[PATCH v2 08/10] drivers: fix duplicate extern declarations

[Safocl Stollmannovic]

Compiling a kernel module with a C++ compiler results in a "duplicate
extern specifier" error.
This occurs because the code contains `extern asmlinkage`, and `asmlinkage`
expands to `extern C` when processed by a C++ compiler.
Since the code already contains sections that respond to a C++ compiler,
I believe it is a perfectly valid approach to gradually move toward a state
where kernel modules can be compiled by a C++ compiler without any issues.
The `extern` specifier must be removed.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=222257

Signed-off-by: Safocl Stollmannovic <safocl88@xxxxxxxxx>
---
 drivers/soc/bcm/brcmstb/pm/pm.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/soc/bcm/brcmstb/pm/pm.h b/drivers/soc/bcm/brcmstb/pm/pm.h
index 17f7a06a7..041b7ae96 100644
--- a/drivers/soc/bcm/brcmstb/pm/pm.h
+++ b/drivers/soc/bcm/brcmstb/pm/pm.h
@@ -64,14 +64,14 @@
 
 #ifndef CONFIG_MIPS
 extern const unsigned long brcmstb_pm_do_s2_sz;
-extern asmlinkage int brcmstb_pm_do_s2(void __iomem *aon_ctrl_base,
+asmlinkage int brcmstb_pm_do_s2(void __iomem *aon_ctrl_base,
 		void __iomem *ddr_phy_pll_status);
 #else
 /* s2 asm */
-extern asmlinkage int brcm_pm_do_s2(u32 *s2_params);
+asmlinkage int brcm_pm_do_s2(u32 *s2_params);
 
 /* s3 asm */
-extern asmlinkage int brcm_pm_do_s3(void __iomem *aon_ctrl_base,
+asmlinkage int brcm_pm_do_s3(void __iomem *aon_ctrl_base,
 		int dcache_linesz);
 extern int s3_reentry;
 #endif /* CONFIG_MIPS */
-- 
2.56.1