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8db1486065
Using __printf attributes helps to detect several format string issues at compile time (even though -Wformat-security is currently disabled in Makefile). For example it can detect when formatting a pointer as a number, like the issue fixed in commita3fa71c40f("wl18xx: show rx_frames_per_rates as an array as it really is"), or when the arguments do not match the format string, c.f. for example commit5ce1aca814("reiserfs: fix __RASSERT format string"). To prevent similar bugs in the future, add a __printf attribute to every function prototype which needs one in include/linux/ and lib/. These functions were mostly found by using gcc's -Wsuggest-attribute=format flag. Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Felipe Balbi <balbi@ti.com> Cc: Joel Becker <jlbec@evilplan.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
57 lines
1.3 KiB
C
57 lines
1.3 KiB
C
/*
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* include/linux/clkdev.h
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*
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* Copyright (C) 2008 Russell King.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Helper for the clk API to assist looking up a struct clk.
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*/
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#ifndef __CLKDEV_H
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#define __CLKDEV_H
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#include <asm/clkdev.h>
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struct clk;
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struct device;
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struct clk_lookup {
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struct list_head node;
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const char *dev_id;
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const char *con_id;
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struct clk *clk;
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struct clk_hw *clk_hw;
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};
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#define CLKDEV_INIT(d, n, c) \
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{ \
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.dev_id = d, \
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.con_id = n, \
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.clk = c, \
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}
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struct clk_lookup *clkdev_alloc(struct clk *clk, const char *con_id,
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const char *dev_fmt, ...) __printf(3, 4);
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void clkdev_add(struct clk_lookup *cl);
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void clkdev_drop(struct clk_lookup *cl);
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struct clk_lookup *clkdev_create(struct clk *clk, const char *con_id,
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const char *dev_fmt, ...) __printf(3, 4);
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void clkdev_add_table(struct clk_lookup *, size_t);
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int clk_add_alias(const char *, const char *, const char *, struct device *);
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int clk_register_clkdev(struct clk *, const char *, const char *, ...)
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__printf(3, 4);
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int clk_register_clkdevs(struct clk *, struct clk_lookup *, size_t);
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#ifdef CONFIG_COMMON_CLK
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int __clk_get(struct clk *clk);
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void __clk_put(struct clk *clk);
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#endif
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#endif
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