clk: Avoid invalid function names in CLK_OF_DECLARE()

commit 5cf9d015be160e2d90d29ae74ef1364390e8fce8 upstream.

After commit c28cd1f3433c ("clk: Mark a fwnode as initialized when using
CLK_OF_DECLARE() macro"), drivers/clk/mvebu/kirkwood.c fails to build:

 drivers/clk/mvebu/kirkwood.c:358:1: error: expected identifier or '('
 CLK_OF_DECLARE(98dx1135_clk, "marvell,mv98dx1135-core-clock",
 ^
 include/linux/clk-provider.h:1367:21: note: expanded from macro 'CLK_OF_DECLARE'
         static void __init name##_of_clk_init_declare(struct device_node *np) \
                            ^
 <scratch space>:124:1: note: expanded from here
 98dx1135_clk_of_clk_init_declare
 ^
 drivers/clk/mvebu/kirkwood.c:358:1: error: invalid digit 'd' in decimal constant
 include/linux/clk-provider.h:1372:34: note: expanded from macro 'CLK_OF_DECLARE'
         OF_DECLARE_1(clk, name, compat, name##_of_clk_init_declare)
                                         ^
 <scratch space>:125:3: note: expanded from here
 98dx1135_clk_of_clk_init_declare
   ^
 drivers/clk/mvebu/kirkwood.c:358:1: error: invalid digit 'd' in decimal constant
 include/linux/clk-provider.h:1372:34: note: expanded from macro 'CLK_OF_DECLARE'
         OF_DECLARE_1(clk, name, compat, name##_of_clk_init_declare)
                                         ^
 <scratch space>:125:3: note: expanded from here
 98dx1135_clk_of_clk_init_declare
   ^
 drivers/clk/mvebu/kirkwood.c:358:1: error: invalid digit 'd' in decimal constant
 include/linux/clk-provider.h:1372:34: note: expanded from macro 'CLK_OF_DECLARE'
         OF_DECLARE_1(clk, name, compat, name##_of_clk_init_declare)
                                         ^
 <scratch space>:125:3: note: expanded from here
 98dx1135_clk_of_clk_init_declare
   ^

C function names must start with either an alphabetic letter or an
underscore. To avoid generating invalid function names from clock names,
add two underscores to the beginning of the identifier.

Fixes: c28cd1f3433c ("clk: Mark a fwnode as initialized when using CLK_OF_DECLARE() macro")
Suggested-by: Saravana Kannan <saravanak@google.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20230308-clk_of_declare-fix-v1-1-317b741e2532@kernel.org
Reviewed-by: Saravana Kannan <saravanak@google.com>
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index a607dcb69ec1040b68a1398bd13bdf3c2dddc89f..aefb06373720fe26195dde651906caaf72e9a1e4 100644 (file)
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -1362,12 +1362,12 @@ struct clk_hw_onecell_data {
 };
 
 #define CLK_OF_DECLARE(name, compat, fn) \
-       static void __init name##_of_clk_init_declare(struct device_node *np) \
+       static void __init __##name##_of_clk_init_declare(struct device_node *np) \
        {                                                               \
                fn(np);                                                 \
                fwnode_dev_initialized(of_fwnode_handle(np), true);     \
        }                                                               \
-       OF_DECLARE_1(clk, name, compat, name##_of_clk_init_declare)
+       OF_DECLARE_1(clk, name, compat, __##name##_of_clk_init_declare)
 
 /*
  * Use this macro when you have a driver that requires two initialization