[PATCH] [v2] mtd: cfi: allow building spi-intel standalone

Arnd Bergmann arnd at kernel.org
Tue Dec 20 06:13:34 PST 2022

From: Arnd Bergmann <arnd at arndb.de>

When MTD or MTD_CFI_GEOMETRY is disabled, the spi-intel driver
fails to build, as it includes the shared CFI header:

include/linux/mtd/cfi.h:62:2: error: #warning No CONFIG_MTD_CFI_Ix selected. No NOR chip support can work. [-Werror=cpp]
   62 | #warning No CONFIG_MTD_CFI_Ix selected. No NOR chip support can work.

linux/mtd/spi-nor.h does not actually need to include cfi.h, so
remove the inclusion here to fix the warning. This uncovers a
missing #include in spi-nor/core.c so add that there to
prevent a different build issue.

Fixes: e23e5a05d1fd ("mtd: spi-nor: intel-spi: Convert to SPI MEM")
Signed-off-by: Arnd Bergmann <arnd at arndb.de>
 drivers/mtd/spi-nor/core.c  | 1 +
 include/linux/mtd/spi-nor.h | 1 -
 2 files changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c
index d8703d7dfd0a..d67c926bca8b 100644
--- a/drivers/mtd/spi-nor/core.c
+++ b/drivers/mtd/spi-nor/core.c
@@ -10,6 +10,7 @@
 #include <linux/err.h>
 #include <linux/errno.h>
 #include <linux/module.h>
+#include <linux/delay.h>
 #include <linux/device.h>
 #include <linux/mutex.h>
 #include <linux/math64.h>
diff --git a/include/linux/mtd/spi-nor.h b/include/linux/mtd/spi-nor.h
index 25765556223a..a3f8cdca90c8 100644
--- a/include/linux/mtd/spi-nor.h
+++ b/include/linux/mtd/spi-nor.h
@@ -7,7 +7,6 @@
 #define __LINUX_MTD_SPI_NOR_H
 #include <linux/bitops.h>
-#include <linux/mtd/cfi.h>
 #include <linux/mtd/mtd.h>
 #include <linux/spi/spi-mem.h>

More information about the linux-mtd mailing list