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modpost: use doubly linked list for dump_lists 

This looks easier to understand (just because this is a pattern in
the kernel code). No functional change is intended.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
This commit is contained in:
Masahiro Yamada 2022-05-01 17:40:13 +09:00
parent 8a69152be9
commit 4484054816
1 changed files with 10 additions and 14 deletions
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24
scripts/mod/modpost.c
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@ -2505,7 +2505,7 @@ static void write_namespace_deps_files(const char *fname)
}
struct dump_list {
struct dump_list *next;
struct list_head list;
const char *file;
};
@ -2517,8 +2517,8 @@ int main(int argc, char **argv)
char *dump_write = NULL, *files_source = NULL;
int opt;
int n;
struct dump_list *dump_read_start = NULL;
struct dump_list **dump_read_iter = &dump_read_start;
LIST_HEAD(dump_lists);
struct dump_list *dl, *dl2;
while ((opt = getopt(argc, argv, "ei:mnT:o:awENd:")) != -1) {
switch (opt) {
@ -2526,10 +2526,9 @@ int main(int argc, char **argv)
external_module = true;
break;
case 'i':
*dump_read_iter =
NOFAIL(calloc(1, sizeof(**dump_read_iter)));
(*dump_read_iter)->file = optarg;
dump_read_iter = &(*dump_read_iter)->next;
dl = NOFAIL(malloc(sizeof(*dl)));
dl->file = optarg;
list_add_tail(&dl->list, &dump_lists);
break;
case 'm':
modversions = true;
@ -2563,13 +2562,10 @@ int main(int argc, char **argv)
}
}
while (dump_read_start) {
struct dump_list *tmp;
read_dump(dump_read_start->file);
tmp = dump_read_start->next;
free(dump_read_start);
dump_read_start = tmp;
list_for_each_entry_safe(dl, dl2, &dump_lists, list) {
read_dump(dl->file);
list_del(&dl->list);
free(dl);
}
while (optind < argc)