[PATCH v2] powerpc/iommu: Code cleanup for cell/iommu.c

From: Kunwu Chan <chentao@kylinos.cn>
To: arnd@arndb.de, mpe@ellerman.id.au, npiggin@gmail.com,
	christophe.leroy@csgroup.eu, aneesh.kumar@kernel.org,
	naveen.n.rao@linux.ibm.com
Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
	Kunwu Chan <chentao@kylinos.cn>
Subject: [PATCH v2] powerpc/iommu: Code cleanup for cell/iommu.c
Date: Thu, 25 Jan 2024 16:26:37 +0800	[thread overview]
Message-ID: <20240125082637.532826-1-chentao@kylinos.cn> (raw)

This part was commented from commit 165785e5c0be ("[POWERPC] Cell
iommu support") in about 17 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>
---
Change in v2:
    - Remove the second blank line
---
 arch/powerpc/platforms/cell/iommu.c | 17 -----------------
 1 file changed, 17 deletions(-)

diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index 1202a69b0a20..4cd9c0de22c2 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -424,23 +424,6 @@ static void __init cell_iommu_setup_hardware(struct cbe_iommu *iommu,
 	cell_iommu_enable_hardware(iommu);
 }
 
-#if 0/* Unused for now */
-static struct iommu_window *find_window(struct cbe_iommu *iommu,
-		unsigned long offset, unsigned long size)
-{
-	struct iommu_window *window;
-
-	/* todo: check for overlapping (but not equal) windows) */
-
-	list_for_each_entry(window, &(iommu->windows), list) {
-		if (window->offset == offset && window->size == size)
-			return window;
-	}
-
-	return NULL;
-}
-#endif
-
 static inline u32 cell_iommu_get_ioid(struct device_node *np)
 {
 	const u32 *ioid;
-- 
2.39.2

