If kernel version is older than 3.5, call vga_switcheroo_register_client
with the old parameters using a compat_ wrapper.
.reprobe was added in 2.6.38 so before that do not pass it to the
underlying vga_switcheroo_register_client() function.
Trying kernel 3.4.0-030400-generic [OK]
Trying kernel 3.3.7-030307-generic [OK]
Trying kernel 3.2.2-030202-generic [OK]
Trying kernel 3.1.10-030110-generic [OK]
Trying kernel 3.0.18-030018-generic [OK]
Trying kernel 2.6.39-02063904-generic [OK]
Trying kernel 2.6.38-02063808-generic [OK]
Trying kernel 2.6.37-02063706-generic [OK]
Trying kernel 2.6.36-02063604-generic [OK]
Trying kernel 2.6.35-02063512-generic [OK]
Trying kernel 2.6.34-02063410-generic [OK]
Trying kernel 2.6.33-02063305-generic [OK]
Trying kernel 2.6.32-02063255-generic [OK]
Trying kernel 2.6.31-02063113-generic [OK]
Trying kernel 2.6.30-02063010-generic [OK]
Trying kernel 2.6.29-02062906-generic [OK]
Trying kernel 2.6.28-02062810-generic [OK]
Trying kernel 2.6.27-020627-generic [OK]
Trying kernel 2.6.26-020626-generic [OK]
Trying kernel 2.6.25-020625-generic [OK]
Trying kernel 2.6.24-020624-generic [OK]
Signed-off-by: Ozan Çağlayan <ozancag@xxxxxxxxx>
---
include/linux/compat-3.5.h | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/include/linux/compat-3.5.h b/include/linux/compat-3.5.h
index 74c8176..7855ac9 100644
--- a/include/linux/compat-3.5.h
+++ b/include/linux/compat-3.5.h
@@ -93,6 +93,24 @@ struct vga_switcheroo_client_ops {
void (*reprobe)(struct pci_dev *dev);
bool (*can_switch)(struct pci_dev *dev);
};
+
+/* Wrap around the old code and redefine vga_switcheroo_register_client()
+ * for older kernels < 3.5.0.
+ */
+static inline int compat_vga_switcheroo_register_client(struct pci_dev *dev,
+ const struct vga_switcheroo_client_ops *ops) {
+
+ return vga_switcheroo_register_client(dev,
+ ops->set_gpu_state,
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,38))
+ ops->reprobe,
+#endif
+ ops->can_switch);
+}
+
+#define vga_switcheroo_register_client(_dev, _ops) \
+ compat_vga_switcheroo_register_client(_dev, _ops)
+
#endif
/*
--
1.7.10.4
--
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