linux-kernel - [PATCH 3.16 160/254] mmc: s3mci: mark debug

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Date:   Wed, 28 Feb 2018 15:20:18 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, "Arnd Bergmann" <arnd@...db.de>,
        "Ulf Hansson" <ulf.hansson@...aro.org>
Subject: [PATCH 3.16 160/254] mmc: s3mci: mark debug_regs[] as static

3.16.55-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Arnd Bergmann <arnd@...db.de>

commit 2bd7b4aacdb6efa5ccd4749c365c171b884791d2 upstream.

The global array clashes with a newly added symbol of the same name:

drivers/staging/ccree/cc_debugfs.o:(.data+0x0): multiple definition of `debug_regs'
drivers/mmc/host/s3cmci.o:(.data+0x70): first defined here

We should fix both, this one addresses the s3cmci driver by removing
the symbol from the global namespace. While at it, this separates
the declaration from the type definition and makes the variable const.

Fixes: 9bdd203b4dc8 ("s3cmci: add debugfs support for examining driver and hardware state")
Fixes: b3ec9a6736f2 ("staging: ccree: staging: ccree: replace sysfs by debugfs interface")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
Signed-off-by: Ulf Hansson <ulf.hansson@...aro.org>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/mmc/host/s3cmci.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

--- a/drivers/mmc/host/s3cmci.c
+++ b/drivers/mmc/host/s3cmci.c
@@ -1537,7 +1537,9 @@ static const struct file_operations s3cm
 struct s3cmci_reg {
 	unsigned short	addr;
 	unsigned char	*name;
-} debug_regs[] = {
+};
+
+static const struct s3cmci_reg debug_regs[] = {
 	DBG_REG(CON),
 	DBG_REG(PRE),
 	DBG_REG(CMDARG),
@@ -1559,7 +1561,7 @@ struct s3cmci_reg {
 static int s3cmci_regs_show(struct seq_file *seq, void *v)
 {
 	struct s3cmci_host *host = seq->private;
-	struct s3cmci_reg *rptr = debug_regs;
+	const struct s3cmci_reg *rptr = debug_regs;
 
 	for (; rptr->name; rptr++)
 		seq_printf(seq, "SDI%s\t=0x%08x\n", rptr->name,