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When static inline is used in a header file the function should preferably be inlined and if not possible made a static function. When declared inside a c file there is a static function, which might be inlined. Since SPL uses a define to declare the static inline it becomes part of the c file although it is declared in a header and clang will warn that you have introduced unused static functions. Add maybe_unused to prevent such warnings. Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
74 lines
1.8 KiB
C
74 lines
1.8 KiB
C
/*
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* (C) Copyright 2012
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* Joe Hershberger, National Instruments, joe.hershberger@ni.com
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef __ENV_CALLBACK_H__
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#define __ENV_CALLBACK_H__
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#include <env_flags.h>
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#include <linker_lists.h>
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#include <search.h>
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#define ENV_CALLBACK_VAR ".callbacks"
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/* Board configs can define additional static callback bindings */
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#ifndef CONFIG_ENV_CALLBACK_LIST_STATIC
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#define CONFIG_ENV_CALLBACK_LIST_STATIC
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#endif
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#ifdef CONFIG_SILENT_CONSOLE
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#define SILENT_CALLBACK "silent:silent,"
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#else
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#define SILENT_CALLBACK
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#endif
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#ifdef CONFIG_SPLASHIMAGE_GUARD
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#define SPLASHIMAGE_CALLBACK "splashimage:splashimage,"
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#else
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#define SPLASHIMAGE_CALLBACK
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#endif
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/*
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* This list of callback bindings is static, but may be overridden by defining
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* a new association in the ".callbacks" environment variable.
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*/
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#define ENV_CALLBACK_LIST_STATIC ENV_CALLBACK_VAR ":callbacks," \
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ENV_FLAGS_VAR ":flags," \
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"baudrate:baudrate," \
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"bootfile:bootfile," \
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"loadaddr:loadaddr," \
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SILENT_CALLBACK \
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SPLASHIMAGE_CALLBACK \
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"stdin:console,stdout:console,stderr:console," \
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CONFIG_ENV_CALLBACK_LIST_STATIC
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struct env_clbk_tbl {
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const char *name; /* Callback name */
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int (*callback)(const char *name, const char *value, enum env_op op,
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int flags);
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};
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void env_callback_init(ENTRY *var_entry);
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/*
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* Define a callback that can be associated with variables.
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* when associated through the ".callbacks" environment variable, the callback
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* will be executed any time the variable is inserted, overwritten, or deleted.
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*/
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#ifdef CONFIG_SPL_BUILD
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#define U_BOOT_ENV_CALLBACK(name, callback) \
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static inline __maybe_unused void _u_boot_env_noop_##name(void) \
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{ \
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(void)callback; \
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}
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#else
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#define U_BOOT_ENV_CALLBACK(name, callback) \
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ll_entry_declare(struct env_clbk_tbl, name, env_clbk) = \
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{#name, callback}
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#endif
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#endif /* __ENV_CALLBACK_H__ */
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