Thread (28 messages) 28 messages, 7 authors, 2020-07-08

Re: [PATCH 15/15] mmc: host: sdhci-iproc: Tell the compiler that ACPI functions may not be used

From: Scott Branden <scott.branden@broadcom.com>
Date: 2020-07-02 19:42:51
Also in: lkml

Hi Lee,

On 2020-07-01 5:47 a.m., Lee Jones wrote:
quoted hunk ↗ jump to hunk
... as is the case when !CONFIG_ACPI.

Fixes the following W=1 kernel build warning:

  mmc/host/sdhci-iproc.c:297:36: warning: ‘sdhci_iproc_acpi_ids’ defined but not used [-Wunused-const-variable=]

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ray Jui <rjui@broadcom.com>
Cc: Scott Branden <sbranden@broadcom.com>
Cc: bcm-kernel-feedback-list@broadcom.com
Signed-off-by: Lee Jones <redacted>
---
  drivers/mmc/host/sdhci-iproc.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mmc/host/sdhci-iproc.c b/drivers/mmc/host/sdhci-iproc.c
index 225603148d7de..9c7d130205edd 100644
--- a/drivers/mmc/host/sdhci-iproc.c
+++ b/drivers/mmc/host/sdhci-iproc.c
@@ -294,7 +294,7 @@ static const struct of_device_id sdhci_iproc_of_match[] = {
  };
  MODULE_DEVICE_TABLE(of, sdhci_iproc_of_match);
  
Would it better to compile this in if CONFIG_ACPI is defined instead?
#if CONFIG_ACPI
-static const struct acpi_device_id sdhci_iproc_acpi_ids[] = {
+static const struct acpi_device_id __maybe_unused sdhci_iproc_acpi_ids[] = {
  	{ .id = "BRCM5871", .driver_data = (kernel_ulong_t)&iproc_cygnus_data },
  	{ .id = "BRCM5872", .driver_data = (kernel_ulong_t)&iproc_data },
  	{ /* sentinel */ }

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