[PATCH] powerpc/cell: remove BUILD_BUG_ON and add sys_tee to spu_syscall_table

Every time a new syscall gets added, a BUILD_BUG_ON in
arch/powerpc/platforms/cell/spu_callbacks.c gets triggered.
Since the addition of a new syscall is rather harmless,
the error should just be removed.

While we're here, add sys_tee to the list and add a comment
to systbl.S to remind people that there is another list
on powerpc.

Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

2 files changed, 7 insertions, 3 deletions

diff --git a/arch/powerpc/kernel/systbl.S b/arch/powerpc/kernel/systbl.S
index a14c964..8d15226 100644
--- a/arch/powerpc/kernel/systbl.S
+++ b/arch/powerpc/kernel/systbl.S
@@ -324,3 +324,8 @@ COMPAT_SYS(ppoll)
 SYSCALL(unshare)
 SYSCALL(splice)
 SYSCALL(tee)
+
+/*
+ * please add new calls to arch/powerpc/platforms/cell/spu_callbacks.c
+ * as well when appropriate.
+ */
diff --git a/arch/powerpc/platforms/cell/spu_callbacks.c b/arch/powerpc/platforms/cell/spu_callbacks.c
index 6594bec..deb3afb 100644
--- a/arch/powerpc/platforms/cell/spu_callbacks.c
+++ b/arch/powerpc/platforms/cell/spu_callbacks.c
@@ -317,17 +317,16 @@ void *spu_syscall_table[] = {
 	[__NR_ppoll]			sys_ni_syscall, /* sys_ppoll */
 	[__NR_unshare]			sys_unshare,
 	[__NR_splice]			sys_splice,
+	[__NR_tee]			sys_tee,
 };
 
 long spu_sys_callback(struct spu_syscall_block *s)
 {
 	long (*syscall)(u64 a1, u64 a2, u64 a3, u64 a4, u64 a5, u64 a6);
 
-	BUILD_BUG_ON(ARRAY_SIZE(spu_syscall_table) != __NR_syscalls);
-
 	syscall = spu_syscall_table[s->nr_ret];
 
-	if (s->nr_ret >= __NR_syscalls) {
+	if (s->nr_ret >= ARRAY_SIZE(spu_syscall_table)) {
 		pr_debug("%s: invalid syscall #%ld", __FUNCTION__, s->nr_ret);
 		return -ENOSYS;
 	}