Re: Linux 2.6.15-rc2

[Hugh Dickins <hugh@veritas.com>]

On Wed, 23 Nov 2005, Gene Heskett wrote:
> On Wednesday 23 November 2005 18:40, Hugh Dickins wrote:
> >
> >No git familiarity needed:
> >http://ftp.kernel.org/pub/linux/kernel/v2.6/snapshots/
> >contains the daily patches against recent -rcs
> 
> Unforch, using a 2.6.14 base, applying 2.6.15-rc2 followed by
> 2.6.15-rc2-git3 blows up about 24 seconds into my makeit script:
> 
>   CC      arch/i386/kernel/cpu/mtrr/main.o
> arch/i386/kernel/cpu/mtrr/main.c: In function `set_mtrr':
> arch/i386/kernel/cpu/mtrr/main.c:225: error: `ipi_handler' undeclared
> (first use in this function)
> arch/i386/kernel/cpu/mtrr/main.c:225: error: (Each undeclared identifier
> is reported only once
> arch/i386/kernel/cpu/mtrr/main.c:225: error: for each function it
> appears in.)
> make[3]: *** [arch/i386/kernel/cpu/mtrr/main.o] Error 1
> make[2]: *** [arch/i386/kernel/cpu/mtrr] Error 2
> make[1]: *** [arch/i386/kernel/cpu] Error 2
> make: *** [arch/i386/kernel] Error 2

That's one of the things fixed by Andrew's patch below
(though Linus fixed it differently in the end).
Or you could just wait for 2.6.15-rc2-git4, should be along soon.

Hugh

diff -puN include/linux/smp.h~smp_call_function-must-be-a-macro include/linux/smp.h
--- devel/include/linux/smp.h~smp_call_function-must-be-a-macro	2005-11-23 00:14:19.000000000 -0800
+++ devel-akpm/include/linux/smp.h	2005-11-23 00:20:54.000000000 -0800
@@ -94,13 +94,7 @@ void smp_prepare_boot_cpu(void);
  */
 #define raw_smp_processor_id()			0
 #define hard_smp_processor_id()			0
-
-static inline int smp_call_function(void (*func) (void *info), void *info,
-				    int retry, int wait)
-{
-	return 0;
-}
-
+#define smp_call_function(func,info,retry,wait)	({ 0; })
 #define on_each_cpu(func,info,retry,wait)	({ func(info); 0; })
 static inline void smp_send_reschedule(int cpu) { }
 #define num_booting_cpus()			1
diff -puN net/core/flow.c~smp_call_function-must-be-a-macro net/core/flow.c
--- devel/net/core/flow.c~smp_call_function-must-be-a-macro	2005-11-23 00:17:40.000000000 -0800
+++ devel-akpm/net/core/flow.c	2005-11-23 00:17:47.000000000 -0800
@@ -292,7 +292,7 @@ void flow_cache_flush(void)
 	init_completion(&info.completion);
 
 	local_bh_disable();
-	smp_call_function(flow_cache_flush_per_cpu, &info, 1, 0);
+	(void)smp_call_function(flow_cache_flush_per_cpu, &info, 1, 0);
 	flow_cache_flush_tasklet((unsigned long)&info);
 	local_bh_enable();
 
-
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