From: Geert Uytterhoeven Date: Wed, 28 Feb 2024 14:00:04 +0000 (+0100) Subject: dyndbg: Use *no_printk() helpers X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=0381e588949380704005dacdbef6e9a2920260df;p=linux.git dyndbg: Use *no_printk() helpers When printk-indexing is enabled, each printk() or dev_printk() invocation emits a pi_entry structure. This is even true when the call is protected by an always-false check: while the actual code to print the message is optimized out by the compiler, the pi_entry structure is still emitted. Fix this by replacing "if (0) *printk(...)" constructs by calls to the corresponding *no_printk() helpers. Note that this has minimal impact, as most (all?) callers of dynamic_{pr,dev}_debug() are protected by checks for DYNAMIC_DEBUG anyway. Still, using the helpers serves as a good example to follow. Signed-off-by: Geert Uytterhoeven Reviewed-by: Andy Shevchenko Reviewed-by: Xiubo Li Reviewed-by: Chris Down Reviewed-by: Petr Mladek Link: https://lore.kernel.org/r/32e18ceb528b99d9147be9c1af578a1965e2bad9.1709127473.git.geert+renesas@glider.be Signed-off-by: Petr Mladek --- diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h index 4fcbf4d4fd0a2..ff44ec346162a 100644 --- a/include/linux/dynamic_debug.h +++ b/include/linux/dynamic_debug.h @@ -305,9 +305,9 @@ void __dynamic_ibdev_dbg(struct _ddebug *descriptor, #define DYNAMIC_DEBUG_BRANCH(descriptor) false #define dynamic_pr_debug(fmt, ...) \ - do { if (0) printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); } while (0) + no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__) #define dynamic_dev_dbg(dev, fmt, ...) \ - do { if (0) dev_printk(KERN_DEBUG, dev, fmt, ##__VA_ARGS__); } while (0) + dev_no_printk(KERN_DEBUG, dev, fmt, ##__VA_ARGS__) #define dynamic_hex_dump(prefix_str, prefix_type, rowsize, \ groupsize, buf, len, ascii) \ do { if (0) \