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fa66e13)
BugLink: https://bugs.launchpad.net/bugs/1929455
[ Upstream commit
9d11af8b06a811c5c4878625f51ce109e2af4e80 ]
Make __qcom_scm_is_call_available() return bool instead of int. The
function has "is" in the name, so it should return a bool to indicate
the truth of the call being available. Unfortunately, it can return a
number < 0 which also looks "true", but not all callers expect that and
thus they think a call is available when really the check to see if the
call is available failed to figure it out.
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Elliot Berman <eberman@codeaurora.org>
Cc: Brian Masney <masneyb@onstation.org>
Cc: Stephan Gerhold <stephan@gerhold.net>
Cc: Jeffrey Hugo <jhugo@codeaurora.org>
Cc: Douglas Anderson <dianders@chromium.org>
Fixes: 0f206514749b ("scsi: firmware: qcom_scm: Add support for programming inline crypto keys")
Fixes: 0434a4061471 ("firmware: qcom: scm: add support to restore secure config to qcm_scm-32")
Fixes: b0a1614fb1f5 ("firmware: qcom: scm: add OCMEM lock/unlock interface")
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20210223214539.1336155-2-swboyd@chromium.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Kelsey Skunberg <kelsey.skunberg@canonical.com>
clk_disable_unprepare(__scm->bus_clk);
}
clk_disable_unprepare(__scm->bus_clk);
}
-static int __qcom_scm_is_call_available(struct device *dev, u32 svc_id,
- u32 cmd_id);
-
enum qcom_scm_convention qcom_scm_convention;
static bool has_queried __read_mostly;
static DEFINE_SPINLOCK(query_lock);
enum qcom_scm_convention qcom_scm_convention;
static bool has_queried __read_mostly;
static DEFINE_SPINLOCK(query_lock);
-static int __qcom_scm_is_call_available(struct device *dev, u32 svc_id,
- u32 cmd_id)
+static bool __qcom_scm_is_call_available(struct device *dev, u32 svc_id,
+ u32 cmd_id)
{
int ret;
struct qcom_scm_desc desc = {
{
int ret;
struct qcom_scm_desc desc = {
ret = qcom_scm_call(dev, &desc, &res);
ret = qcom_scm_call(dev, &desc, &res);
- return ret ? : res.result[0];
+ return ret ? false : !!res.result[0];
};
struct qcom_scm_res res;
};
struct qcom_scm_res res;
- ret = __qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_PIL,
- QCOM_SCM_PIL_PAS_IS_SUPPORTED);
- if (ret <= 0)
+ if (!__qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_PIL,
+ QCOM_SCM_PIL_PAS_IS_SUPPORTED))
return false;
ret = qcom_scm_call(__scm->dev, &desc, &res);
return false;
ret = qcom_scm_call(__scm->dev, &desc, &res);
*/
bool qcom_scm_hdcp_available(void)
{
*/
bool qcom_scm_hdcp_available(void)
{
int ret = qcom_scm_clk_enable();
if (ret)
return ret;
int ret = qcom_scm_clk_enable();
if (ret)
return ret;
- ret = __qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_HDCP,
+ avail = __qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_HDCP,
QCOM_SCM_HDCP_INVOKE);
qcom_scm_clk_disable();
QCOM_SCM_HDCP_INVOKE);
qcom_scm_clk_disable();
}
EXPORT_SYMBOL(qcom_scm_hdcp_available);
}
EXPORT_SYMBOL(qcom_scm_hdcp_available);