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SubjectRe: [PATCH 1/2] printk: Add dummy routine for when CONFIG_PRINTK=n
On Tue 2015-01-20 18:51:49, Pranith Kumar wrote:
> There are missing dummy routines for log_buf_addr_get() and log_buf_len_get()
> for when CONFIG_PRINTK is not set causing build failures.
>
> This patch adds these dummy routines at the appropriate location.
>
> Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
> CC: Michael Ellerman <mpe@ellerman.id.au>
> ---
> include/linux/printk.h | 15 ++++++++++++---
> 1 file changed, 12 insertions(+), 3 deletions(-)
>
> diff --git a/include/linux/printk.h b/include/linux/printk.h
> index aeb9d7f..f52f02b 100644
> --- a/include/linux/printk.h
> +++ b/include/linux/printk.h
> @@ -10,9 +10,6 @@
> extern const char linux_banner[];
> extern const char linux_proc_banner[];
>
> -extern char *log_buf_addr_get(void);
> -extern u32 log_buf_len_get(void);
> -
> static inline int printk_get_level(const char *buffer)
> {
> if (buffer[0] == KERN_SOH_ASCII && buffer[1]) {
> @@ -168,6 +165,8 @@ void __init setup_log_buf(int early);
> void dump_stack_set_arch_desc(const char *fmt, ...);
> void dump_stack_print_info(const char *log_lvl);
> void show_regs_print_info(const char *log_lvl);
> +char *log_buf_addr_get(void);
> +u32 log_buf_len_get(void);
> #else
> static inline __printf(1, 0)
> int vprintk(const char *s, va_list args)
> @@ -217,6 +216,16 @@ static inline void dump_stack_print_info(const char *log_lvl)
> static inline void show_regs_print_info(const char *log_lvl)
> {
> }
> +
> +static inline char *log_buf_addr_get(void)
> +{
> + return NULL;
> +}
> +
> +static linline u32 log_buf_len_get(void)
^
typo: linline -> inline

Otherwise, it looks fine to me.

Well, If you send v2, I would move this above log_buf_kexec_setup() in
both #ifdef branches. So that all four log_buf()-related functions
declared/defined together.

Best Regards,
Petr

> +{
> + return 0;
> +}
> #endif
>
> extern asmlinkage void dump_stack(void) __cold;
> --
> 1.9.1
>


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