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Some minor fixes and cleanups for IPMI. Nothing big.

Browse Source 
Handle a bogus BMC a little better, fix autoload on some systems,
 remove some deprecated interfaces from the docs.
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Merge tag 'for-linus-6.12-1' of https://github.com/cminyard/linux-ipmi

Pull IPMI updates from Corey Minyard:
 "Some minor fixes and cleanups for IPMI. Nothing big.

  Handle a bogus BMC a little better, fix autoload on some systems,
  remove some deprecated interfaces from the docs"

* tag 'for-linus-6.12-1' of https://github.com/cminyard/linux-ipmi:
  ipmi: docs: don't advertise deprecated sysfs entries
  ipmi:ssif: Improve detecting during probing
  ipmi: ipmi_ssif: fix module autoloading
This commit is contained in:
Linus Torvalds 2024-09-19 09:33:44 +02:00
commit 18aa0ddd4c
2 changed files with 25 additions and 2 deletions
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2
Documentation/driver-api/ipmi.rst
View File

@ -540,7 +540,7 @@ at module load time (for a module) with::
alerts_broken
The addresses are normal I2C addresses. The adapter is the string
name of the adapter, as shown in /sys/class/i2c-adapter/i2c-<n>/name.
name of the adapter, as shown in /sys/bus/i2c/devices/i2c-<n>/name.
It is *NOT* i2c-<n> itself. Also, the comparison is done ignoring
spaces, so if the name is "This is an I2C chip" you can say
adapter_name=ThisisanI2cchip. This is because it's hard to pass in

25
drivers/char/ipmi/ipmi_ssif.c
View File

@ -1368,8 +1368,20 @@ static int ssif_detect(struct i2c_client *client, struct i2c_board_info *info)
rv = do_cmd(client, 2, msg, &len, resp);
if (rv)
rv = -ENODEV;
else
else {
if (len < 3) {
rv = -ENODEV;
} else {
struct ipmi_device_id id;
rv = ipmi_demangle_device_id(resp[0] >> 2, resp[1],
resp + 2, len - 2, &id);
if (rv)
rv = -ENODEV; /* Error means a BMC probably isn't there. */
}
if (!rv && info)
strscpy(info->type, DEVICE_NAME, I2C_NAME_SIZE);
}
kfree(resp);
return rv;
}
@ -1704,6 +1716,16 @@ static int ssif_probe(struct i2c_client *client)
ipmi_addr_src_to_str(ssif_info->addr_source),
client->addr, client->adapter->name, slave_addr);
/*
* Send a get device id command and validate its response to
* make sure a valid BMC is there.
*/
rv = ssif_detect(client, NULL);
if (rv) {
dev_err(&client->dev, "Not present\n");
goto out;
}
/* Now check for system interface capabilities */
msg[0] = IPMI_NETFN_APP_REQUEST << 2;
msg[1] = IPMI_GET_SYSTEM_INTERFACE_CAPABILITIES_CMD;
@ -2085,6 +2107,7 @@ static const struct platform_device_id ssif_plat_ids[] = {
{ "dmi-ipmi-ssif", 0 },
{ }
};
MODULE_DEVICE_TABLE(platform, ssif_plat_ids);
static struct platform_driver ipmi_driver = {
.driver = {