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SubjectRe: spinlock.c:306:9: error: implicit declaration of function '__raw_write_lock_nested'
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On 11/23/21 5:38 AM, Naresh Kamboju wrote:
> While building Linux next 20211123 tag for sh with gcc-11
> following warnings / errors noticed.
>
> make --silent --keep-going --jobs=8
> O=/home/tuxbuild/.cache/tuxmake/builds/current ARCH=sh
> CROSS_COMPILE=sh4-linux-gnu- 'CC=sccache sh4-linux-gnu-gcc'
> 'HOSTCC=sccache gcc'
> Generating include/generated/machtypes.h
> <stdin>:1517:2: warning: #warning syscall clone3 not implemented [-Wcpp]
> <stdin>:1559:2: warning: #warning syscall futex_waitv not implemented [-Wcpp]

Here's a fix for those first two:

From: Rob Landley <rob@landley.net>

Wire up clone3 and futex_waitv syscalls for arch/sh

Signed-off-by: Rob Landley <rob@landley.net>
---

arch/sh/kernel/syscalls/syscall.tbl | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/sh/kernel/syscalls/syscall.tbl
b/arch/sh/kernel/syscalls/syscall.tbl
index 208f131659c5..65c3a94bff48 100644
--- a/arch/sh/kernel/syscalls/syscall.tbl
+++ b/arch/sh/kernel/syscalls/syscall.tbl
@@ -437,7 +437,7 @@
432 common fsmount sys_fsmount
433 common fspick sys_fspick
434 common pidfd_open sys_pidfd_open
-# 435 reserved for clone3
+435 common clone3 sys_clone3
436 common close_range sys_close_range
437 common openat2 sys_openat2
438 common pidfd_getfd sys_pidfd_getfd
@@ -451,3 +451,4 @@
446 common landlock_restrict_self sys_landlock_restrict_self
# 447 reserved for memfd_secret
448 common process_mrelease sys_process_mrelease
+449 common futex_waitv sys_futex_waitv
Rob

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