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Date: Fri, 29 May 2020 09:24:06 +0800
From: Huacai Chen <chenhuacai@...il.com>
To: Tiezhu Yang <yangtiezhu@...ngson.cn>
Cc: Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
"open list:MIPS" <linux-mips@...r.kernel.org>,
LKML <linux-kernel@...r.kernel.org>,
Xuefeng Li <lixuefeng@...ngson.cn>
Subject: Re: [PATCH] MIPS: Fix build warning about "PTR_STR" redefined under CONFIG_TEST_PRINTF
Hi, Tiezhu,
On Thu, May 28, 2020 at 4:28 PM Tiezhu Yang <yangtiezhu@...ngson.cn> wrote:
>
> Replace PTR_STR with INST_PTR_STR to fix the following build warning when
> CONFIG_TEST_PRINTF is set:
>
> CC lib/test_printf.o
> lib/test_printf.c:214:0: warning: "PTR_STR" redefined
> #define PTR_STR "ffff0123456789ab"
> ^
> In file included from ./arch/mips/include/asm/dsemul.h:11:0,
> from ./arch/mips/include/asm/processor.h:22,
> from ./arch/mips/include/asm/thread_info.h:16,
> from ./include/linux/thread_info.h:38,
> from ./include/asm-generic/preempt.h:5,
> from ./arch/mips/include/generated/asm/preempt.h:1,
> from ./include/linux/preempt.h:78,
> from ./include/linux/spinlock.h:51,
> from ./include/linux/seqlock.h:36,
> from ./include/linux/time.h:6,
> from ./include/linux/stat.h:19,
> from ./include/linux/module.h:13,
> from lib/test_printf.c:10:
> ./arch/mips/include/asm/inst.h:20:0: note: this is the location of the previous definition
> #define PTR_STR ".dword"
> ^
>
> Fixes: e701656ec4db ("MIPS: inst.h: Stop including asm.h to avoid various build failures")
> Signed-off-by: Tiezhu Yang <yangtiezhu@...ngson.cn>
Thank you for catching this issue, but I think this is not the best
solution. Maciej suggest another solution, and I will send a patch to
fix it.
Huacai
> ---
> arch/mips/include/asm/inst.h | 180 +++++++++++++++++++++----------------------
> 1 file changed, 90 insertions(+), 90 deletions(-)
>
> diff --git a/arch/mips/include/asm/inst.h b/arch/mips/include/asm/inst.h
> index 6d74ba3..3ab1c6b 100644
> --- a/arch/mips/include/asm/inst.h
> +++ b/arch/mips/include/asm/inst.h
> @@ -14,10 +14,10 @@
> #include <uapi/asm/inst.h>
>
> #if (_MIPS_SZPTR == 32)
> -#define PTR_STR ".word"
> +#define INST_PTR_STR ".word"
> #endif
> #if (_MIPS_SZPTR == 64)
> -#define PTR_STR ".dword"
> +#define INST_PTR_STR ".dword"
> #endif
>
> /* HACHACHAHCAHC ... */
> @@ -108,8 +108,8 @@ do { \
> "j\t3b\n\t" \
> ".previous\n\t" \
> ".section\t__ex_table,\"a\"\n\t" \
> - PTR_STR"\t1b, 4b\n\t" \
> - PTR_STR"\t2b, 4b\n\t" \
> + INST_PTR_STR"\t1b, 4b\n\t" \
> + INST_PTR_STR"\t2b, 4b\n\t" \
