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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 <>
Cc: Guenter Roeck <>
Cc: Wim Van Sebroeck <>
Cc: John Crispin <>
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;

__iomem void *plat_of_remap_node(const char *node)
 \ /
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