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From:   Tiezhu Yang <yangtiezhu@loongson.cn>
To:     Huacai Chen <chenhuacai@kernel.org>,
        WANG Xuerui <kernel@xen0n.name>, Arnd Bergmann <arnd@arndb.de>,
        Andrew Morton <akpm@linux-foundation.org>,
        Masahiro Yamada <masahiroy@kernel.org>
Cc:     linux-kbuild@vger.kernel.org, loongarch@lists.linux.dev,
        linux-kernel@vger.kernel.org, loongson-kernel@lists.loongnix.cn
Subject: [PATCH v3 RESEND] checksyscalls: Ignore fstat to silence build warning on LoongArch
Date:   Tue,  7 Mar 2023 15:59:00 +0800
Message-Id: <1678175940-20872-1-git-send-email-yangtiezhu@loongson.cn>
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fstat is replaced by statx on the new architecture, so an exception
is added to the checksyscalls script to silence the following build
warning on LoongArch:

  CALL    scripts/checksyscalls.sh
<stdin>:569:2: warning: #warning syscall fstat not implemented [-Wcpp]

Suggested-by: WANG Xuerui <kernel@xen0n.name>
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
---

This warning still exists when build 6.3-rc1, it looks like
not so good, just resend the patch (2022-08-30):

https://lore.kernel.org/lkml/1661830021-8643-1-git-send-email-yangtiezhu@loongson.cn/

 scripts/checksyscalls.sh | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/scripts/checksyscalls.sh b/scripts/checksyscalls.sh
index f33e61a..1e5d2ee 100755
--- a/scripts/checksyscalls.sh
+++ b/scripts/checksyscalls.sh
@@ -114,7 +114,6 @@ cat << EOF
 #define __IGNORE_truncate
 #define __IGNORE_stat
 #define __IGNORE_lstat
-#define __IGNORE_fstat
 #define __IGNORE_fcntl
 #define __IGNORE_fadvise64
 #define __IGNORE_newfstatat
@@ -255,6 +254,9 @@ cat << EOF
 /* 64-bit ports never needed these, and new 32-bit ports can use statx */
 #define __IGNORE_fstat64
 #define __IGNORE_fstatat64
+
+/* Newer ports are not required to provide fstat in favor of statx */
+#define __IGNORE_fstat
 EOF
 }
 
-- 
2.1.0