> ".previous" \
> : "=&r" (value), "=r" (res) \
> : "r" (addr), "i" (-EFAULT)); \
> @@ -129,8 +129,8 @@ do { \
> "j\t3b\n\t" \
> ".previous\n\t" \
> ".section\t__ex_table,\"a\"\n\t" \
> - PTR_STR"\t1b, 4b\n\t" \
> - PTR_STR"\t2b, 4b\n\t" \
> + INST_PTR_STR"\t1b, 4b\n\t" \
> + INST_PTR_STR"\t2b, 4b\n\t" \
> ".previous" \
> : "=&r" (value), "=r" (res) \
> : "r" (addr), "i" (-EFAULT)); \
> @@ -162,10 +162,10 @@ do { \
> "j\t10b\n\t" \
> ".previous\n\t" \
> ".section\t__ex_table,\"a\"\n\t" \
> - PTR_STR"\t1b, 11b\n\t" \
> - PTR_STR"\t2b, 11b\n\t" \
> - PTR_STR"\t3b, 11b\n\t" \
> - PTR_STR"\t4b, 11b\n\t" \
> + INST_PTR_STR"\t1b, 11b\n\t" \
> + INST_PTR_STR"\t2b, 11b\n\t" \
> + INST_PTR_STR"\t3b, 11b\n\t" \
> + INST_PTR_STR"\t4b, 11b\n\t" \
> ".previous" \
> : "=&r" (value), "=r" (res) \
> : "r" (addr), "i" (-EFAULT)); \
> @@ -190,8 +190,8 @@ do { \
> "j\t3b\n\t" \
> ".previous\n\t" \
> ".section\t__ex_table,\"a\"\n\t" \
> - PTR_STR"\t1b, 4b\n\t" \
> - PTR_STR"\t2b, 4b\n\t" \
> + INST_PTR_STR"\t1b, 4b\n\t" \
> + INST_PTR_STR"\t2b, 4b\n\t" \
> ".previous" \
> : "=&r" (value), "=r" (res) \
> : "r" (addr), "i" (-EFAULT)); \
> @@ -213,8 +213,8 @@ do { \
> "j\t3b\n\t" \
> ".previous\n\t" \
> ".section\t__ex_table,\"a\"\n\t" \
> - PTR_STR"\t1b, 4b\n\t" \
> - PTR_STR"\t2b, 4b\n\t" \
> + INST_PTR_STR"\t1b, 4b\n\t" \
> + INST_PTR_STR"\t2b, 4b\n\t" \
> ".previous" \
> : "=&r" (value), "=r" (res) \
> : "r" (addr), "i" (-EFAULT)); \
> @@ -233,8 +233,8 @@ do { \
> "j\t3b\n\t" \
> ".previous\n\t" \
> ".section\t__ex_table,\"a\"\n\t" \
> - PTR_STR"\t1b, 4b\n\t" \
> - PTR_STR"\t2b, 4b\n\t" \
> + INST_PTR_STR"\t1b, 4b\n\t" \
> + INST_PTR_STR"\t2b, 4b\n\t" \
> ".previous" \
> : "=&r" (value), "=r" (res) \
> : "r" (addr), "i" (-EFAULT)); \
> @@ -266,10 +266,10 @@ do { \
> "j\t10b\n\t" \
> ".previous\n\t" \
> ".section\t__ex_table,\"a\"\n\t" \
> - PTR_STR"\t1b, 11b\n\t" \
> - PTR_STR"\t2b, 11b\n\t" \
> - PTR_STR"\t3b, 11b\n\t" \
> - PTR_STR"\t4b, 11b\n\t" \
> + INST_PTR_STR"\t1b, 11b\n\t" \
> + INST_PTR_STR"\t2b, 11b\n\t" \
> + INST_PTR_STR"\t3b, 11b\n\t" \
> + INST_PTR_STR"\t4b, 11b\n\t" \
> ".previous" \
> : "=&r" (value), "=r" (res) \
> : "r" (addr), "i" (-EFAULT)); \
> @@ -311,14 +311,14 @@ do { \
> "j\t10b\n\t" \
> ".previous\n\t" \
> ".section\t__ex_table,\"a\"\n\t" \
> - PTR_STR"\t1b, 11b\n\t" \
> - PTR_STR"\t2b, 11b\n\t" \
> - PTR_STR"\t3b, 11b\n\t" \
> - PTR_STR"\t4b, 11b\n\t" \
> - PTR_STR"\t5b, 11b\n\t" \
> - PTR_STR"\t6b, 11b\n\t" \
> - PTR_STR"\t7b, 11b\n\t" \
> - PTR_STR"\t8b, 11b\n\t" \
