linux-kernel - [PATCH 4/4] swiotlb: unexport is_swiotlb

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Message-Id: <20230518134253.909623-5-hch@lst.de>
Date:   Thu, 18 May 2023 15:42:53 +0200
From:   Christoph Hellwig <hch@....de>
To:     Juergen Gross <jgross@...e.com>,
        Stefano Stabellini <sstabellini@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
        "H. Peter Anvin" <hpa@...or.com>, Ben Skeggs <bskeggs@...hat.com>,
        Karol Herbst <kherbst@...hat.com>,
        Lyude Paul <lyude@...hat.com>
Cc:     xen-devel@...ts.xenproject.org, iommu@...ts.linux.dev,
        linux-kernel@...r.kernel.org, nouveau@...ts.freedesktop.org
Subject: [PATCH 4/4] swiotlb: unexport is_swiotlb_active

Drivers have no business looking at dma-mapping or swiotlb internals.

Signed-off-by: Christoph Hellwig <hch@....de>
---
 kernel/dma/swiotlb.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c
index af2e304c672c43..9f1fd28264a067 100644
--- a/kernel/dma/swiotlb.c
+++ b/kernel/dma/swiotlb.c
@@ -921,7 +921,6 @@ bool is_swiotlb_active(struct device *dev)
 
 	return mem && mem->nslabs;
 }
-EXPORT_SYMBOL_GPL(is_swiotlb_active);
 
 #ifdef CONFIG_DEBUG_FS
 
-- 
2.39.2