linux-kernel - [PATCH v4 4/5] powerpc/inst: Move ppc_inst

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Message-Id: <7a63cb77d8ed7345e26ea8fab8e2472987632de5.1638186774.git.christophe.leroy@csgroup.eu>
Date:   Mon, 29 Nov 2021 12:53:04 +0100
From:   Christophe Leroy <christophe.leroy@...roup.eu>
To:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>
Cc:     Christophe Leroy <christophe.leroy@...roup.eu>,
        linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH v4 4/5] powerpc/inst: Move ppc_inst_t definition in asm/reg.h

Because of circular inclusion of asm/hw_breakpoint.h, we
need to move definition of asm/reg.h outside of inst.h
so that asm/hw_breakpoint.h gets it without including
asm/inst.h

Also remove asm/inst.h from asm/uprobes.h as it's not
needed anymore.

Signed-off-by: Christophe Leroy <christophe.leroy@...roup.eu>
---
v4: New to support inlining of copy_inst_from_kernel_nofault() in following patch.
---
 arch/powerpc/include/asm/hw_breakpoint.h |  1 -
 arch/powerpc/include/asm/inst.h          | 10 +---------
 arch/powerpc/include/asm/reg.h           | 12 ++++++++++++
 arch/powerpc/include/asm/uprobes.h       |  1 -
 4 files changed, 13 insertions(+), 11 deletions(-)

diff --git a/arch/powerpc/include/asm/hw_breakpoint.h b/arch/powerpc/include/asm/hw_breakpoint.h
index 88053d3c68e6..84d39fd42f71 100644
--- a/arch/powerpc/include/asm/hw_breakpoint.h
+++ b/arch/powerpc/include/asm/hw_breakpoint.h
@@ -10,7 +10,6 @@
 #define _PPC_BOOK3S_64_HW_BREAKPOINT_H
 
 #include <asm/cpu_has_feature.h>
-#include <asm/inst.h>
 
 #ifdef	__KERNEL__
 struct arch_hw_breakpoint {
diff --git a/arch/powerpc/include/asm/inst.h b/arch/powerpc/include/asm/inst.h
index 5c503816ebc0..86074e83d2a5 100644
--- a/arch/powerpc/include/asm/inst.h
+++ b/arch/powerpc/include/asm/inst.h
@@ -3,6 +3,7 @@
 #define _ASM_POWERPC_INST_H
 
 #include <asm/ppc-opcode.h>
+#include <asm/reg.h>
 
 #define ___get_user_instr(gu_op, dest, ptr)				\
 ({									\
@@ -35,13 +36,6 @@
  */
 
 #if defined(CONFIG_PPC64) || defined(__CHECKER__)
-typedef struct {
-	u32 val;
-#ifdef CONFIG_PPC64
-	u32 suffix;
-#endif
-} __packed ppc_inst_t;
-
 static inline u32 ppc_inst_val(ppc_inst_t x)
 {
 	return x.val;
@@ -50,8 +44,6 @@ static inline u32 ppc_inst_val(ppc_inst_t x)
 #define ppc_inst(x) ((ppc_inst_t){ .val = (x) })
 
 #else
-typedef u32 ppc_inst_t;
-
 static inline u32 ppc_inst_val(ppc_inst_t x)
 {
 	return x;
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index e9d27265253b..85501181f929 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -1366,6 +1366,18 @@
 
 /* Macros for setting and retrieving special purpose registers */
 #ifndef __ASSEMBLY__
+
+#if defined(CONFIG_PPC64) || defined(__CHECKER__)
+typedef struct {
+	u32 val;
+#ifdef CONFIG_PPC64
+	u32 suffix;
+#endif
+} __packed ppc_inst_t;
+#else
+typedef u32 ppc_inst_t;
+#endif
+
 #define mfmsr()		({unsigned long rval; \
 			asm volatile("mfmsr %0" : "=r" (rval) : \
 						: "memory"); rval;})
diff --git a/arch/powerpc/include/asm/uprobes.h b/arch/powerpc/include/asm/uprobes.h
index fe683371336f..a7ae1860115a 100644
--- a/arch/powerpc/include/asm/uprobes.h
+++ b/arch/powerpc/include/asm/uprobes.h
@@ -11,7 +11,6 @@
 
 #include <linux/notifier.h>
 #include <asm/probes.h>
-#include <asm/inst.h>
 
 typedef ppc_opcode_t uprobe_opcode_t;
 
-- 
2.33.1