[for_v21] x86/sgx: Provide stub for sgx_drv_init when driver is disabled
diff mbox series

Message ID 20190712040639.18037-1-sean.j.christopherson@intel.com
State New
Headers show
Series
  • [for_v21] x86/sgx: Provide stub for sgx_drv_init when driver is disabled
Related show

Commit Message

Sean Christopherson July 12, 2019, 4:06 a.m. UTC
The core SGX code expects sgx_drv_init() to always be available, provide
a stub to handle CONFIG_INTEL_SGX_DRIVER=n.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
---
 arch/x86/kernel/cpu/sgx/driver/driver.h | 8 ++++++++
 1 file changed, 8 insertions(+)

Patch
diff mbox series

diff --git a/arch/x86/kernel/cpu/sgx/driver/driver.h b/arch/x86/kernel/cpu/sgx/driver/driver.h
index c71570a9cd01..211d5112623e 100644
--- a/arch/x86/kernel/cpu/sgx/driver/driver.h
+++ b/arch/x86/kernel/cpu/sgx/driver/driver.h
@@ -34,6 +34,14 @@  extern u32 sgx_xsave_size_tbl[64];
 extern const struct file_operations sgx_provision_fops;
 
 long sgx_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
+
+#ifdef CONFIG_INTEL_SGX_DRIVER
 int sgx_drv_init(void);
+#else
+static inline int sgx_drv_init(void)
+{
+	return -ENODEV;
+}
+#endif
 
 #endif /* __ARCH_X86_INTEL_SGX_H__ */