[PATCH 1/2] MIPS: CDMM: Add builtin_mips_cdmm_driver() macro

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Add helper macro builtin_mips_cdmm_driver() for builtin CDMM drivers
that don't do anything special in init and have no exit. The
module_mips_cdmm_driver() helper isn't really appropriate for drivers
that can't be built as a module.

Signed-off-by: James Hogan <james.hogan@xxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Cc: linux-mips@xxxxxxxxxxxxxx
Cc: <stable@xxxxxxxxxxxxxxx> # 4.2.x-
---
 arch/mips/include/asm/cdmm.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/mips/include/asm/cdmm.h b/arch/mips/include/asm/cdmm.h
index bece2064cc8c..c06dbf8ba937 100644
--- a/arch/mips/include/asm/cdmm.h
+++ b/arch/mips/include/asm/cdmm.h
@@ -84,6 +84,17 @@ void mips_cdmm_driver_unregister(struct mips_cdmm_driver *);
 	module_driver(__mips_cdmm_driver, mips_cdmm_driver_register, \
 			mips_cdmm_driver_unregister)
 
+/*
+ * builtin_mips_cdmm_driver() - Helper macro for drivers that don't do anything
+ * special in init and have no exit. This eliminates some boilerplate. Each
+ * driver may only use this macro once, and calling it replaces device_initcall
+ * (or in some cases, the legacy __initcall). This is meant to be a direct
+ * parallel of module_mips_cdmm_driver() above but without the __exit stuff that
+ * is not used for builtin cases.
+ */
+#define builtin_mips_cdmm_driver(__mips_cdmm_driver) \
+	builtin_driver(__mips_cdmm_driver, mips_cdmm_driver_register)
+
 /* drivers/tty/mips_ejtag_fdc.c */
 
 #ifdef CONFIG_MIPS_EJTAG_FDC_EARLYCON
-- 
2.4.9





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