linux-kernel - linux-next: manual merge of the powerpc tree with the kbuild tree

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Message-ID: <20241113095228.4ac96776@canb.auug.org.au>
Date: Wed, 13 Nov 2024 09:52:28 +1100
From: Stephen Rothwell <sfr@...b.auug.org.au>
To: Michael Ellerman <mpe@...erman.id.au>, Masahiro Yamada
 <masahiroy@...nel.org>
Cc: PowerPC <linuxppc-dev@...ts.ozlabs.org>, Linux Kernel Mailing List
 <linux-kernel@...r.kernel.org>, Linux Next Mailing List
 <linux-next@...r.kernel.org>, Nathan Chancellor <nathan@...nel.org>
Subject: linux-next: manual merge of the powerpc tree with the kbuild tree

Hi all,

Today's linux-next merge of the powerpc tree got a conflict in:

  arch/powerpc/Makefile

between commit:

  de51342c5157 ("kbuild: add $(objtree)/ prefix to some in-kernel build artifacts")

from the kbuild tree and commit:

  bee08a9e6ab0 ("powerpc: Adjust adding stack protector flags to KBUILD_CLAGS for clang")

from the powerpc tree.

I fixed it up (see below) and can carry the fix as necessary. This
is now fixed as far as linux-next is concerned, but any non trivial
conflicts should be mentioned to your upstream maintainer when your tree
is submitted for merging.  You may also want to consider cooperating
with the maintainer of the conflicting tree to minimise any particularly
complex conflicts.

-- 
Cheers,
Stephen Rothwell

diff --cc arch/powerpc/Makefile
index 321b596d2550,99af7953e844..000000000000
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@@ -402,9 -403,11 +403,11 @@@ prepare: stack_protector_prepar
  PHONY += stack_protector_prepare
  stack_protector_prepare: prepare0
  ifdef CONFIG_PPC64
- 	$(eval KBUILD_CFLAGS += -mstack-protector-guard-offset=$(shell awk '{if ($$2 == "PACA_CANARY") print $$3;}' $(objtree)/include/generated/asm-offsets.h))
+ 	$(eval KBUILD_CFLAGS += -mstack-protector-guard=tls -mstack-protector-guard-reg=r13 \
 -				-mstack-protector-guard-offset=$(shell awk '{if ($$2 == "PACA_CANARY") print $$3;}' include/generated/asm-offsets.h))
++				-mstack-protector-guard-offset=$(shell awk '{if ($$2 == "PACA_CANARY") print $$3;}' $(objtree)/include/generated/asm-offsets.h))
  else
- 	$(eval KBUILD_CFLAGS += -mstack-protector-guard-offset=$(shell awk '{if ($$2 == "TASK_CANARY") print $$3;}' $(objtree)/include/generated/asm-offsets.h))
+ 	$(eval KBUILD_CFLAGS += -mstack-protector-guard=tls -mstack-protector-guard-reg=r2 \
 -				-mstack-protector-guard-offset=$(shell awk '{if ($$2 == "TASK_CANARY") print $$3;}' include/generated/asm-offsets.h))
++				-mstack-protector-guard-offset=$(shell awk '{if ($$2 == "TASK_CANARY") print $$3;}' $(objtree)/include/generated/asm-offsets.h))
  endif
  endif
  

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