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mcb: Add missing modpost build support

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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>
This commit is contained in:
Jose Javier Rodriguez Barbarin 2025-12-02 09:42:00 +01:00 committed by Nicolas Schier
parent b08fc4d0ec
commit 1f4ea4838b
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GPG Key ID: 07520A7016261269
2 changed files with 12 additions and 0 deletions
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3
scripts/mod/devicetable-offsets.c
View File

@ -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);

9
scripts/mod/file2alias.c
View File

@ -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},