util/sconfig: Refactor and fix add_register()
add_register() contained a duplicate check but only compared the new key to the first (smallest in order) list member. Fix that and factor the list handling out so it can be used by other functions. Change-Id: I5a8346f36fa024351e1282c9681868ecf451b283 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41743 Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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@ -528,33 +528,34 @@ void add_resource(struct bus *bus, int type, int index, int base)
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new_resource(bus->dev, type, index, base);
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}
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void add_register(struct chip_instance *chip_instance, char *name, char *val)
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static void add_reg(struct reg **const head, char *const name, char *const val)
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{
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struct reg *r = S_ALLOC(sizeof(struct reg));
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struct reg *const r = S_ALLOC(sizeof(struct reg));
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struct reg *prev = NULL;
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struct reg *cur;
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r->key = name;
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r->value = val;
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if (chip_instance->reg) {
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struct reg *head = chip_instance->reg;
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// sorting to be equal to sconfig's behaviour
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int sort = strcmp(r->key, head->key);
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for (cur = *head; cur != NULL; prev = cur, cur = cur->next) {
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const int sort = strcmp(r->key, cur->key);
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if (sort == 0) {
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printf("ERROR: duplicate 'register' key.\n");
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exit(1);
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}
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if (sort < 0) {
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r->next = head;
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chip_instance->reg = r;
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} else {
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while ((head->next)
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&& (strcmp(head->next->key, r->key) < 0))
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head = head->next;
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r->next = head->next;
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head->next = r;
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}
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} else {
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chip_instance->reg = r;
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if (sort < 0)
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break;
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}
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r->next = cur;
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if (prev)
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prev->next = r;
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else
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*head = r;
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}
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void add_register(struct chip_instance *chip_instance, char *name, char *val)
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{
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add_reg(&chip_instance->reg, name, val);
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}
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void add_slot_desc(struct bus *bus, char *type, char *length, char *designation,
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