mcb: Add missing modpost build support

mcb bus is not prepared to autoload client drivers with the data defined on
the drivers' MODULE_DEVICE_TABLE. modpost cannot access to mcb_table_id
inside MODULE_DEVICE_TABLE so the data declared inside is ignored.

Add modpost build support for accessing to the mcb_table_id coded on device
drivers' MODULE_DEVICE_TABLE.

Fixes: 3764e82e5150 ("drivers: Introduce MEN Chameleon Bus")
Reviewed-by: Jorge Sanjuan Garcia <dev-jorge.sanjuangarcia@duagon.com>
Signed-off-by: Jose Javier Rodriguez Barbarin <dev-josejavier.rodriguez@duagon.com>
Acked-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Link: https://patch.msgid.link/20251202084200.10410-1-dev-josejavier.rodriguez@duagon.com
Signed-off-by: Nicolas Schier <nsc@kernel.org>

diff --git a/scripts/mod/devicetable-offsets.c b/scripts/mod/devicetable-offsets.c
index ef2ffb68f69d1d8be019d35446c6909cf65a5f44..b4178c42d08f50dfaba4d50d5c1d48b8aff88db4 100644 (file)
--- a/scripts/mod/devicetable-offsets.c
+++ b/scripts/mod/devicetable-offsets.c
@@ -199,6 +199,9 @@ int main(void)
        DEVID(cpu_feature);
        DEVID_FIELD(cpu_feature, feature);
 
+       DEVID(mcb_device_id);
+       DEVID_FIELD(mcb_device_id, device);
+
        DEVID(mei_cl_device_id);
        DEVID_FIELD(mei_cl_device_id, name);
        DEVID_FIELD(mei_cl_device_id, uuid);

diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
index b3333560b95ee998fbe5bdc9ed380847962d1bd1..4e99393a35f152d7b95a6c1d2a2368dcb58875b1 100644 (file)
--- a/scripts/mod/file2alias.c
+++ b/scripts/mod/file2alias.c
@@ -1110,6 +1110,14 @@ static void do_cpu_entry(struct module *mod, void *symval)
        module_alias_printf(mod, false, "cpu:type:*:feature:*%04X*", feature);
 }
 
+/* Looks like: mcb:16zN */
+static void do_mcb_entry(struct module *mod, void *symval)
+{
+       DEF_FIELD(symval, mcb_device_id, device);
+
+       module_alias_printf(mod, false, "mcb:16z%03d", device);
+}
+
 /* Looks like: mei:S:uuid:N:* */
 static void do_mei_entry(struct module *mod, void *symval)
 {
@@ -1444,6 +1452,7 @@ static const struct devtable devtable[] = {
        {"mipscdmm", SIZE_mips_cdmm_device_id, do_mips_cdmm_entry},
        {"x86cpu", SIZE_x86_cpu_id, do_x86cpu_entry},
        {"cpu", SIZE_cpu_feature, do_cpu_entry},
+       {"mcb", SIZE_mcb_device_id, do_mcb_entry},
        {"mei", SIZE_mei_cl_device_id, do_mei_entry},
        {"rapidio", SIZE_rio_device_id, do_rio_entry},
        {"ulpi", SIZE_ulpi_device_id, do_ulpi_entry},