This is a note to let you know that I've just added the patch titled
powerpc/32: Do not allow selection of e5500 or e6500 CPUs on PPC32
to the 5.4-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-32-do-not-allow-selection-of-e5500-or-e6500-.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 0c1fa51278457b31c48fc025fdb4262576b28c78
Author: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
Date: Mon Jul 11 16:19:29 2022 +0200
powerpc/32: Do not allow selection of e5500 or e6500 CPUs on PPC32
[ Upstream commit 9be013b2a9ecb29b5168e4b9db0e48ed53acf37c ]
Commit 0e00a8c9fd92 ("powerpc: Allow CPU selection also on PPC32")
enlarged the CPU selection logic to PPC32 by removing depend to
PPC64, and failed to restrict that depend to E5500_CPU and E6500_CPU.
Fortunately that got unnoticed because -mcpu=8540 will override the
-mcpu=e500mc64 or -mpcu=e6500 as they are ealier, but that's
fragile and may no be right in the future.
Add back the depend PPC64 on E5500_CPU and E6500_CPU.
Fixes: 0e00a8c9fd92 ("powerpc: Allow CPU selection also on PPC32")
Signed-off-by: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/8abab4888da69ff78b73a56f64d9678a7bf684e9.1657549153.git.christophe.leroy@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index f0330ce498d1..a9b20aa1dfd4 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -151,11 +151,11 @@ config POWER9_CPU
config E5500_CPU
bool "Freescale e5500"
- depends on E500
+ depends on PPC64 && E500
config E6500_CPU
bool "Freescale e6500"
- depends on E500
+ depends on PPC64 && E500
config 860_CPU
bool "8xx family"
