genksyms: Handle string literals with spaces in reference files

The reference files use spaces to separate tokens, however, we must
preserve spaces inside string literals. Currently the only case in the
tree is struct edac_raw_error_desc in <linux/edac.h>:

$ KBUILD_SYMTYPES=1 make -s drivers/edac/amd64_edac.symtypes
$ mv drivers/edac/amd64_edac.{symtypes,symref}
$ KBUILD_SYMTYPES=1 make -s drivers/edac/amd64_edac.symtypes
drivers/edac/amd64_edac.c:527: warning: amd64_get_dram_hole_info: modversion changed because of changes in struct edac_raw_error_desc

Signed-off-by: Michal Marek <mmarek@suse.com>

diff --git a/scripts/genksyms/genksyms.c b/scripts/genksyms/genksyms.c
index 88632df4381b933a95c91de0e62c5e8648c4f089..dafaf96e0a34baea94d4b4e5f171f9ce0e53927e 100644 (file)
--- a/scripts/genksyms/genksyms.c
+++ b/scripts/genksyms/genksyms.c
@@ -423,13 +423,15 @@ static struct string_list *read_node(FILE *f)
        struct string_list node = {
                .string = buffer,
                .tag = SYM_NORMAL };
-       int c;
+       int c, in_string = 0;
 
        while ((c = fgetc(f)) != EOF) {
-               if (c == ' ') {
+               if (!in_string && c == ' ') {
                        if (node.string == buffer)
                                continue;
                        break;
+               } else if (c == '"') {
+                       in_string = !in_string;
                } else if (c == '\n') {
                        if (node.string == buffer)
                                return NULL;