diff options
Diffstat (limited to 'scripts/mod/file2alias.c')
| -rw-r--r-- | scripts/mod/file2alias.c | 61 |
1 files changed, 48 insertions, 13 deletions
diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c index 9ddf944cce29..769b69db89c1 100644 --- a/scripts/mod/file2alias.c +++ b/scripts/mod/file2alias.c @@ -51,11 +51,13 @@ do { \ sprintf(str + strlen(str), "*"); \ } while(0) +unsigned int cross_build = 0; /** * Check that sizeof(device_id type) are consistent with size of section * in .o file. If in-consistent then userspace and kernel does not agree * on actual size which is a bug. * Also verify that the final entry in the table is all zeros. + * Ignore both checks if build host differ from target host and size differs. **/ static void device_id_check(const char *modname, const char *device_id, unsigned long size, unsigned long id_size, @@ -64,6 +66,8 @@ static void device_id_check(const char *modname, const char *device_id, int i; if (size % id_size || size < id_size) { + if (cross_build != 0) + return; fatal("%s: sizeof(struct %s_device_id)=%lu is not a modulo " "of the size of section __mod_%s_device_table=%lu.\n" "Fix definition of struct %s_device_id " @@ -324,19 +328,52 @@ static int do_pnp_entry(const char *filename, return 1; } -/* looks like: "pnp:cCdD..." */ -static int do_pnp_card_entry(const char *filename, - struct pnp_card_device_id *id, char *alias) +/* looks like: "pnp:dD" for every device of the card */ +static void do_pnp_card_entries(void *symval, unsigned long size, + struct module *mod) { - int i; + const unsigned long id_size = sizeof(struct pnp_card_device_id); + const unsigned int count = (size / id_size)-1; + const struct pnp_card_device_id *cards = symval; + unsigned int i; - sprintf(alias, "pnp:c%s", id->id); - for (i = 0; i < PNP_MAX_DEVICES; i++) { - if (! *id->devs[i].id) - break; - sprintf(alias + strlen(alias), "d%s", id->devs[i].id); + device_id_check(mod->name, "pnp", size, id_size, symval); + + for (i = 0; i < count; i++) { + unsigned int j; + const struct pnp_card_device_id *card = &cards[i]; + + for (j = 0; j < PNP_MAX_DEVICES; j++) { + const char *id = (char *)card->devs[j].id; + int i2, j2; + int dup = 0; + + if (!id[0]) + break; + + /* find duplicate, already added value */ + for (i2 = 0; i2 < i && !dup; i2++) { + const struct pnp_card_device_id *card2 = &cards[i2]; + + for (j2 = 0; j2 < PNP_MAX_DEVICES; j2++) { + const char *id2 = (char *)card2->devs[j2].id; + + if (!id2[0]) + break; + + if (!strcmp(id, id2)) { + dup = 1; + break; + } + } + } + + /* add an individual alias for every device entry */ + if (!dup) + buf_printf(&mod->dev_table_buf, + "MODULE_ALIAS(\"pnp:d%s*\");\n", id); + } } - return 1; } /* Looks like: pcmcia:mNcNfNfnNpfnNvaNvbNvcNvdN. */ @@ -630,9 +667,7 @@ void handle_moddevtable(struct module *mod, struct elf_info *info, sizeof(struct pnp_device_id), "pnp", do_pnp_entry, mod); else if (sym_is(symname, "__mod_pnp_card_device_table")) - do_table(symval, sym->st_size, - sizeof(struct pnp_card_device_id), "pnp_card", - do_pnp_card_entry, mod); + do_pnp_card_entries(symval, sym->st_size, mod); else if (sym_is(symname, "__mod_pcmcia_device_table")) do_table(symval, sym->st_size, sizeof(struct pcmcia_device_id), "pcmcia", |