linux-kernel - linux-next: build failure after merge of the staging.current tree

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Message-ID: <20250108214240.482e0ca5@canb.auug.org.au>
Date: Wed, 8 Jan 2025 21:42:40 +1100
From: Stephen Rothwell <sfr@...b.auug.org.au>
To: Greg KH <greg@...ah.com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Lukas Bulwahn
 <lukas.bulwahn@...hat.com>, Linux Kernel Mailing List
 <linux-kernel@...r.kernel.org>, Linux Next Mailing List
 <linux-next@...r.kernel.org>
Subject: linux-next: build failure after merge of the staging.current tree

Hi all,

After merging the staging.current tree, today's linux-next build (powerpc
allyesconfig) failed like this:

ld: drivers/staging/gpib/tnt4882/mite.o: in function `mite_dma_disarm':
mite.c:(.text+0x1240): multiple definition of `mite_dma_disarm'; drivers/comedi/drivers/mite.o:mite.c:(.text+0x1ac0): first defined here

Exposed by commit

  84b172cea4a2 ("staging: gpib: refer to correct config symbol in tnt4882 Makefile")

It is not, of course, the real cause of the build failure.  The duplicate
version of mite_dma_disarm() in drivers/staging/gpib/tnt4882/mite.c is
not actually used anywhere, so I applied the following patch for today.

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Wed, 8 Jan 2025 21:07:23 +1100
Subject: [PATCH] fix for "staging: gpib: refer to correct config symbol in
 tnt4882 Makefile"

Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 drivers/staging/gpib/tnt4882/mite.c | 9 ---------
 drivers/staging/gpib/tnt4882/mite.h | 1 -
 2 files changed, 10 deletions(-)

diff --git a/drivers/staging/gpib/tnt4882/mite.c b/drivers/staging/gpib/tnt4882/mite.c
index 90341f8c394e..22035e53ec35 100644
--- a/drivers/staging/gpib/tnt4882/mite.c
+++ b/drivers/staging/gpib/tnt4882/mite.c
@@ -170,15 +170,6 @@ int mite_dma_tcr(struct mite_struct *mite)
 	return tcr;
 }
 
-void mite_dma_disarm(struct mite_struct *mite)
-{
-	int chor;
-
-	/* disarm */
-	chor = CHOR_ABORT;
-	writel(chor, mite->mite_io_addr + CHAN_OFFSET(0) + MITE_CHOR);
-}
-
 void mite_dump_regs(struct mite_struct *mite)
 {
 	void *addr = 0;
diff --git a/drivers/staging/gpib/tnt4882/mite.h b/drivers/staging/gpib/tnt4882/mite.h
index 2ecd83379974..dbfc59468228 100644
--- a/drivers/staging/gpib/tnt4882/mite.h
+++ b/drivers/staging/gpib/tnt4882/mite.h
@@ -64,7 +64,6 @@ void mite_list_devices(void);
 int mite_dma_tcr(struct mite_struct *mite);
 
 void mite_dma_arm(struct mite_struct *mite);
-void mite_dma_disarm(struct mite_struct *mite);
 
 void mite_dump_regs(struct mite_struct *mite);
 void mite_setregs(struct mite_struct *mite, unsigned long ll_start, int chan, int dir);
-- 
2.45.2

-- 
Cheers,
Stephen Rothwell

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