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| author | Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> | 2025-03-28 15:47:49 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-04-10 14:33:42 +0200 |
| commit | 16d6b2527f0d0bc77aa88a00b50e8ff109765d3e (patch) | |
| tree | 7fff0333928105e6758209ecfa0fa898c79684c3 /drivers | |
| parent | c498c117c4de7011ede84acca2cce79c524b219f (diff) | |
| download | linux-16d6b2527f0d0bc77aa88a00b50e8ff109765d3e.tar.gz linux-16d6b2527f0d0bc77aa88a00b50e8ff109765d3e.tar.bz2 linux-16d6b2527f0d0bc77aa88a00b50e8ff109765d3e.zip | |
platform/x86: ISST: Correct command storage data length
commit 9462e74c5c983cce34019bfb27f734552bebe59f upstream.
After resume/online turbo limit ratio (TRL) is restored partially if
the admin explicitly changed TRL from user space.
A hash table is used to store SST mail box and MSR settings when modified
to restore those settings after resume or online. This uses a struct
isst_cmd field "data" to store these settings. This is a 64 bit field.
But isst_store_new_cmd() is only assigning as u32. This results in
truncation of 32 bits.
Change the argument to u64 from u32.
Fixes: f607874f35cb ("platform/x86: ISST: Restore state on resume")
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20250328224749.2691272-1-srinivas.pandruvada@linux.intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/platform/x86/intel/speed_select_if/isst_if_common.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/platform/x86/intel/speed_select_if/isst_if_common.c b/drivers/platform/x86/intel/speed_select_if/isst_if_common.c index 380e36953e31..595db17ca129 100644 --- a/drivers/platform/x86/intel/speed_select_if/isst_if_common.c +++ b/drivers/platform/x86/intel/speed_select_if/isst_if_common.c @@ -77,7 +77,7 @@ static DECLARE_HASHTABLE(isst_hash, 8); static DEFINE_MUTEX(isst_hash_lock); static int isst_store_new_cmd(int cmd, u32 cpu, int mbox_cmd_type, u32 param, - u32 data) + u64 data) { struct isst_cmd *sst_cmd; |