From de48844398f81cfdf087d56e12c920d620dae8d5 Mon Sep 17 00:00:00 2001 From: Jeff Garzik Date: Thu, 25 Oct 2007 04:06:13 -0400 Subject: [PATCH] Permit silencing of __deprecated warnings. The __deprecated marker is quite useful in highlighting the remnants of old APIs that want removing. However, it is quite normal for one or more years to pass, before the (usually ancient, bitrotten) code in question is either updated or deleted. Thus, like __must_check, add a Kconfig option that permits the silencing of this compiler warning. This change mimics the ifdef-ery and Kconfig defaults of MUST_CHECK as closely as possible. Signed-off-by: Jeff Garzik Signed-off-by: Linus Torvalds --- include/linux/compiler.h | 6 ++++++ lib/Kconfig.debug | 8 ++++++++ 2 files changed, 14 insertions(+) diff --git a/include/linux/compiler.h b/include/linux/compiler.h index c811c8b979ac..c68b67b86ef1 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -101,6 +101,12 @@ extern void __chk_io_ptr(const volatile void __iomem *); #undef __must_check #define __must_check #endif +#ifndef CONFIG_ENABLE_WARN_DEPRECATED +#undef __deprecated +#undef __deprecated_for_modules +#define __deprecated +#define __deprecated_for_modules +#endif /* * Allow us to avoid 'defined but not used' warnings on functions and data, diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 1faa5087dc86..1e5f207b9074 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -9,6 +9,14 @@ config PRINTK_TIME operations. This is useful for identifying long delays in kernel startup. +config ENABLE_WARN_DEPRECATED + bool "Enable __deprecated logic" + default y + help + Enable the __deprecated logic in the kernel build. + Disable this to suppress the "warning: 'foo' is deprecated + (declared at kernel/power/somefile.c:1234)" messages. + config ENABLE_MUST_CHECK bool "Enable __must_check logic" default y -- 2.20.1