[PATCH 2/2] RISC-V: restart extension search on match

[Ben Dooks <ben.dooks@codethink.co.uk>]

If we are passed multiple extensions in -march, don't assume these will
be in any sort of order. If we do match, then restart the loop by setting
the search back to 0, and retrying.

This sorts out issues with the current kernel build where there are now
lots of extensions for the rv64i and even adding zacas doesn't silence the
warnings generated.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
---
 target-riscv.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/target-riscv.c b/target-riscv.c
index 80c25285..ddf50e61 100644
--- a/target-riscv.c
+++ b/target-riscv.c
@@ -56,7 +56,7 @@ static void parse_march_riscv(const char *arg)
 
 	// Each -march=.. options entirely overrides previous ones
 	riscv_flags = 0;
-
+	
 	for (i = 0; i < ARRAY_SIZE(basic_sets); i++) {
 		const char *pat = basic_sets[i].pattern;
 		size_t len = strlen(pat);
@@ -80,6 +80,7 @@ ext:
 		if (!strncmp(arg, pat, len)) {
 			riscv_flags |= extensions[i].flags;
 			arg += len;
+			i = 0;
 		}
 	}
 	if (arg[0])
-- 
2.37.2.352.g3c44437643