Re: [Xen-devel] [PATCH v3 0/5] xen/arm: Merge early_printk function in console code

[Julien Grall <julien.grall@xxxxxxxxxx>]

Hi Ian,

On 03/14/2014 02:42 PM, Ian Campbell wrote:
> On Wed, 2014-03-12 at 14:34 +0000, Julien Grall wrote:
>> Hello all,
>>
>> This patch series aims to merge early printk in the console code. This will
>> avoid the developper to care whether the message is printed before or after
>> the console is initialized.
>>
>> Sincerely yours,
>>
>> Julien Grall (5):
>>   xen/arm: earlyprintk: move early_flush in early_puts
>>   xen/arm: earlyprintk: export early_puts
>>   xen/arm: Rename EARLY_PRINTK compile option to CONFIG_EARLY_PRINTK
> 
> Something in these three (I think) causes:
> In file included from device_tree.c:26:0:
> /local/scratch/ianc/devel/committer.git/xen/include/asm/early_printk.h: In 
> function âearly_putsâ:
> /local/scratch/ianc/devel/committer.git/xen/include/asm/early_printk.h:35:1: 
> error: parameter name omitted
> make[4]: *** [device_tree.o] Error 1
> make[4]: *** Waiting for unfinished jobs....

Patch #2 is wrong, I forgot to give a name for the paremater of
early_puts. The patch should be:

diff --git a/xen/arch/arm/early_printk.c b/xen/arch/arm/early_printk.c
index b59ea2e..6b90998 100644
--- a/xen/arch/arm/early_printk.c
+++ b/xen/arch/arm/early_printk.c
@@ -21,7 +21,7 @@ void early_flush(void);
 /* Early printk buffer */
 static char __initdata buf[512];

-static void __init early_puts(const char *s)
+void early_puts(const char *s)
 {
     while (*s != '\0') {
         if (*s == '\n')
diff --git a/xen/include/asm-arm/early_printk.h
b/xen/include/asm-arm/early_printk.h
index 8047141..1b0fbdf 100644
--- a/xen/include/asm-arm/early_printk.h
+++ b/xen/include/asm-arm/early_printk.h
@@ -24,6 +24,7 @@

 #ifdef EARLY_PRINTK

+void early_puts(const char *s);
 void early_printk(const char *fmt, ...)
     __attribute__((format (printf, 1, 2)));
 void noreturn early_panic(const char *fmt, ...)
@@ -31,6 +32,8 @@ void noreturn early_panic(const char *fmt, ...)

 #else

+static inline void early_puts(const char *s) {}
+
 static inline  __attribute__((format (printf, 1, 2))) void
 early_printk(const char *fmt, ...)
 {}


-- 
Julien Grall

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