ASoC: intel: add function stub when ACPI is not enabled

From: Randy Dunlap <[email protected]>

Add function stub for "sst_acpi_find_name_from_hid()" when CONFIG_ACPI is not enabled so that the driver will build successfully. This fixes the following build errors:

(loadable module)
ERROR: "sst_acpi_find_name_from_hid" [sound/soc/intel/boards/snd-soc-sst-bytcr-rt5640.ko] undefined! (or built-in)
bytcr_rt5640.c:(.text+0x26fc52): undefined reference to `sst_acpi_find_name_from_hid'

---
 sound/soc/intel/common/sst-acpi.h |    9 +++++++++
 1 file changed, 9 insertions(+)

@@ -12,10 +12,19 @@
  *
  */
 
+#include <linux/kconfig.h>
+#include <linux/stddef.h>
 #include <linux/acpi.h>
 
 /* translation fron HID to I2C name, needed for DAI codec_name */
+#if IS_ENABLED(CONFIG_ACPI)
 const char *sst_acpi_find_name_from_hid(const u8 hid[ACPI_ID_LEN]);
+#else
+inline const char *sst_acpi_find_name_from_hid(const u8 hid[ACPI_ID_LEN])
+{
+	return NULL;
+}
+#endif
 
 /* acpi match */
 struct sst_acpi_mach *sst_acpi_find_machine(struct sst_acpi_mach *machines);

The patch

ASoC: intel: add function stub when ACPI is not enabled

has been applied to the asoc tree at

git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git

All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying to this mail.

Thanks,
Mark

From: Randy Dunlap <[email protected]>
Date: Tue, 29 Mar 2016 09:45:00 -0700
Subject: [PATCH] ASoC: intel: add function stub when ACPI is not enabled

Add function stub for "sst_acpi_find_name_from_hid()" when CONFIG_ACPI is not enabled so that the driver will build successfully. This fixes the following build errors:

(loadable module)
ERROR: "sst_acpi_find_name_from_hid" [sound/soc/intel/boards/snd-soc-sst-bytcr-rt5640.ko] undefined! (or built-in)
bytcr_rt5640.c:(.text+0x26fc52): undefined reference to `sst_acpi_find_name_from_hid'

---
 sound/soc/intel/common/sst-acpi.h | 9 +++++++++
 1 file changed, 9 insertions(+)

index 4dcfb7e5ed70..8398cb227ba9 100644
@@ -12,10 +12,19 @@
  *
  */
 
+#include <linux/kconfig.h>
+#include <linux/stddef.h>
 #include <linux/acpi.h>
 
 /* translation fron HID to I2C name, needed for DAI codec_name */
+#if IS_ENABLED(CONFIG_ACPI)
 const char *sst_acpi_find_name_from_hid(const u8 hid[ACPI_ID_LEN]);
+#else
+inline const char *sst_acpi_find_name_from_hid(const u8 hid[ACPI_ID_LEN])
+{
+	return NULL;
+}
+#endif
 
 /* acpi match */
 struct sst_acpi_mach *sst_acpi_find_machine(struct sst_acpi_mach *machines);

2.8.0.rc3