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iio: magnetometer: Only declare ACPI table when ACPI is enable

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Don't inflate the kernel size with data that isn't used. The conditional
declaration also fixes the following warning when building with clang:

drivers/iio/magnetometer/ak8975.c:704:36: error: variable 'ak_acpi_match'
  is not needed and will not be emitted
  [-Werror,-Wunneeded-internal-declaration]

Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Matthias Kaehlcke 2017-06-26 17:25:33 -07:00 committed by Jonathan Cameron
parent 893bd0ebfa
commit 2aac3388f1
1 changed files with 2 additions and 0 deletions
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2
drivers/iio/magnetometer/ak8975.c
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@ -784,6 +784,7 @@ static const struct iio_info ak8975_info = {
.driver_module = THIS_MODULE,
};
#ifdef CONFIG_ACPI
static const struct acpi_device_id ak_acpi_match[] = {
{"AK8975", AK8975},
{"AK8963", AK8963},
@ -793,6 +794,7 @@ static const struct acpi_device_id ak_acpi_match[] = {
{ },
};
MODULE_DEVICE_TABLE(acpi, ak_acpi_match);
#endif
static const char *ak8975_match_acpi_device(struct device *dev,
enum asahi_compass_chipset *chipset)