On Saturday 19 January 2019 12:55:54 Mattias Jacobsson wrote: > Add WMI support to MODULE_DEVICE_TABLE() by adding info about struct > wmi_device_id in devicetable-offsets.c and add a WMI entry point in > file2alias.c. > > The type argument for MODULE_DEVICE_TABLE(type, name) is wmi. > > Signed-off-by: Mattias Jacobsson <2pi@xxxxxx> > --- > > The idea of adding wmi support to MODULE_DEVICE_TABLE() originates from > a suggestion at [1]. Thanks for implementation! > However [2] states: "Please note that this tag > should not be added without the reporter's permission, especially if > the idea was not posted in a public forum." about the "Suggested-by:" > tag. > Pali Rohár: May I add a "Suggested-by:" tag? Yes, you can! > [1]: https://lore.kernel.org/patchwork/patch/795892/#989423 > [2]: Documentation/process/submitting-patches.rst > > --- > scripts/mod/devicetable-offsets.c | 3 +++ > scripts/mod/file2alias.c | 18 ++++++++++++++++++ > 2 files changed, 21 insertions(+) > > diff --git a/scripts/mod/devicetable-offsets.c b/scripts/mod/devicetable-offsets.c > index 293004499b4d..99276a422e77 100644 > --- a/scripts/mod/devicetable-offsets.c > +++ b/scripts/mod/devicetable-offsets.c > @@ -225,5 +225,8 @@ int main(void) > DEVID_FIELD(typec_device_id, svid); > DEVID_FIELD(typec_device_id, mode); > > + DEVID(wmi_device_id); > + DEVID_FIELD(wmi_device_id, guid_string); > + > return 0; > } > diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c > index a37af7d71973..f014a2466ff7 100644 > --- a/scripts/mod/file2alias.c > +++ b/scripts/mod/file2alias.c > @@ -1287,6 +1287,23 @@ static int do_typec_entry(const char *filename, void *symval, char *alias) > return 1; > } > > +/* Looks like: wmi:guid */ > +static int do_wmi_entry(const char *filename, void *symval, char *alias) > +{ > + DEF_FIELD_ADDR(symval, wmi_device_id, guid_string); > + if (strlen(*guid_string) != WMI_GUID_STRING_LEN) { > + warn("Invalid WMI device id 'wmi:%s' in '%s'\n", > + *guid_string, filename); > + return 0; > + } > + if (snprintf(alias, 500, WMI_MODULE_PREFIX "%s", *guid_string) < 0) { > + warn("Could not generate all MODULE_ALIAS's in '%s'\n", > + filename); > + return 0; > + } > + return 1; > +} > + > /* Does namelen bytes of name exactly match the symbol? */ > static bool sym_is(const char *name, unsigned namelen, const char *symbol) > { > @@ -1357,6 +1374,7 @@ static const struct devtable devtable[] = { > {"fslmc", SIZE_fsl_mc_device_id, do_fsl_mc_entry}, > {"tbsvc", SIZE_tb_service_id, do_tbsvc_entry}, > {"typec", SIZE_typec_device_id, do_typec_entry}, > + {"wmi", SIZE_wmi_device_id, do_wmi_entry}, > }; > > /* Create MODULE_ALIAS() statements. -- Pali Rohár pali.rohar@xxxxxxxxx
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