void (*late_init)(struct ufs_hba *hba);
};
-enum {
+enum intel_ufs_dsm_func_id {
INTEL_DSM_FNS = 0,
INTEL_DSM_RESET = 1,
};
GUID_INIT(0x1A4832A0, 0x7D03, 0x43CA,
0xB0, 0x20, 0xF6, 0xDC, 0xD1, 0x2A, 0x19, 0x50);
+static bool __intel_dsm_supported(struct intel_host *host,
+ enum intel_ufs_dsm_func_id fn)
+{
+ return fn < 32 && fn >= 0 && (host->dsm_fns & (1u << fn));
+}
+
+#define INTEL_DSM_SUPPORTED(host, name) \
+ __intel_dsm_supported(host, INTEL_DSM_##name)
+
static int __intel_dsm(struct intel_host *intel_host, struct device *dev,
unsigned int fn, u32 *result)
{
static int intel_dsm(struct intel_host *intel_host, struct device *dev,
unsigned int fn, u32 *result)
{
- if (fn > 31 || !(intel_host->dsm_fns & (1 << fn)))
+ if (!__intel_dsm_supported(intel_host, fn))
return -EOPNOTSUPP;
return __intel_dsm(intel_host, dev, fn, result);
{
struct intel_host *host = ufshcd_get_variant(hba);
- if (host->dsm_fns & INTEL_DSM_RESET) {
+ if (INTEL_DSM_SUPPORTED(host, RESET)) {
u32 result = 0;
int err;
return -ENOMEM;
ufshcd_set_variant(hba, host);
intel_dsm_init(host, hba->dev);
- if (host->dsm_fns & INTEL_DSM_RESET) {
+ if (INTEL_DSM_SUPPORTED(host, RESET)) {
if (hba->vops->device_reset)
hba->caps |= UFSHCD_CAP_DEEPSLEEP;
} else {