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From: "Paul E. McKenney" <paulmck@kernel.org>
To: linux-kernel@vger.kernel.org
Cc: gwml@vger.gnuweeb.org,
kernel-team@fb.com,
w@lwt.eu,
Willy Tarreau <w@1wt.eu>,
"Paul E . McKenney" <paulmck@kernel.org>
Subject: [PATCH nolibc 02/18] tools/nolibc: fix build warning in sys_mmap() when my_syscall6 is not defined
Date: Wed, 31 Aug 2022 11:21:32 -0700
Message-Id: <20220831182148.2698489-4-paulmck@kernel.org>
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From: Willy Tarreau <w@1wt.eu>
We return -ENOSYS when there's no syscall6() operation, but we must cast
it to void* to avoid a warning.
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
---
tools/include/nolibc/sys.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/include/nolibc/sys.h b/tools/include/nolibc/sys.h
index 08491070387bc..b8c96878c9ce0 100644
--- a/tools/include/nolibc/sys.h
+++ b/tools/include/nolibc/sys.h
@@ -692,7 +692,7 @@ void *sys_mmap(void *addr, size_t length, int prot, int flags, int fd,
{
#ifndef my_syscall6
/* Function not implemented. */
- return -ENOSYS;
+ return (void *)-ENOSYS;
#else
int n;
--
2.31.1.189.g2e36527f23