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sched/topology: Fix percpu data types in struct sd_data & struct s_data 

The percpu members of struct sd_data and s_data are declared as:

	struct ... ** __percpu member;

So their type is:

	__percpu pointer to pointer to struct ...

But looking at how they're used, their type should be:

	pointer to __percpu pointer to struct ...

and they should thus be declared as:

	struct ... * __percpu *member;

So fix the placement of '__percpu' in the definition of these
structures.

This addresses a bunch of Sparse's warnings like:

	warning: incorrect type in initializer (different address spaces)
	  expected void const [noderef] <asn:3> *__vpp_verify
	  got struct sched_domain **

Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20190118144936.79158-1-luc.vanoostenryck@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Luc Van Oostenryck 2019-01-18 15:49:36 +01:00 committed by Ingo Molnar
parent d0fe0b9c45
commit 99687cdbb3
2 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
include/linux/sched/topology.h
View File

@ -176,10 +176,10 @@ typedef int (*sched_domain_flags_f)(void);
#define SDTL_OVERLAP 0x01 #define SDTL_OVERLAP 0x01
struct sd_data { struct sd_data {
struct sched_domain **__percpu sd; struct sched_domain *__percpu *sd;
struct sched_domain_shared **__percpu sds; struct sched_domain_shared *__percpu *sds;
struct sched_group **__percpu sg; struct sched_group *__percpu *sg;
struct sched_group_capacity **__percpu sgc; struct sched_group_capacity *__percpu *sgc;
}; };
struct sched_domain_topology_level { struct sched_domain_topology_level {

2
kernel/sched/topology.c
View File

@ -705,7 +705,7 @@ cpu_attach_domain(struct sched_domain *sd, struct root_domain *rd, int cpu)
} }
struct s_data { struct s_data {
struct sched_domain ** __percpu sd; struct sched_domain * __percpu *sd;
struct root_domain *rd; struct root_domain *rd;
}; };