linux-kernel - [PATCH 4.9 076/103] arm64/efi: fix variable si set but not used

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Message-Id: <20190822171732.020029545@linuxfoundation.org>
Date:   Thu, 22 Aug 2019 10:19:04 -0700
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Will Deacon <will@...nel.org>,
        Qian Cai <cai@....pw>,
        Catalin Marinas <catalin.marinas@....com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.9 076/103] arm64/efi: fix variable si set but not used

[ Upstream commit f1d4836201543e88ebe70237e67938168d5fab19 ]

GCC throws out this warning on arm64.

drivers/firmware/efi/libstub/arm-stub.c: In function 'efi_entry':
drivers/firmware/efi/libstub/arm-stub.c:132:22: warning: variable 'si'
set but not used [-Wunused-but-set-variable]

Fix it by making free_screen_info() a static inline function.

Acked-by: Will Deacon <will@...nel.org>
Signed-off-by: Qian Cai <cai@....pw>
Signed-off-by: Catalin Marinas <catalin.marinas@....com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm64/include/asm/efi.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/include/asm/efi.h b/arch/arm64/include/asm/efi.h
index 65615820155e6..65db124a44bff 100644
--- a/arch/arm64/include/asm/efi.h
+++ b/arch/arm64/include/asm/efi.h
@@ -52,7 +52,11 @@ int efi_set_mapping_permissions(struct mm_struct *mm, efi_memory_desc_t *md);
 #define efi_is_64bit()			(true)
 
 #define alloc_screen_info(x...)		&screen_info
-#define free_screen_info(x...)
+
+static inline void free_screen_info(efi_system_table_t *sys_table_arg,
+				    struct screen_info *si)
+{
+}
 
 /* redeclare as 'hidden' so the compiler will generate relative references */
 extern struct screen_info screen_info __attribute__((__visibility__("hidden")));
-- 
2.20.1