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authorThomas Gleixner <tglx@linutronix.de>2017-09-14 00:29:05 +0300
committerThomas Gleixner <tglx@linutronix.de>2017-09-25 21:38:22 +0300
commit07557ccb8c83f315e409ddee181e9ffbf87c6ad1 (patch)
tree59d738d6d53f618b74763d0f5691310795d0ad21 /include/linux/irqdesc.h
parente0b477941d130576d9daf31160dab6e34335b10a (diff)
downloadlinux-07557ccb8c83f315e409ddee181e9ffbf87c6ad1.tar.xz
genirq/msi: Capture device name for debugfs
For debugging the allocation of unused or potentially leaked interrupt descriptor it's helpful to have some information about the site which allocated them. In case of MSI this is simple because the caller hands the device struct pointer into the domain allocation function. Duplicate the device name and show it in the debugfs entry of the interrupt descriptor. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Juergen Gross <jgross@suse.com> Tested-by: Yu Chen <yu.c.chen@intel.com> Acked-by: Juergen Gross <jgross@suse.com> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Alok Kataria <akataria@vmware.com> Cc: Joerg Roedel <joro@8bytes.org> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Christoph Hellwig <hch@lst.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Rui Zhang <rui.zhang@intel.com> Cc: "K. Y. Srinivasan" <kys@microsoft.com> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Len Brown <lenb@kernel.org> Link: https://lkml.kernel.org/r/20170913213152.433038426@linutronix.de
Diffstat (limited to 'include/linux/irqdesc.h')
-rw-r--r--include/linux/irqdesc.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h
index 3e90a094798d..b55b113c049b 100644
--- a/include/linux/irqdesc.h
+++ b/include/linux/irqdesc.h
@@ -93,6 +93,7 @@ struct irq_desc {
#endif
#ifdef CONFIG_GENERIC_IRQ_DEBUGFS
struct dentry *debugfs_file;
+ const char *dev_name;
#endif
#ifdef CONFIG_SPARSE_IRQ
struct rcu_head rcu;