Lee Jones 2020-07-06 7:31 ` Lee Jones 2020-07-01 6:59 ` [PATCH v2] mfd: axp20x-i2c: Tell the compiler that ACPI functions may not be used Lee Jones 2020-07-01 6:59 ` Lee Jones 2020-07-01 8:38 ` Chen-Yu Tsai 2020-07-01 8:38 ` Chen-Yu Tsai
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