From: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Date: Tue, 8 Mar 2022 00:13:53 +0100
Subject: ice: xsk: fix GCC version checking against pragma unroll presence
Patch-mainline: v5.18-rc1
Git-commit: 13d04d79701ba240969b296903de14db3734ab25
References: jsc#PED-376

Pragma unroll was introduced around GCC 8, whereas current xsk code in
ice that prepares loop_unrolled_for macro that is based on mentioned
pragma, compares GCC version against 4, which is wrong and Stephen
found this out by compiling kernel with GCC 5.4 [0].

Fix this mistake and check if GCC version is >= 8.

[0]: https://lore.kernel.org/netdev/20220307213659.47658125@canb.auug.org.au/

Fixes: 126cdfe1007a ("ice: xsk: Improve AF_XDP ZC Tx and use batching API")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Link: https://lore.kernel.org/r/20220307231353.56638-1-maciej.fijalkowski@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/intel/ice/ice_xsk.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/ethernet/intel/ice/ice_xsk.h
+++ b/drivers/net/ethernet/intel/ice/ice_xsk.h
@@ -10,7 +10,7 @@
 
 #ifdef __clang__
 #define loop_unrolled_for _Pragma("clang loop unroll_count(8)") for
-#elif __GNUC__ >= 4
+#elif __GNUC__ >= 8
 #define loop_unrolled_for _Pragma("GCC unroll 8") for
 #else
 #define loop_unrolled_for for