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Subject[PATCH 019/114] x86: clean up apic->acpi_madt_oem_check methods
Date
Impact: refactor code

x86 subarchitectures each defined a "acpi_madt_oem_check()" method,
which could be an inline function, or an extern, or a static function,
and which was also the name of a genapic field.

Untangle this namespace spaghetti by setting ->acpi_madt_oem_check()
to NULL on those subarchitectures that have no detection quirks,
and rename the other ones (summit, es7000) that do.

Also change default_acpi_madt_oem_check() to handle NULL entries,
and clean its control flow up as well.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
arch/x86/include/asm/es7000/mpparse.h | 2 +-
arch/x86/include/asm/genapic.h | 2 +-
arch/x86/include/asm/mach-default/mach_mpparse.h | 2 +-
arch/x86/include/asm/mach-generic/mach_mpparse.h | 2 +-
arch/x86/include/asm/summit/mpparse.h | 2 +-
arch/x86/kernel/acpi/boot.c | 3 +-
arch/x86/kernel/genapic_64.c | 2 +-
arch/x86/mach-generic/bigsmp.c | 2 +-
arch/x86/mach-generic/default.c | 2 +-
arch/x86/mach-generic/es7000.c | 6 ++--
arch/x86/mach-generic/numaq.c | 8 +------
arch/x86/mach-generic/probe.c | 24 ++++++++++++---------
arch/x86/mach-generic/summit.c | 2 +-
13 files changed, 29 insertions(+), 30 deletions(-)
diff --git a/arch/x86/include/asm/es7000/mpparse.h b/arch/x86/include/asm/es7000/mpparse.h
index c1629b0..30692c4 100644
--- a/arch/x86/include/asm/es7000/mpparse.h
+++ b/arch/x86/include/asm/es7000/mpparse.h
@@ -9,7 +9,7 @@ extern void unmap_unisys_acpi_oem_table(unsigned long oem_addr);
extern void setup_unisys(void);

#ifndef CONFIG_X86_GENERICARCH
-extern int acpi_madt_oem_check(char *oem_id, char *oem_table_id);
+extern int default_acpi_madt_oem_check(char *oem_id, char *oem_table_id);
extern int mps_oem_check(struct mpc_table *mpc, char *oem, char *productid);
#endif

diff --git a/arch/x86/include/asm/genapic.h b/arch/x86/include/asm/genapic.h
index 26c5e82..108abdf 100644
--- a/arch/x86/include/asm/genapic.h
+++ b/arch/x86/include/asm/genapic.h
@@ -103,7 +103,7 @@ extern struct genapic apic_flat;
extern struct genapic apic_physflat;
extern struct genapic apic_x2apic_cluster;
extern struct genapic apic_x2apic_phys;
-extern int acpi_madt_oem_check(char *, char *);
+extern int default_acpi_madt_oem_check(char *, char *);

extern void apic_send_IPI_self(int vector);

diff --git a/arch/x86/include/asm/mach-default/mach_mpparse.h b/arch/x86/include/asm/mach-default/mach_mpparse.h
index c70a263..8fa0177 100644
--- a/arch/x86/include/asm/mach-default/mach_mpparse.h
+++ b/arch/x86/include/asm/mach-default/mach_mpparse.h
@@ -8,7 +8,7 @@ mps_oem_check(struct mpc_table *mpc, char *oem, char *productid)
}

/* Hook from generic ACPI tables.c */
-static inline int acpi_madt_oem_check(char *oem_id, char *oem_table_id)
+static inline int default_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
{
return 0;
}
diff --git a/arch/x86/include/asm/mach-generic/mach_mpparse.h b/arch/x86/include/asm/mach-generic/mach_mpparse.h
index 9444ab8..f497d96 100644
--- a/arch/x86/include/asm/mach-generic/mach_mpparse.h
+++ b/arch/x86/include/asm/mach-generic/mach_mpparse.h
@@ -4,6 +4,6 @@

extern int mps_oem_check(struct mpc_table *, char *, char *);

-extern int acpi_madt_oem_check(char *, char *);
+extern int default_acpi_madt_oem_check(char *, char *);

#endif /* _ASM_X86_MACH_GENERIC_MACH_MPPARSE_H */
diff --git a/arch/x86/include/asm/summit/mpparse.h b/arch/x86/include/asm/summit/mpparse.h
index 380e86c..555ed82 100644
--- a/arch/x86/include/asm/summit/mpparse.h
+++ b/arch/x86/include/asm/summit/mpparse.h
@@ -27,7 +27,7 @@ static inline int mps_oem_check(struct mpc_table *mpc, char *oem,
}

/* Hook from generic ACPI tables.c */
-static inline int acpi_madt_oem_check(char *oem_id, char *oem_table_id)
+static inline int summit_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
{
if (!strncmp(oem_id, "IBM", 3) &&
(!strncmp(oem_table_id, "SERVIGIL", 8)
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 4cb5964..314fe0d 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -239,7 +239,8 @@ static int __init acpi_parse_madt(struct acpi_table_header *table)
madt->address);
}

- acpi_madt_oem_check(madt->header.oem_id, madt->header.oem_table_id);
+ default_acpi_madt_oem_check(madt->header.oem_id,
+ madt->header.oem_table_id);

return 0;
}
diff --git a/arch/x86/kernel/genapic_64.c b/arch/x86/kernel/genapic_64.c
index 2b98638..060945b 100644
--- a/arch/x86/kernel/genapic_64.c
+++ b/arch/x86/kernel/genapic_64.c
@@ -68,7 +68,7 @@ void apic_send_IPI_self(int vector)
__send_IPI_shortcut(APIC_DEST_SELF, vector, APIC_DEST_PHYSICAL);
}

