diff options
| author | Armin Wolf <W_Armin@gmx.de> | 2024-03-04 21:50:03 +0100 |
|---|---|---|
| committer | Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2024-03-12 11:48:03 +0100 |
| commit | e42dddce83a0578a518cb7078930c8269a6083af (patch) | |
| tree | e2bcefb1265004c7f79e7ad0cc68af29886eaefd /drivers/platform/x86 | |
| parent | platform/x86/amd/pmf: Fix return value of amd_pmf_start_policy_engine() (diff) | |
| download | linux-e42dddce83a0578a518cb7078930c8269a6083af.tar.xz linux-e42dddce83a0578a518cb7078930c8269a6083af.zip | |
platform/x86/amd/pmf: Do not use readl() for policy buffer access
The policy buffer is allocated using normal memory allocation
functions, so readl() should not be used on it.
Compile-tested only.
Fixes: 7c45534afa44 ("platform/x86/amd/pmf: Add support for PMF Policy Binary")
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20240304205005.10078-3-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Diffstat (limited to 'drivers/platform/x86')
| -rw-r--r-- | drivers/platform/x86/amd/pmf/tee-if.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/platform/x86/amd/pmf/tee-if.c b/drivers/platform/x86/amd/pmf/tee-if.c index 13dd4462e1e3..58ec2c9606e1 100644 --- a/drivers/platform/x86/amd/pmf/tee-if.c +++ b/drivers/platform/x86/amd/pmf/tee-if.c @@ -249,8 +249,8 @@ static int amd_pmf_start_policy_engine(struct amd_pmf_dev *dev) u32 cookie, length; int res; - cookie = readl(dev->policy_buf + POLICY_COOKIE_OFFSET); - length = readl(dev->policy_buf + POLICY_COOKIE_LEN); + cookie = *(u32 *)(dev->policy_buf + POLICY_COOKIE_OFFSET); + length = *(u32 *)(dev->policy_buf + POLICY_COOKIE_LEN); if (cookie != POLICY_SIGN_COOKIE || !length) return -EINVAL; |