From: Kunwu Chan <chentao@kylinos.cn>
Date: Fri, 26 Jan 2024 02:12:58 +0000 (+0800)
Subject: powerpc/cell: Code cleanup for spufs_mfc_flush
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=66d8e646e8e78ea6088d9f6b9465e211566b5133;p=linux.git

powerpc/cell: Code cleanup for spufs_mfc_flush

This part was commented from commit a33a7d7309d7
("[PATCH] spufs: implement mfc access for PPE-side DMA")
in about 18 years before.

If there are no plans to enable this part code in the future,
we can remove this dead code.

Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Suggested-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240126021258.574916-1-chentao@kylinos.cn
---

diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c
index 02a8158c469dd..7f4e0db8eb086 100644
--- a/arch/powerpc/platforms/cell/spufs/file.c
+++ b/arch/powerpc/platforms/cell/spufs/file.c
@@ -1704,23 +1704,11 @@ static int spufs_mfc_flush(struct file *file, fl_owner_t id)
 
 	ret = spu_acquire(ctx);
 	if (ret)
-		goto out;
-#if 0
-/* this currently hangs */
-	ret = spufs_wait(ctx->mfc_wq,
-			 ctx->ops->set_mfc_query(ctx, ctx->tagwait, 2));
-	if (ret)
-		goto out;
-	ret = spufs_wait(ctx->mfc_wq,
-			 ctx->ops->read_mfc_tagstatus(ctx) == ctx->tagwait);
-	if (ret)
-		goto out;
-#else
-	ret = 0;
-#endif
+		return ret;
+
 	spu_release(ctx);
-out:
-	return ret;
+
+	return 0;
 }
 
 static int spufs_mfc_fsync(struct file *file, loff_t start, loff_t end, int datasync)