-int __init acpi_madt_oem_check(char *oem_id, char *oem_table_id)
+int __init default_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
{
int i;

diff --git a/arch/x86/mach-generic/bigsmp.c b/arch/x86/mach-generic/bigsmp.c
index 13e82bc..22c3608 100644
--- a/arch/x86/mach-generic/bigsmp.c
+++ b/arch/x86/mach-generic/bigsmp.c
@@ -61,7 +61,7 @@ struct genapic apic_bigsmp = {

.name = "bigsmp",
.probe = probe_bigsmp,
- .acpi_madt_oem_check = acpi_madt_oem_check,
+ .acpi_madt_oem_check = NULL,
.apic_id_registered = apic_id_registered,

.int_delivery_mode = INT_DELIVERY_MODE,
diff --git a/arch/x86/mach-generic/default.c b/arch/x86/mach-generic/default.c
index d5fec76..cfec349 100644
--- a/arch/x86/mach-generic/default.c
+++ b/arch/x86/mach-generic/default.c
@@ -28,7 +28,7 @@ struct genapic apic_default = {

.name = "default",
.probe = probe_default,
- .acpi_madt_oem_check = acpi_madt_oem_check,
+ .acpi_madt_oem_check = NULL,
.apic_id_registered = apic_id_registered,

.int_delivery_mode = INT_DELIVERY_MODE,
diff --git a/arch/x86/mach-generic/es7000.c b/arch/x86/mach-generic/es7000.c
index 4a404ea..23fe6f1 100644
--- a/arch/x86/mach-generic/es7000.c
+++ b/arch/x86/mach-generic/es7000.c
@@ -57,7 +57,7 @@ mps_oem_check(struct mpc_table *mpc, char *oem, char *productid)

#ifdef CONFIG_ACPI
/* Hook from generic ACPI tables.c */
-static int __init acpi_madt_oem_check(char *oem_id, char *oem_table_id)
+static int __init es7000_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
{
unsigned long oem_addr = 0;
int check_dsdt;
@@ -81,7 +81,7 @@ static int __init acpi_madt_oem_check(char *oem_id, char *oem_table_id)
return ret;
}
#else
-static int __init acpi_madt_oem_check(char *oem_id, char *oem_table_id)
+static int __init es7000_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
{
return 0;
}
@@ -104,7 +104,7 @@ struct genapic apic_es7000 = {

.name = "es7000",
.probe = probe_es7000,
- .acpi_madt_oem_check = acpi_madt_oem_check,
+ .acpi_madt_oem_check = es7000_acpi_madt_oem_check,
.apic_id_registered = apic_id_registered,

.int_delivery_mode = INT_DELIVERY_MODE,
diff --git a/arch/x86/mach-generic/numaq.c b/arch/x86/mach-generic/numaq.c
index fa486ca..9691b4e 100644
--- a/arch/x86/mach-generic/numaq.c
+++ b/arch/x86/mach-generic/numaq.c
@@ -31,12 +31,6 @@ static int probe_numaq(void)
return found_numaq;
}

-/* Hook from generic ACPI tables.c */
-static int acpi_madt_oem_check(char *oem_id, char *oem_table_id)
-{
- return 0;
-}
-
static void vector_allocation_domain(int cpu, cpumask_t *retmask)
{
/* Careful. Some cpus do not strictly honor the set of cpus
@@ -54,7 +48,7 @@ struct genapic apic_numaq = {

.name = "NUMAQ",
.probe = probe_numaq,
- .acpi_madt_oem_check = acpi_madt_oem_check,
+ .acpi_madt_oem_check = NULL,
.apic_id_registered = apic_id_registered,

.int_delivery_mode = INT_DELIVERY_MODE,
diff --git a/arch/x86/mach-generic/probe.c b/arch/x86/mach-generic/probe.c
index 82bf0f5..a21e2b1 100644
--- a/arch/x86/mach-generic/probe.c
+++ b/arch/x86/mach-generic/probe.c
@@ -128,20 +128,24 @@ int __init mps_oem_check(struct mpc_table *mpc, char *oem, char *productid)
return 0;
}

-int __init acpi_madt_oem_check(char *oem_id, char *oem_table_id)
+int __init default_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
{
int i;
+
for (i = 0; apic_probe[i]; ++i) {
- if (apic_probe[i]->acpi_madt_oem_check(oem_id, oem_table_id)) {
- if (!cmdline_apic) {
- apic = apic_probe[i];
- if (x86_quirks->update_genapic)
- x86_quirks->update_genapic();
- printk(KERN_INFO "Switched to APIC driver `%s'.\n",
- apic->name);
- }
- return 1;
+ if (!apic_probe[i]->acpi_madt_oem_check)
+ continue;
+ if (!apic_probe[i]->acpi_madt_oem_check(oem_id, oem_table_id))
+ continue;
+
+ if (!cmdline_apic) {
+ apic = apic_probe[i];
+ if (x86_quirks->update_genapic)
+ x86_quirks->update_genapic();
+ printk(KERN_INFO "Switched to APIC driver `%s'.\n",
+ apic->name);
}
+ return 1;
}
return 0;
}
diff --git a/arch/x86/mach-generic/summit.c b/arch/x86/mach-generic/summit.c
index 479c1d4..0eea9fb 100644
--- a/arch/x86/mach-generic/summit.c
+++ b/arch/x86/mach-generic/summit.c
@@ -41,7 +41,7 @@ struct genapic apic_summit = {

.name = "summit",
.probe = probe_summit,
- .acpi_madt_oem_check = acpi_madt_oem_check,
+ .acpi_madt_oem_check = summit_acpi_madt_oem_check,
.apic_id_registered = apic_id_registered,

.int_delivery_mode = INT_DELIVERY_MODE,
--
1.6.0.2


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