On 4/3/24 03:06, Arnd Bergmann wrote:
From: Arnd Bergmann <arnd@xxxxxxxx>
When both ACPI and OF are disabled, the dev_vdata variable is unused:
drivers/crypto/ccp/sp-platform.c:33:34: error: unused variable 'dev_vdata' [-Werror,-Wunused-const-variable]
This is not a useful configuration, and there is not much point in saving
a few bytes when only one of the two is enabled, so just remove all
these ifdef checks and rely on of_match_node() and acpi_match_device()
returning NULL when these subsystems are disabled.
Fixes: 6c5063434098 ("crypto: ccp - Add ACPI support")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Would using __maybe_unused on dev_vdata be the safer, easier choice?
Either way, I don't think removing the #ifdefs will pose a problem, so:
Acked-by: Tom Lendacky <thomas.lendacky@xxxxxxx>
---
drivers/crypto/ccp/sp-platform.c | 14 ++------------
1 file changed, 2 insertions(+), 12 deletions(-)
diff --git a/drivers/crypto/ccp/sp-platform.c b/drivers/crypto/ccp/sp-platform.c
index 473301237760..ff6ceb4feee0 100644
--- a/drivers/crypto/ccp/sp-platform.c
+++ b/drivers/crypto/ccp/sp-platform.c
@@ -39,44 +39,38 @@ static const struct sp_dev_vdata dev_vdata[] = {
},
};
-#ifdef CONFIG_ACPI
static const struct acpi_device_id sp_acpi_match[] = {
{ "AMDI0C00", (kernel_ulong_t)&dev_vdata[0] },
{ },
};
MODULE_DEVICE_TABLE(acpi, sp_acpi_match);
-#endif
-#ifdef CONFIG_OF
static const struct of_device_id sp_of_match[] = {
{ .compatible = "amd,ccp-seattle-v1a",
.data = (const void *)&dev_vdata[0] },
{ },
};
MODULE_DEVICE_TABLE(of, sp_of_match);
-#endif
static struct sp_dev_vdata *sp_get_of_version(struct platform_device *pdev)
{
-#ifdef CONFIG_OF
const struct of_device_id *match;
match = of_match_node(sp_of_match, pdev->dev.of_node);
if (match && match->data)
return (struct sp_dev_vdata *)match->data;
-#endif
+
return NULL;
}
static struct sp_dev_vdata *sp_get_acpi_version(struct platform_device *pdev)
{
-#ifdef CONFIG_ACPI
const struct acpi_device_id *match;
match = acpi_match_device(sp_acpi_match, &pdev->dev);
if (match && match->driver_data)
return (struct sp_dev_vdata *)match->driver_data;
-#endif
+
return NULL;
}
@@ -212,12 +206,8 @@ static int sp_platform_resume(struct platform_device *pdev)
static struct platform_driver sp_platform_driver = {
.driver = {
.name = "ccp",
-#ifdef CONFIG_ACPI
.acpi_match_table = sp_acpi_match,
-#endif
-#ifdef CONFIG_OF
.of_match_table = sp_of_match,
-#endif
},
.probe = sp_platform_probe,
.remove_new = sp_platform_remove,
