linux-kernel - [PATCH] spi: cadence: Drop obsolete dependency on COMPILE

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Message-ID: <20221125083114.67e7f83c@endymion.delvare>
Date:   Fri, 25 Nov 2022 08:31:14 +0100
From:   Jean Delvare <jdelvare@...e.de>
To:     linux-spi@...r.kernel.org
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Mark Brown <broonie@...nel.org>
Subject: [PATCH] spi: cadence: Drop obsolete dependency on COMPILE_TEST

Since commit 0166dc11be91 ("of: make CONFIG_OF user selectable"), it
is possible to test-build any driver which depends on OF on any
architecture by explicitly selecting OF. Therefore depending on
COMPILE_TEST as an alternative is no longer needed.

It is actually better to always build such drivers with OF enabled,
so that the test builds are closer to how each driver will actually be
built on its intended target. Building them without OF may not test
much as the compiler will optimize out potentially large parts of the
code. In the worst case, this could even pop false positive warnings.
Dropping COMPILE_TEST here improves the quality of our testing and
avoids wasting time on non-existent issues.

Signed-off-by: Jean Delvare <jdelvare@...e.de>
Cc: Mark Brown <broonie@...nel.org>
---
 drivers/spi/Kconfig            |    2 +-
 drivers/spi/spi-cadence-xspi.c |    4 ----
 2 files changed, 1 insertion(+), 5 deletions(-)

--- linux-6.0.orig/drivers/spi/Kconfig
+++ linux-6.0/drivers/spi/Kconfig
@@ -241,7 +241,7 @@ config SPI_CADENCE_QUADSPI

 config SPI_CADENCE_XSPI
 	tristate "Cadence XSPI controller"
-	depends on (OF || COMPILE_TEST) && HAS_IOMEM
+	depends on OF && HAS_IOMEM
 	depends on SPI_MEM
 	help
 	  Enable support for the Cadence XSPI Flash controller.
--- linux-6.0.orig/drivers/spi/spi-cadence-xspi.c
+++ linux-6.0/drivers/spi/spi-cadence-xspi.c
@@ -609,7 +609,6 @@ static int cdns_xspi_probe(struct platfo
 	return 0;
 }

-#ifdef CONFIG_OF
 static const struct of_device_id cdns_xspi_of_match[] = {
 	{
 		.compatible = "cdns,xspi-nor",
@@ -617,9 +616,6 @@ static const struct of_device_id cdns_xs
 	{ /* end of table */}
 };
 MODULE_DEVICE_TABLE(of, cdns_xspi_of_match);
-#else
-#define cdns_xspi_of_match NULL
-#endif /* CONFIG_OF */

 static struct platform_driver cdns_xspi_platform_driver = {
 	.probe          = cdns_xspi_probe,

-- 
Jean Delvare
SUSE L3 Support