> + INST_PTR_STR"\t1b, 11b\n\t" \
> + INST_PTR_STR"\t2b, 11b\n\t" \
> + INST_PTR_STR"\t3b, 11b\n\t" \
> + INST_PTR_STR"\t4b, 11b\n\t" \
> + INST_PTR_STR"\t5b, 11b\n\t" \
> + INST_PTR_STR"\t6b, 11b\n\t" \
> + INST_PTR_STR"\t7b, 11b\n\t" \
> + INST_PTR_STR"\t8b, 11b\n\t" \
> ".previous" \
> : "=&r" (value), "=r" (res) \
> : "r" (addr), "i" (-EFAULT)); \
> @@ -343,8 +343,8 @@ do { \
> "j\t3b\n\t" \
> ".previous\n\t" \
> ".section\t__ex_table,\"a\"\n\t" \
> - PTR_STR"\t1b, 4b\n\t" \
> - PTR_STR"\t2b, 4b\n\t" \
> + INST_PTR_STR"\t1b, 4b\n\t" \
> + INST_PTR_STR"\t2b, 4b\n\t" \
> ".previous" \
> : "=r" (res) \
> : "r" (value), "r" (addr), "i" (-EFAULT));\
> @@ -364,8 +364,8 @@ do { \
> "j\t3b\n\t" \
> ".previous\n\t" \
> ".section\t__ex_table,\"a\"\n\t" \
> - PTR_STR"\t1b, 4b\n\t" \
> - PTR_STR"\t2b, 4b\n\t" \
> + INST_PTR_STR"\t1b, 4b\n\t" \
> + INST_PTR_STR"\t2b, 4b\n\t" \
> ".previous" \
> : "=r" (res) \
> : "r" (value), "r" (addr), "i" (-EFAULT)); \
> @@ -384,8 +384,8 @@ do { \
> "j\t3b\n\t" \
> ".previous\n\t" \
> ".section\t__ex_table,\"a\"\n\t" \
> - PTR_STR"\t1b, 4b\n\t" \
> - PTR_STR"\t2b, 4b\n\t" \
> + INST_PTR_STR"\t1b, 4b\n\t" \
> + INST_PTR_STR"\t2b, 4b\n\t" \
> ".previous" \
> : "=r" (res) \
> : "r" (value), "r" (addr), "i" (-EFAULT)); \
> @@ -413,10 +413,10 @@ do { \
> "j\t10b\n\t" \
> ".previous\n\t" \
> ".section\t__ex_table,\"a\"\n\t" \
> - PTR_STR"\t1b, 11b\n\t" \
> - PTR_STR"\t2b, 11b\n\t" \
> - PTR_STR"\t3b, 11b\n\t" \
> - PTR_STR"\t4b, 11b\n\t" \
> + INST_PTR_STR"\t1b, 11b\n\t" \
> + INST_PTR_STR"\t2b, 11b\n\t" \
> + INST_PTR_STR"\t3b, 11b\n\t" \
> + INST_PTR_STR"\t4b, 11b\n\t" \
> ".previous" \
> : "=&r" (res) \
> : "r" (value), "r" (addr), "i" (-EFAULT) \
> @@ -453,14 +453,14 @@ do { \
> "j\t10b\n\t" \
> ".previous\n\t" \
> ".section\t__ex_table,\"a\"\n\t" \
> - PTR_STR"\t1b, 11b\n\t" \
> - PTR_STR"\t2b, 11b\n\t" \
> - PTR_STR"\t3b, 11b\n\t" \
> - PTR_STR"\t4b, 11b\n\t" \
> - PTR_STR"\t5b, 11b\n\t" \
> - PTR_STR"\t6b, 11b\n\t" \
> - PTR_STR"\t7b, 11b\n\t" \
> - PTR_STR"\t8b, 11b\n\t" \
> + INST_PTR_STR"\t1b, 11b\n\t" \
> + INST_PTR_STR"\t2b, 11b\n\t" \
> + INST_PTR_STR"\t3b, 11b\n\t" \
> + INST_PTR_STR"\t4b, 11b\n\t" \
> + INST_PTR_STR"\t5b, 11b\n\t" \
> + INST_PTR_STR"\t6b, 11b\n\t" \
> + INST_PTR_STR"\t7b, 11b\n\t" \
> + INST_PTR_STR"\t8b, 11b\n\t" \
> ".previous" \
> : "=&r" (res) \
> : "r" (value), "r" (addr), "i" (-EFAULT) \
> @@ -486,8 +486,8 @@ do { \
> "j\t3b\n\t" \
> ".previous\n\t" \
> ".section\t__ex_table,\"a\"\n\t" \
> - PTR_STR"\t1b, 4b\n\t" \
