linux-kernel - [PATCH] MIPS: ralink: export rt_sysc_membase for rt2880

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Date:   Sun, 16 May 2021 17:54:17 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     linux-kernel@...r.kernel.org
Cc:     Randy Dunlap <rdunlap@...radead.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Wim Van Sebroeck <wim@...ana.be>,
        John Crispin <john@...ozen.org>, linux-mips@...r.kernel.org,
        linux-watchdog@...r.kernel.org
Subject: [PATCH] MIPS: ralink: export rt_sysc_membase for rt2880_wdt.c

rt2880_wdt.c uses (well, attempts to use) rt_sysc_membase. However,
when this watchdog driver is built as a loadable module, there is a
build error since the rt_sysc_membase symbol is not exported.
Export it to quell the build error.

ERROR: modpost: "rt_sysc_membase" [drivers/watchdog/rt2880_wdt.ko] undefined!

Fixes: 473cf939ff34 ("watchdog: add ralink watchdog driver")
Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Cc: Guenter Roeck <linux@...ck-us.net>
Cc: Wim Van Sebroeck <wim@...ana.be>
Cc: John Crispin <john@...ozen.org>
Cc: linux-mips@...r.kernel.org
Cc: linux-watchdog@...r.kernel.org
---
or make the Kconfig symbol RALINK_WDT bool instead of tristate?

 arch/mips/ralink/of.c |    2 ++
 1 file changed, 2 insertions(+)

--- linux-next-20210514.orig/arch/mips/ralink/of.c
+++ linux-next-20210514/arch/mips/ralink/of.c
@@ -8,6 +8,7 @@
 
 #include <linux/io.h>
 #include <linux/clk.h>
+#include <linux/export.h>
 #include <linux/init.h>
 #include <linux/sizes.h>
 #include <linux/of_fdt.h>
@@ -25,6 +26,7 @@
 
 __iomem void *rt_sysc_membase;
 __iomem void *rt_memc_membase;
+EXPORT_SYMBOL_GPL(rt_sysc_membase);
 
 __iomem void *plat_of_remap_node(const char *node)
 {