diff options
| author | Nicolai Stange <nstange@suse.de> | 2018-07-29 12:15:33 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-08-15 18:12:58 +0200 |
| commit | 18f891ef7a631cac76e25d09a37f582690d852dd (patch) | |
| tree | 602da4a3a65d3e0855bf0d68b61b863ee1a89050 /arch/x86/kernel/apic/apic.c | |
| parent | 06fd9ef44f7c642710dbe482d342c22ee2e1cd13 (diff) | |
x86: Don't include linux/irq.h from asm/hardirq.h
commit 447ae316670230d7d29430e2cbf1f5db4f49d14c upstream
The next patch in this series will have to make the definition of
irq_cpustat_t available to entering_irq().
Inclusion of asm/hardirq.h into asm/apic.h would cause circular header
dependencies like
asm/smp.h
asm/apic.h
asm/hardirq.h
linux/irq.h
linux/topology.h
linux/smp.h
asm/smp.h
or
linux/gfp.h
linux/mmzone.h
asm/mmzone.h
asm/mmzone_64.h
asm/smp.h
asm/apic.h
asm/hardirq.h
linux/irq.h
linux/irqdesc.h
linux/kobject.h
linux/sysfs.h
linux/kernfs.h
linux/idr.h
linux/gfp.h
and others.
This causes compilation errors because of the header guards becoming
effective in the second inclusion: symbols/macros that had been defined
before wouldn't be available to intermediate headers in the #include chain
anymore.
A possible workaround would be to move the definition of irq_cpustat_t
into its own header and include that from both, asm/hardirq.h and
asm/apic.h.
However, this wouldn't solve the real problem, namely asm/harirq.h
unnecessarily pulling in all the linux/irq.h cruft: nothing in
asm/hardirq.h itself requires it. Also, note that there are some other
archs, like e.g. arm64, which don't have that #include in their
asm/hardirq.h.
Remove the linux/irq.h #include from x86' asm/hardirq.h.
Fix resulting compilation errors by adding appropriate #includes to *.c
files as needed.
Note that some of these *.c files could be cleaned up a bit wrt. to their
set of #includes, but that should better be done from separate patches, if
at all.
Signed-off-by: Nicolai Stange <nstange@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86/kernel/apic/apic.c')
| -rw-r--r-- | arch/x86/kernel/apic/apic.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c index 0a10d3ed77ce..348fb896b5b4 100644 --- a/arch/x86/kernel/apic/apic.c +++ b/arch/x86/kernel/apic/apic.c @@ -34,6 +34,7 @@ #include <linux/dmi.h> #include <linux/smp.h> #include <linux/mm.h> +#include <linux/irq.h> #include <asm/trace/irq_vectors.h> #include <asm/irq_remapping.h> @@ -56,6 +57,7 @@ #include <asm/hypervisor.h> #include <asm/cpu_device_id.h> #include <asm/intel-family.h> +#include <asm/irq_regs.h> unsigned int num_processors; |