diff options
| author | Tomas Winkler <tomas.winkler@intel.com> | 2022-09-27 17:41:31 -0700 |
|---|---|---|
| committer | Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> | 2022-10-03 11:29:07 -0700 |
| commit | 4ed1cc997f24c861df7a13d6309479b980d901b2 (patch) | |
| tree | fa53b75bab1fc8f0c9cee1ac7a8baed81628f8ba /drivers/misc/mei/hw-me.c | |
| parent | 97acb6a8fcc4e5c2cdc2693a35acdc5a7461aaa3 (diff) | |
mei: add support to GSC extended header
GSC extend header is of variable size and data
is provided in a sgl list inside the header
and not in the data buffers, need to enable the path.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Vitaly Lubart <vitaly.lubart@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220928004145.745803-2-daniele.ceraolospurio@intel.com
Diffstat (limited to 'drivers/misc/mei/hw-me.c')
| -rw-r--r-- | drivers/misc/mei/hw-me.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c index 9e2f781c6ed5..da4ef0b51954 100644 --- a/drivers/misc/mei/hw-me.c +++ b/drivers/misc/mei/hw-me.c @@ -590,9 +590,14 @@ static int mei_me_hbuf_write(struct mei_device *dev, u32 dw_cnt; int empty_slots; - if (WARN_ON(!hdr || !data || hdr_len & 0x3)) + if (WARN_ON(!hdr || hdr_len & 0x3)) return -EINVAL; + if (!data && data_len) { + dev_err(dev->dev, "wrong parameters null data with data_len = %zu\n", data_len); + return -EINVAL; + } + dev_dbg(dev->dev, MEI_HDR_FMT, MEI_HDR_PRM((struct mei_msg_hdr *)hdr)); empty_slots = mei_hbuf_empty_slots(dev); |