> - PTR_STR"\t2b, 4b\n\t" \
> + INST_PTR_STR"\t1b, 4b\n\t" \
> + INST_PTR_STR"\t2b, 4b\n\t" \
> ".previous" \
> : "=&r" (value), "=r" (res) \
> : "r" (addr), "i" (-EFAULT)); \
> @@ -507,8 +507,8 @@ do { \
> "j\t3b\n\t" \
> ".previous\n\t" \
> ".section\t__ex_table,\"a\"\n\t" \
> - PTR_STR"\t1b, 4b\n\t" \
> - PTR_STR"\t2b, 4b\n\t" \
> + INST_PTR_STR"\t1b, 4b\n\t" \
> + INST_PTR_STR"\t2b, 4b\n\t" \
> ".previous" \
> : "=&r" (value), "=r" (res) \
> : "r" (addr), "i" (-EFAULT)); \
> @@ -540,10 +540,10 @@ do { \
> "j\t10b\n\t" \
> ".previous\n\t" \
> ".section\t__ex_table,\"a\"\n\t" \
> - PTR_STR"\t1b, 11b\n\t" \
> - PTR_STR"\t2b, 11b\n\t" \
> - PTR_STR"\t3b, 11b\n\t" \
> - PTR_STR"\t4b, 11b\n\t" \
> + INST_PTR_STR"\t1b, 11b\n\t" \
> + INST_PTR_STR"\t2b, 11b\n\t" \
> + INST_PTR_STR"\t3b, 11b\n\t" \
> + INST_PTR_STR"\t4b, 11b\n\t" \
> ".previous" \
> : "=&r" (value), "=r" (res) \
> : "r" (addr), "i" (-EFAULT)); \
> @@ -569,8 +569,8 @@ do { \
> "j\t3b\n\t" \
> ".previous\n\t" \
> ".section\t__ex_table,\"a\"\n\t" \
> - PTR_STR"\t1b, 4b\n\t" \
> - PTR_STR"\t2b, 4b\n\t" \
> + INST_PTR_STR"\t1b, 4b\n\t" \
> + INST_PTR_STR"\t2b, 4b\n\t" \
> ".previous" \
> : "=&r" (value), "=r" (res) \
> : "r" (addr), "i" (-EFAULT)); \
> @@ -592,8 +592,8 @@ do { \
> "j\t3b\n\t" \
> ".previous\n\t" \
> ".section\t__ex_table,\"a\"\n\t" \
> - PTR_STR"\t1b, 4b\n\t" \
> - PTR_STR"\t2b, 4b\n\t" \
> + INST_PTR_STR"\t1b, 4b\n\t" \
> + INST_PTR_STR"\t2b, 4b\n\t" \
> ".previous" \
> : "=&r" (value), "=r" (res) \
> : "r" (addr), "i" (-EFAULT)); \
> @@ -612,8 +612,8 @@ do { \
> "j\t3b\n\t" \
> ".previous\n\t" \
> ".section\t__ex_table,\"a\"\n\t" \
> - PTR_STR"\t1b, 4b\n\t" \
> - PTR_STR"\t2b, 4b\n\t" \
> + INST_PTR_STR"\t1b, 4b\n\t" \
> + INST_PTR_STR"\t2b, 4b\n\t" \
> ".previous" \
> : "=&r" (value), "=r" (res) \
> : "r" (addr), "i" (-EFAULT)); \
> @@ -645,10 +645,10 @@ do { \
> "j\t10b\n\t" \
> ".previous\n\t" \
> ".section\t__ex_table,\"a\"\n\t" \
> - PTR_STR"\t1b, 11b\n\t" \
> - PTR_STR"\t2b, 11b\n\t" \
> - PTR_STR"\t3b, 11b\n\t" \
> - PTR_STR"\t4b, 11b\n\t" \
> + INST_PTR_STR"\t1b, 11b\n\t" \
> + INST_PTR_STR"\t2b, 11b\n\t" \
> + INST_PTR_STR"\t3b, 11b\n\t" \
> + INST_PTR_STR"\t4b, 11b\n\t" \
> ".previous" \
> : "=&r" (value), "=r" (res) \
> : "r" (addr), "i" (-EFAULT)); \
> @@ -690,14 +690,14 @@ do { \
> "j\t10b\n\t" \
> ".previous\n\t" \
> ".section\t__ex_table,\"a\"\n\t" \
> - PTR_STR"\t1b, 11b\n\t" \
> - PTR_STR"\t2b, 11b\n\t" \
> - PTR_STR"\t3b, 11b\n\t" \
> - PTR_STR"\t4b, 11b\n\t" \
> - PTR_STR"\t5b, 11b\n\t" \
