diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2024-09-19 09:33:44 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2024-09-19 09:33:44 +0200 |
| commit | 18aa0ddd4ca60571516ba7e41157c3f746e2036a (patch) | |
| tree | 6ef943ae405db98c129d02d3b2e6e7d5a737fc9b /drivers/char | |
| parent | 84bbfe6b6435658132df2880258d34babe46d3e0 (diff) | |
| parent | 64dce81f8c373c681e62d5ffe0397c45a35d48a2 (diff) | |
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
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/ipmi/ipmi_ssif.c | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/drivers/char/ipmi/ipmi_ssif.c b/drivers/char/ipmi/ipmi_ssif.c index e093028391af..d04b391048fb 100644 --- a/drivers/char/ipmi/ipmi_ssif.c +++ b/drivers/char/ipmi/ipmi_ssif.c @@ -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 = { |