diff options
| author | Nam Cao <namcao@linutronix.de> | 2026-03-02 01:39:48 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-03-19 16:15:27 +0100 |
| commit | 1381c463b5ad790a440a83b82f87cae76f20f871 (patch) | |
| tree | 463f40dfc00d60413abf535c632ceaa83a66ddf4 | |
| parent | a1f31d7e2a2f3f118b6980a1ddc7008387bc6e50 (diff) | |
powerpc/pseries: Correct MSI allocation tracking
commit 35e4f2a17eb40288f9bcdb09549fa04a63a96279 upstream.
The per-device MSI allocation calculation in pseries_irq_domain_alloc()
is clearly wrong. It can still happen to work when nr_irqs is 1.
Correct it.
Fixes: c0215e2d72de ("powerpc/pseries: Fix MSI-X allocation failure when quota is exceeded")
Cc: stable@vger.kernel.org
Signed-off-by: Nam Cao <namcao@linutronix.de>
Reviewed-by: Mahesh Salgaonkar <mahesh@linux.ibm.com>
Reviewed-by: Nilay Shroff <nilay@linux.ibm.com>
[maddy: Fixed Nilay's reviewed-by tag]
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20260302003948.1452016-1-namcao@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | arch/powerpc/platforms/pseries/msi.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/pseries/msi.c b/arch/powerpc/platforms/pseries/msi.c index edc30cda5dbc..56f17296545a 100644 --- a/arch/powerpc/platforms/pseries/msi.c +++ b/arch/powerpc/platforms/pseries/msi.c @@ -605,7 +605,7 @@ static int pseries_irq_domain_alloc(struct irq_domain *domain, unsigned int virq &pseries_msi_irq_chip, pseries_dev); } - pseries_dev->msi_used++; + pseries_dev->msi_used += nr_irqs; return 0; out: |