4.4-stable review patch. If anyone has any objections, please let me know.
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From: Arnd Bergmann arnd@arndb.de
commit f5f92b36fbbb8ac7d70ff5fa39ec2637cce3094c upstream.
MTD allows compile-time configuration of the possible CFI geometry settings that are allowed by the kernel, but that includes a couple of invalid configurations, where no bank width or no interleave setting is allowed. These are then caught with a compile-time warning:
include/linux/mtd/cfi.h:76:2: warning: #warning No CONFIG_MTD_CFI_Ix selected. No NOR chip support can work. include/linux/mtd/map.h:145:2: warning: #warning "No CONFIG_MTD_MAP_BANK_WIDTH_xx selected. No NOR chip support can work"
This is a bit annoying for randconfig tests, and can be avoided if we change the Kconfig logic to always select the simplest configuration when no other one is enabled.
Signed-off-by: Arnd Bergmann arnd@arndb.de Signed-off-by: Brian Norris computersforpeace@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/mtd/chips/Kconfig | 4 ++++ 1 file changed, 4 insertions(+)
--- a/drivers/mtd/chips/Kconfig +++ b/drivers/mtd/chips/Kconfig @@ -67,6 +67,10 @@ endchoice config MTD_CFI_GEOMETRY bool "Specific CFI Flash geometry selection" depends on MTD_CFI_ADV_OPTIONS + select MTD_MAP_BANK_WIDTH_1 if !(MTD_MAP_BANK_WIDTH_2 || \ + MTD_MAP_BANK_WIDTH_4 || MTD_MAP_BANK_WIDTH_8 || \ + MTD_MAP_BANK_WIDTH_16 || MTD_MAP_BANK_WIDTH_32) + select MTD_CFI_I1 if !(MTD_CFI_I2 || MTD_CFI_I4 || MTD_CFI_I8) help This option does not affect the code directly, but will enable some other configuration options which would allow you to reduce