[PATCH v1 03/12] powerpc/lib/code-patching: Use PPC_RAW_() macros

From: Christophe Leroy
Date: Thu May 20 2021 - 06:41:58 EST


Instead of open coding with PPC_INST_ defines, use
PPC_RAW_() macros. It improves readability.

Signed-off-by: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
---
arch/powerpc/include/asm/code-patching.h | 12 +++++-------
arch/powerpc/kernel/trace/ftrace.c | 2 +-
2 files changed, 6 insertions(+), 8 deletions(-)

diff --git a/arch/powerpc/include/asm/code-patching.h b/arch/powerpc/include/asm/code-patching.h
index f1d029bf906e..22957c6068c8 100644
--- a/arch/powerpc/include/asm/code-patching.h
+++ b/arch/powerpc/include/asm/code-patching.h
@@ -73,9 +73,9 @@ void __patch_exception(int exc, unsigned long addr);
#endif

#define OP_RT_RA_MASK 0xffff0000UL
-#define LIS_R2 (PPC_INST_ADDIS | __PPC_RT(R2))
-#define ADDIS_R2_R12 (PPC_INST_ADDIS | __PPC_RT(R2) | __PPC_RA(R12))
-#define ADDI_R2_R2 (PPC_INST_ADDI | __PPC_RT(R2) | __PPC_RA(R2))
+#define LIS_R2 (PPC_RAW_LIS(_R2, 0))
+#define ADDIS_R2_R12 (PPC_RAW_ADDIS(_R2, _R12, 0))
+#define ADDI_R2_R2 (PPC_RAW_ADDI(_R2, _R2, 0))


static inline unsigned long ppc_function_entry(void *func)
@@ -180,12 +180,10 @@ static inline unsigned long ppc_kallsyms_lookup_name(const char *name)
#define R2_STACK_OFFSET 40
#endif

-#define PPC_INST_LD_TOC (PPC_INST_LD | ___PPC_RT(__REG_R2) | \
- ___PPC_RA(__REG_R1) | R2_STACK_OFFSET)
+#define PPC_INST_LD_TOC PPC_RAW_LD(_R2, _R1, R2_STACK_OFFSET)

/* usually preceded by a mflr r0 */
-#define PPC_INST_STD_LR (PPC_INST_STD | ___PPC_RS(__REG_R0) | \
- ___PPC_RA(__REG_R1) | PPC_LR_STKOFF)
+#define PPC_INST_STD_LR PPC_RAW_STD(_R0, _R1, PPC_LR_STKOFF)
#endif /* CONFIG_PPC64 */

#endif /* _ASM_POWERPC_CODE_PATCHING_H */
diff --git a/arch/powerpc/kernel/trace/ftrace.c b/arch/powerpc/kernel/trace/ftrace.c
index ffe9537195aa..937220310f99 100644
--- a/arch/powerpc/kernel/trace/ftrace.c
+++ b/arch/powerpc/kernel/trace/ftrace.c
@@ -203,7 +203,7 @@ __ftrace_make_nop(struct module *mod,
}

if (!ppc_inst_equal(op, ppc_inst(PPC_INST_LD_TOC))) {
- pr_err("Expected %08x found %s\n", PPC_INST_LD_TOC, ppc_inst_as_str(op));
+ pr_err("Expected %08lx found %s\n", PPC_INST_LD_TOC, ppc_inst_as_str(op));
return -EINVAL;
}
#endif /* CONFIG_MPROFILE_KERNEL */
--
2.25.0