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usb: dwc3: don't compile dwc3_trace() unless CONFIG_FTRACE=y
We don't need dwc3_trace() unless we're building a kernel with CONFIG_FTRACE. This patch reduces dwc3.ko text size a bit while also removing overhead of dwc3_trace() calls. text data bss dec hex filename 50796 581 0 51377 c8b1 drivers/usb/dwc3/dwc3.o 43961 581 0 44542 adfe drivers/usb/dwc3/dwc3.o.patched Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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2 changed files with 11 additions and 1 deletions
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@ -3,7 +3,11 @@ CFLAGS_trace.o := -I$(src)
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obj-$(CONFIG_USB_DWC3) += dwc3.o
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dwc3-y := core.o debug.o trace.o
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dwc3-y := core.o
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ifneq ($(CONFIG_FTRACE),)
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dwc3-y += debug.o trace.o
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endif
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ifneq ($(filter y,$(CONFIG_USB_DWC3_HOST) $(CONFIG_USB_DWC3_DUAL_ROLE)),)
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dwc3-y += host.o
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@ -344,7 +344,13 @@ static inline const char *dwc3_gadget_generic_cmd_status_string(int status)
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}
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}
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#if IS_ENABLED(CONFIG_FTRACE)
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void dwc3_trace(void (*trace)(struct va_format *), const char *fmt, ...);
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#else
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static inline void dwc3_trace(void (*trace)(struct va_format *), const char *fmt, ...)
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{ }
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#endif
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#ifdef CONFIG_DEBUG_FS
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extern void dwc3_debugfs_init(struct dwc3 *);
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