This is a note to let you know that I've just added the patch titled
powerpc: allow PPC_EARLY_DEBUG_CPM only when SERIAL_CPM=y
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
powerpc-allow-ppc_early_debug_cpm-only-when-serial_c.patch
and it can be found in the queue-4.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit a91683b99e01be25196c16b35ce56179ca1665f2
Author: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Date: Fri Jun 30 22:47:12 2023 -0700
powerpc: allow PPC_EARLY_DEBUG_CPM only when SERIAL_CPM=y
[ Upstream commit 39f49684036d24af800ff194c33c7b2653c591d7 ]
In a randconfig with CONFIG_SERIAL_CPM=m and
CONFIG_PPC_EARLY_DEBUG_CPM=y, there is a build error:
ERROR: modpost: "udbg_putc" [drivers/tty/serial/cpm_uart/cpm_uart.ko] undefined!
Prevent the build error by allowing PPC_EARLY_DEBUG_CPM only when
SERIAL_CPM=y.
Fixes: c374e00e17f1 ("[POWERPC] Add early debug console for CPM serial ports.")
Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Reviewed-by: Pali Rohár <pali@xxxxxxxxxx>
Reviewed-by: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Link: https://msgid.link/20230701054714.30512-1-rdunlap@xxxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug
index ffe0cf0f0bea2..923b3b794d13f 100644
--- a/arch/powerpc/Kconfig.debug
+++ b/arch/powerpc/Kconfig.debug
@@ -232,7 +232,7 @@ config PPC_EARLY_DEBUG_40x
config PPC_EARLY_DEBUG_CPM
bool "Early serial debugging for Freescale CPM-based serial ports"
- depends on SERIAL_CPM
+ depends on SERIAL_CPM=y
help
Select this to enable early debugging for Freescale chips
using a CPM-based serial port. This assumes that the bootwrapper
