6.15-stable patches

added patches:
	powerpc-kernel-fix-ppc_save_regs-inclusion-in-build.patch

diff --git a/queue-6.15/powerpc-kernel-fix-ppc_save_regs-inclusion-in-build.patch b/queue-6.15/powerpc-kernel-fix-ppc_save_regs-inclusion-in-build.patch
new file mode 100644 (file)
index 0000000..d69b92e
--- /dev/null
+++ b/queue-6.15/powerpc-kernel-fix-ppc_save_regs-inclusion-in-build.patch
@@ -0,0 +1,47 @@
+From 93bd4a80efeb521314485a06d8c21157240497bb Mon Sep 17 00:00:00 2001
+From: Madhavan Srinivasan <maddy@linux.ibm.com>
+Date: Sun, 11 May 2025 09:41:11 +0530
+Subject: powerpc/kernel: Fix ppc_save_regs inclusion in build
+
+From: Madhavan Srinivasan <maddy@linux.ibm.com>
+
+commit 93bd4a80efeb521314485a06d8c21157240497bb upstream.
+
+Recent patch fixed an old commit
+'fc2a5a6161a2 ("powerpc/64s: ppc_save_regs is now needed for all 64s builds")'
+which is to include building of ppc_save_reg.c only when XMON
+and KEXEC_CORE and PPC_BOOK3S are enabled. This was valid, since
+ppc_save_regs was called only in replay_system_reset() of old
+irq.c which was under BOOK3S.
+
+But there has been multiple refactoring of irq.c and have
+added call to ppc_save_regs() from __replay_soft_interrupts
+-> replay_soft_interrupts which is part of irq_64.c included
+under CONFIG_PPC64. And since ppc_save_regs is called in
+CRASH_DUMP path as part of crash_setup_regs in kexec.h,
+CONFIG_PPC32 also needs it.
+
+So with this recent patch which enabled the building of
+ppc_save_regs.c caused a build break when none of these
+(XMON, KEXEC_CORE, BOOK3S) where enabled as part of config.
+Patch to enable building of ppc_save_regs.c by defaults.
+
+Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
+Link: https://patch.msgid.link/20250511041111.841158-1-maddy@linux.ibm.com
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ arch/powerpc/kernel/Makefile |    2 --
+ 1 file changed, 2 deletions(-)
+
+--- a/arch/powerpc/kernel/Makefile
++++ b/arch/powerpc/kernel/Makefile
+@@ -160,9 +160,7 @@ endif
+ 
+ obj64-$(CONFIG_PPC_TRANSACTIONAL_MEM) += tm.o
+ 
+-ifneq ($(CONFIG_XMON)$(CONFIG_KEXEC_CORE)$(CONFIG_PPC_BOOK3S),)
+ obj-y                         += ppc_save_regs.o
+-endif
+ 
+ obj-$(CONFIG_EPAPR_PARAVIRT)  += epapr_paravirt.o epapr_hcalls.o
+ obj-$(CONFIG_KVM_GUEST)               += kvm.o kvm_emul.o

diff --git a/queue-6.15/series b/queue-6.15/series
index c6e6a69c18a2747688d7e01fc1403faba24e1f46..ba8410060c5062ef5bd282a969ab9673aa5a0889 100644 (file)
--- a/queue-6.15/series
+++ b/queue-6.15/series
@@ -747,3 +747,4 @@ revert-mm-execmem-unify-early-execmem_cache-behaviour.patch
 alsa-usb-audio-kill-timer-properly-at-removal.patch
 alsa-usb-audio-add-implicit-feedback-quirk-for-rode-ai-1.patch
 hid-usbhid-eliminate-recurrent-out-of-bounds-bug-in-usbhid_parse.patch
+powerpc-kernel-fix-ppc_save_regs-inclusion-in-build.patch