linux-kernel - [PATCH] powerpc/cell: Code cleanup for spufs_mfc

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Message-Id: <20240125100854.540964-1-chentao@kylinos.cn>
Date: Thu, 25 Jan 2024 18:08:54 +0800
From: Kunwu Chan <chentao@...inos.cn>
To: jk@...abs.org,
	arnd@...db.de,
	mpe@...erman.id.au,
	npiggin@...il.com,
	christophe.leroy@...roup.eu,
	aneesh.kumar@...nel.org,
	naveen.n.rao@...ux.ibm.com
Cc: linuxppc-dev@...ts.ozlabs.org,
	linux-kernel@...r.kernel.org,
	Kunwu Chan <chentao@...inos.cn>
Subject: [PATCH] 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@...inos.cn>
---
 arch/powerpc/platforms/cell/spufs/file.c | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c
index 02a8158c469d..d5e1af483601 100644
--- a/arch/powerpc/platforms/cell/spufs/file.c
+++ b/arch/powerpc/platforms/cell/spufs/file.c
@@ -1705,19 +1705,7 @@ 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
 	spu_release(ctx);
 out:
 	return ret;
-- 
2.39.2