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authorDavid S. Miller <davem@davemloft.net>2018-04-21 16:31:52 -0400
committerDavid S. Miller <davem@davemloft.net>2018-04-21 16:32:48 -0400
commite0ada51db907ed2db5d46ad7ff86a8b5df68e59b (patch)
tree858966cee69ad8a50e59c4e02dcbde6ba2916151 /scripts/genksyms/Makefile
parent0638eb573cde5888c0886c7f35da604e5db209a6 (diff)
parent83beed7b2b26f232d782127792dd0cd4362fdc41 (diff)
downloadlinux-e0ada51db907ed2db5d46ad7ff86a8b5df68e59b.tar.bz2
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts were simple overlapping changes in microchip driver. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'scripts/genksyms/Makefile')
-rw-r--r--scripts/genksyms/Makefile27
1 files changed, 25 insertions, 2 deletions
diff --git a/scripts/genksyms/Makefile b/scripts/genksyms/Makefile
index 34d6ab1811a4..ef0287e42957 100644
--- a/scripts/genksyms/Makefile
+++ b/scripts/genksyms/Makefile
@@ -5,11 +5,34 @@ always := $(hostprogs-y)
genksyms-objs := genksyms.o parse.tab.o lex.lex.o
+# FIXME: fix the ambiguous grammar in parse.y and delete this hack
+#
+# Suppress shift/reduce, reduce/reduce conflicts warnings
+# unless W=1 is specified.
+#
+# Just in case, run "$(YACC) --version" without suppressing stderr
+# so that 'bison: not found' will be displayed if it is missing.
+ifeq ($(findstring 1,$(KBUILD_ENABLE_EXTRA_GCC_CHECKS)),)
+
+quiet_cmd_bison_no_warn = $(quet_cmd_bison)
+ cmd_bison_no_warn = $(YACC) --version >/dev/null; \
+ $(cmd_bison) 2>/dev/null
+
+$(obj)/parse.tab.c: $(src)/parse.y FORCE
+ $(call if_changed,bison_no_warn)
+
+quiet_cmd_bison_h_no_warn = $(quet_cmd_bison_h)
+ cmd_bison_h_no_warn = $(YACC) --version >/dev/null; \
+ $(cmd_bison_h) 2>/dev/null
+
+$(obj)/parse.tab.h: $(src)/parse.y FORCE
+ $(call if_changed,bison_h_no_warn)
+
+endif
+
# -I needed for generated C source (shipped source)
HOSTCFLAGS_parse.tab.o := -I$(src)
HOSTCFLAGS_lex.lex.o := -I$(src)
# dependencies on generated files need to be listed explicitly
$(obj)/lex.lex.o: $(obj)/parse.tab.h
-
-clean-files := lex.lex.c parse.tab.c parse.tab.h