linux-kernel - [PATCH] memstick r592: make memstick_debug_get_tpc

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Date:   Tue, 16 May 2023 22:27:04 +0200
From:   Arnd Bergmann <arnd@...nel.org>
To:     Maxim Levitsky <maximlevitsky@...il.com>,
        Alex Dubov <oakad@...oo.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Andrew Morton <akpm@...ux-foundation.org>
Cc:     Arnd Bergmann <arnd@...db.de>, Zheng Wang <zyytlz.wz@....com>,
        linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] memstick r592: make memstick_debug_get_tpc_name() static

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

There are no other files referencing this function, apparently
it was left global to avoid an 'unused function' warning when
the only caller is left out. With a 'W=1' build, it causes
a 'missing prototype' warning though:

drivers/memstick/host/r592.c:47:13: error: no previous prototype for 'memstick_debug_get_tpc_name' [-Werror=missing-prototypes]

Annotate the function as 'static __maybe_unused' to avoid both
problems.

Fixes: 926341250102 ("memstick: add driver for Ricoh R5C592 card reader")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/memstick/host/r592.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/memstick/host/r592.c b/drivers/memstick/host/r592.c
index 42bfc46842b8..461f5ffd02bc 100644
--- a/drivers/memstick/host/r592.c
+++ b/drivers/memstick/host/r592.c
@@ -44,12 +44,10 @@ static const char *tpc_names[] = {
  * memstick_debug_get_tpc_name - debug helper that returns string for
  * a TPC number
  */
-const char *memstick_debug_get_tpc_name(int tpc)
+static __maybe_unused const char *memstick_debug_get_tpc_name(int tpc)
 {
 	return tpc_names[tpc-1];
 }
-EXPORT_SYMBOL(memstick_debug_get_tpc_name);
-
 
 /* Read a register*/
 static inline u32 r592_read_reg(struct r592_device *dev, int address)
-- 
2.39.2