> - PTR_STR"\t6b, 11b\n\t" \
> - PTR_STR"\t7b, 11b\n\t" \
> - PTR_STR"\t8b, 11b\n\t" \
> + INST_PTR_STR"\t1b, 11b\n\t" \
> + INST_PTR_STR"\t2b, 11b\n\t" \
> + INST_PTR_STR"\t3b, 11b\n\t" \
> + INST_PTR_STR"\t4b, 11b\n\t" \
> + INST_PTR_STR"\t5b, 11b\n\t" \
> + INST_PTR_STR"\t6b, 11b\n\t" \
> + INST_PTR_STR"\t7b, 11b\n\t" \
> + INST_PTR_STR"\t8b, 11b\n\t" \
> ".previous" \
> : "=&r" (value), "=r" (res) \
> : "r" (addr), "i" (-EFAULT)); \
> @@ -720,8 +720,8 @@ do { \
> "j\t3b\n\t" \
> ".previous\n\t" \
> ".section\t__ex_table,\"a\"\n\t" \
> - PTR_STR"\t1b, 4b\n\t" \
> - PTR_STR"\t2b, 4b\n\t" \
> + INST_PTR_STR"\t1b, 4b\n\t" \
> + INST_PTR_STR"\t2b, 4b\n\t" \
> ".previous" \
> : "=r" (res) \
> : "r" (value), "r" (addr), "i" (-EFAULT));\
> @@ -741,8 +741,8 @@ do { \
> "j\t3b\n\t" \
> ".previous\n\t" \
> ".section\t__ex_table,\"a\"\n\t" \
> - PTR_STR"\t1b, 4b\n\t" \
> - PTR_STR"\t2b, 4b\n\t" \
> + INST_PTR_STR"\t1b, 4b\n\t" \
> + INST_PTR_STR"\t2b, 4b\n\t" \
> ".previous" \
> : "=r" (res) \
> : "r" (value), "r" (addr), "i" (-EFAULT)); \
> @@ -761,8 +761,8 @@ do { \
> "j\t3b\n\t" \
> ".previous\n\t" \
> ".section\t__ex_table,\"a\"\n\t" \
> - PTR_STR"\t1b, 4b\n\t" \
> - PTR_STR"\t2b, 4b\n\t" \
> + INST_PTR_STR"\t1b, 4b\n\t" \
> + INST_PTR_STR"\t2b, 4b\n\t" \
> ".previous" \
> : "=r" (res) \
> : "r" (value), "r" (addr), "i" (-EFAULT)); \
> @@ -791,10 +791,10 @@ do { \
> "j\t10b\n\t" \
> ".previous\n\t" \
> ".section\t__ex_table,\"a\"\n\t" \
> - PTR_STR"\t1b, 11b\n\t" \
> - PTR_STR"\t2b, 11b\n\t" \
> - PTR_STR"\t3b, 11b\n\t" \
> - PTR_STR"\t4b, 11b\n\t" \
> + INST_PTR_STR"\t1b, 11b\n\t" \
> + INST_PTR_STR"\t2b, 11b\n\t" \
> + INST_PTR_STR"\t3b, 11b\n\t" \
> + INST_PTR_STR"\t4b, 11b\n\t" \
> ".previous" \
> : "=&r" (res) \
> : "r" (value), "r" (addr), "i" (-EFAULT) \
> @@ -831,14 +831,14 @@ do { \
> "j\t10b\n\t" \
> ".previous\n\t" \
> ".section\t__ex_table,\"a\"\n\t" \
> - PTR_STR"\t1b, 11b\n\t" \
> - PTR_STR"\t2b, 11b\n\t" \
> - PTR_STR"\t3b, 11b\n\t" \
> - PTR_STR"\t4b, 11b\n\t" \
> - PTR_STR"\t5b, 11b\n\t" \
> - PTR_STR"\t6b, 11b\n\t" \
> - PTR_STR"\t7b, 11b\n\t" \
> - PTR_STR"\t8b, 11b\n\t" \
> + INST_PTR_STR"\t1b, 11b\n\t" \
> + INST_PTR_STR"\t2b, 11b\n\t" \
> + INST_PTR_STR"\t3b, 11b\n\t" \
> + INST_PTR_STR"\t4b, 11b\n\t" \
> + INST_PTR_STR"\t5b, 11b\n\t" \
> + INST_PTR_STR"\t6b, 11b\n\t" \
> + INST_PTR_STR"\t7b, 11b\n\t" \
> + INST_PTR_STR"\t8b, 11b\n\t" \
> ".previous" \
> : "=&r" (res) \
> : "r" (value), "r" (addr), "i" (-EFAULT) \
> --
> 2.1.0
>
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