[PATCH] scsi: ufs: Wrap Universal Flash Storage drivers in SCSI_UFSHCD

[PATCH] scsi: ufs: Wrap Universal Flash Storage drivers in SCSI_UFSHCD

[Geert Uytterhoeven]

The build only descends into drivers/scsi/ufs/ if SCSI_UFSHCD is
enabled.  Hence all later config symbols should depend on SCSI_UFSHCD,
to prevent asking the user about config symbols for driver code that
won't be build anyway.  Unfortunately not all symbols have that
dependency.

Fix this by wrapping them all into a big if/endif block.  Remove the now
superfluous explicit dependencies on SCSI_UFSHCD from all symbols that
already had it.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
Exposed by commit 60c98a87fcaad9e7 ("scsi: ufs: core: SCSI_UFS_HWMON
depends on HWMON=y").
---
 drivers/scsi/ufs/Kconfig | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/scsi/ufs/Kconfig b/drivers/scsi/ufs/Kconfig
index b2521b830be72fa5..a43f4d947f1bf8a8 100644
--- a/drivers/scsi/ufs/Kconfig
+++ b/drivers/scsi/ufs/Kconfig
@@ -50,9 +50,11 @@ config SCSI_UFSHCD
 	  However, do not compile this as a module if your root file system
 	  (the one containing the directory /) is located on a UFS device.
 
+if SCSI_UFSHCD
+
 config SCSI_UFSHCD_PCI
 	tristate "PCI bus based UFS Controller support"
-	depends on SCSI_UFSHCD && PCI
+	depends on PCI
 	help
 	  This selects the PCI UFS Host Controller Interface. Select this if
 	  you have UFS Host Controller with PCI Interface.
@@ -71,7 +73,6 @@ config SCSI_UFS_DWC_TC_PCI
 
 config SCSI_UFSHCD_PLATFORM
 	tristate "Platform bus based UFS Controller support"
-	depends on SCSI_UFSHCD
 	depends on HAS_IOMEM
 	help
 	  This selects the UFS host controller support. Select this if
@@ -147,7 +148,6 @@ config SCSI_UFS_TI_J721E
 
 config SCSI_UFS_BSG
 	bool "Universal Flash Storage BSG device node"
-	depends on SCSI_UFSHCD
 	select BLK_DEV_BSGLIB
 	help
 	  Universal Flash Storage (UFS) is SCSI transport specification for
@@ -177,7 +177,7 @@ config SCSI_UFS_EXYNOS
 
 config SCSI_UFS_CRYPTO
 	bool "UFS Crypto Engine Support"
-	depends on SCSI_UFSHCD && BLK_INLINE_ENCRYPTION
+	depends on BLK_INLINE_ENCRYPTION
 	help
 	  Enable Crypto Engine Support in UFS.
 	  Enabling this makes it possible for the kernel to use the crypto
@@ -186,7 +186,6 @@ config SCSI_UFS_CRYPTO
 
 config SCSI_UFS_HPB
 	bool "Support UFS Host Performance Booster"
-	depends on SCSI_UFSHCD
 	help
 	  The UFS HPB feature improves random read performance. It caches
 	  L2P (logical to physical) map of UFS to host DRAM. The driver uses HPB
@@ -195,7 +194,7 @@ config SCSI_UFS_HPB
 
 config SCSI_UFS_FAULT_INJECTION
 	bool "UFS Fault Injection Support"
-	depends on SCSI_UFSHCD && FAULT_INJECTION
+	depends on FAULT_INJECTION
 	help
 	  Enable fault injection support in the UFS driver. This makes it easier
 	  to test the UFS error handler and abort handler.
@@ -208,3 +207,5 @@ config SCSI_UFS_HWMON
 	  a hardware monitoring device will be created for the UFS device.
 
 	  If unsure, say N.
+
+endif
-- 
2.25.1

Re: [PATCH] scsi: ufs: Wrap Universal Flash Storage drivers in SCSI_UFSHCD

[Martin K. Petersen]

Geert,

> Fix this by wrapping them all into a big if/endif block.  Remove the
> now superfluous explicit dependencies on SCSI_UFSHCD from all symbols
> that already had it.

Applied to 5.17/scsi-staging, thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering

Re: [PATCH] scsi: ufs: Wrap Universal Flash Storage drivers in SCSI_UFSHCD

[Martin K. Petersen]

On Sat, 6 Nov 2021 17:46:50 +0100, Geert Uytterhoeven wrote:

> The build only descends into drivers/scsi/ufs/ if SCSI_UFSHCD is
> enabled.  Hence all later config symbols should depend on SCSI_UFSHCD,
> to prevent asking the user about config symbols for driver code that
> won't be build anyway.  Unfortunately not all symbols have that
> dependency.
> 
> Fix this by wrapping them all into a big if/endif block.  Remove the now
> superfluous explicit dependencies on SCSI_UFSHCD from all symbols that
> already had it.
> 
> [...]

Applied to 5.17/scsi-queue, thanks!

[1/1] scsi: ufs: Wrap Universal Flash Storage drivers in SCSI_UFSHCD
      https://git.kernel.org/mkp/scsi/c/d28a78537d1d

-- 
Martin K. Petersen	Oracle Linux Engineering