[PATCH] powerpc: drop unused GENERIC_CSUM Kconfig item

[Christophe Leroy]

Commit d4fde568a34a ("powerpc/64: Use optimized checksum routines on
little-endian") converted last powerpc user of GENERIC_CSUM.

This patch does a final cleanup dropping the Kconfig GENERIC_CSUM
option which is always 'n', and associated piece of code in
asm/checksum.h

Fixes: d4fde568a34a ("powerpc/64: Use optimized checksum routines on little-endian")
Reported-by: Christoph Hellwig <hch at lst.de>
Signed-off-by: Christophe Leroy <christophe.leroy at c-s.fr>
---
 arch/powerpc/Kconfig                | 3 ---
 arch/powerpc/include/asm/checksum.h | 4 ----
 2 files changed, 7 deletions(-)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 08908219fba9..849b0d5ac3d1 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -251,9 +251,6 @@ config PPC_BARRIER_NOSPEC
     default y
     depends on PPC_BOOK3S_64 || PPC_FSL_BOOK3E
 
-config GENERIC_CSUM
-	def_bool n
-
 config EARLY_PRINTK
 	bool
 	default y
diff --git a/arch/powerpc/include/asm/checksum.h b/arch/powerpc/include/asm/checksum.h
index a78a57e5058d..72a65d744a28 100644
--- a/arch/powerpc/include/asm/checksum.h
+++ b/arch/powerpc/include/asm/checksum.h
@@ -9,9 +9,6 @@
  * 2 of the License, or (at your option) any later version.
  */
 
-#ifdef CONFIG_GENERIC_CSUM
-#include <asm-generic/checksum.h>
-#else
 #include <linux/bitops.h>
 #include <linux/in6.h>
 /*
@@ -217,6 +214,5 @@ __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
 			const struct in6_addr *daddr,
 			__u32 len, __u8 proto, __wsum sum);
 
-#endif
 #endif /* __KERNEL__ */
 #endif
-- 
2.13.3