diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Kconfig.debug | 16 | ||||
| -rw-r--r-- | lib/vsprintf.c | 2 |
2 files changed, 17 insertions, 1 deletions
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug index 5330911ebd30..e4fcbd12cf6e 100644 --- a/lib/Kconfig.debug +++ b/lib/Kconfig.debug @@ -23,6 +23,22 @@ config MAGIC_SYSRQ keys are documented in <file:Documentation/sysrq.txt>. Don't say Y unless you really know what this hack does. +config UNUSED_SYMBOLS + bool "Enable unused/obsolete exported symbols" + default y if X86 + help + Unused but exported symbols make the kernel needlessly bigger. For + that reason most of these unused exports will soon be removed. This + option is provided temporarily to provide a transition period in case + some external kernel module needs one of these symbols anyway. If you + encounter such a case in your module, consider if you are actually + using the right API. (rationale: since nobody in the kernel is using + this in a module, there is a pretty good chance it's actually the + wrong interface to use). If you really need the symbol, please send a + mail to the linux kernel mailing list mentioning the symbol and why + you really need it, and what the merge plan to the mainline kernel for + your module is. + config DEBUG_KERNEL bool "Kernel debugging" help diff --git a/lib/vsprintf.c b/lib/vsprintf.c index 797428afd111..bed7229378f2 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -489,7 +489,7 @@ int vsnprintf(char *buf, size_t size, const char *fmt, va_list args) if (str < end) *str = '\0'; else - *end = '\0'; + end[-1] = '\0'; } /* the trailing null byte doesn't count towards the total */ return str-buf; |