Patch "powerpc: Don't include lppaca.h in paca.h" has been added to the 5.15-stable tree

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This is a note to let you know that I've just added the patch titled

    powerpc: Don't include lppaca.h in paca.h

to the 5.15-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-don-t-include-lppaca.h-in-paca.h.patch
and it can be found in the queue-5.15 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit ed2da9ca78c27e5e43bf9e09e5854efdefaf67a1
Author: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Date:   Wed Aug 23 15:53:16 2023 +1000

    powerpc: Don't include lppaca.h in paca.h
    
    [ Upstream commit 1aa000667669fa855853decbb1c69e974d8ff716 ]
    
    By adding a forward declaration for struct lppaca we can untangle paca.h
    and lppaca.h. Also move get_lppaca() into lppaca.h for consistency.
    
    Add includes of lppaca.h to some files that need it.
    
    Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
    Link: https://msgid.link/20230823055317.751786-3-mpe@xxxxxxxxxxxxxx
    Stable-dep-of: eac030b22ea1 ("powerpc/pseries: Rework lppaca_shared_proc() to avoid DEBUG_PREEMPT")
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/arch/powerpc/include/asm/lppaca.h b/arch/powerpc/include/asm/lppaca.h
index c390ec377baed..5d509ba0550b5 100644
--- a/arch/powerpc/include/asm/lppaca.h
+++ b/arch/powerpc/include/asm/lppaca.h
@@ -130,6 +130,10 @@ static inline bool lppaca_shared_proc(struct lppaca *l)
 	return !!(l->__old_status & LPPACA_OLD_SHARED_PROC);
 }
 
+#ifdef CONFIG_PPC_PSERIES
+#define get_lppaca()	(get_paca()->lppaca_ptr)
+#endif
+
 /*
  * SLB shadow buffer structure as defined in the PAPR.  The save_area
  * contains adjacent ESID and VSID pairs for each shadowed SLB.  The
diff --git a/arch/powerpc/include/asm/paca.h b/arch/powerpc/include/asm/paca.h
index c5c9e25153152..02c089c5493ad 100644
--- a/arch/powerpc/include/asm/paca.h
+++ b/arch/powerpc/include/asm/paca.h
@@ -14,7 +14,6 @@
 
 #include <linux/string.h>
 #include <asm/types.h>
-#include <asm/lppaca.h>
 #include <asm/mmu.h>
 #include <asm/page.h>
 #ifdef CONFIG_PPC_BOOK3E
@@ -46,14 +45,11 @@ extern unsigned int debug_smp_processor_id(void); /* from linux/smp.h */
 #define get_paca()	local_paca
 #endif
 
-#ifdef CONFIG_PPC_PSERIES
-#define get_lppaca()	(get_paca()->lppaca_ptr)
-#endif
-
 #define get_slb_shadow()	(get_paca()->slb_shadow_ptr)
 
 struct task_struct;
 struct rtas_args;
+struct lppaca;
 
 /*
  * Defines the layout of the paca.
diff --git a/arch/powerpc/include/asm/paravirt.h b/arch/powerpc/include/asm/paravirt.h
index b325022ffa2b0..0a333ac716e0b 100644
--- a/arch/powerpc/include/asm/paravirt.h
+++ b/arch/powerpc/include/asm/paravirt.h
@@ -6,6 +6,7 @@
 #include <asm/smp.h>
 #ifdef CONFIG_PPC64
 #include <asm/paca.h>
+#include <asm/lppaca.h>
 #include <asm/hvcall.h>
 #endif
 
diff --git a/arch/powerpc/include/asm/plpar_wrappers.h b/arch/powerpc/include/asm/plpar_wrappers.h
index 83e0f701ebc67..217d8fb246354 100644
--- a/arch/powerpc/include/asm/plpar_wrappers.h
+++ b/arch/powerpc/include/asm/plpar_wrappers.h
@@ -9,6 +9,7 @@
 
 #include <asm/hvcall.h>
 #include <asm/paca.h>
+#include <asm/lppaca.h>
 #include <asm/page.h>
 
 static inline long poll_pending(void)
diff --git a/arch/powerpc/kvm/book3s_hv_ras.c b/arch/powerpc/kvm/book3s_hv_ras.c
index d4bca93b79f6d..6fa634599bc90 100644
--- a/arch/powerpc/kvm/book3s_hv_ras.c
+++ b/arch/powerpc/kvm/book3s_hv_ras.c
@@ -9,6 +9,7 @@
 #include <linux/kvm.h>
 #include <linux/kvm_host.h>
 #include <linux/kernel.h>
+#include <asm/lppaca.h>
 #include <asm/opal.h>
 #include <asm/mce.h>
 #include <asm/machdep.h>
diff --git a/arch/powerpc/mm/book3s64/slb.c b/arch/powerpc/mm/book3s64/slb.c
index f0037bcc47a0e..a4fd2901189c5 100644
--- a/arch/powerpc/mm/book3s64/slb.c
+++ b/arch/powerpc/mm/book3s64/slb.c
@@ -14,6 +14,7 @@
 #include <asm/mmu.h>
 #include <asm/mmu_context.h>
 #include <asm/paca.h>
+#include <asm/lppaca.h>
 #include <asm/ppc-opcode.h>
 #include <asm/cputable.h>
 #include <asm/cacheflush.h>
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index 3c085e1e5232e..8b5277c3b1476 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -59,6 +59,7 @@
 #ifdef CONFIG_PPC64
 #include <asm/hvcall.h>
 #include <asm/paca.h>
+#include <asm/lppaca.h>
 #endif
 
 #include "nonstdio.h"



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