From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Vinod Koul <vkoul@kernel.org>
Subject: [PATCH 4.14 07/27] dmaengine: acpi: Avoid comparison GSI with Linux vIRQ
Date: Fri, 24 Sep 2021 14:44:01 +0200 [thread overview]
Message-ID: <20210924124329.418770180@linuxfoundation.org> (raw)
In-Reply-To: <20210924124329.173674820@linuxfoundation.org>
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
commit 67db87dc8284070adb15b3c02c1c31d5cf51c5d6 upstream.
Currently the CRST parsing relies on the fact that on most of x86 devices
the IRQ mapping is 1:1 with Linux vIRQ. However, it may be not true for
some. Fix this by converting GSI to Linux vIRQ before checking it.
Fixes: ee8209fd026b ("dma: acpi-dma: parse CSRT to extract additional resources")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210730202715.24375-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/dma/acpi-dma.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
--- a/drivers/dma/acpi-dma.c
+++ b/drivers/dma/acpi-dma.c
@@ -72,10 +72,14 @@ static int acpi_dma_parse_resource_group
si = (const struct acpi_csrt_shared_info *)&grp[1];
- /* Match device by MMIO and IRQ */
+ /* Match device by MMIO */
if (si->mmio_base_low != lower_32_bits(mem) ||
- si->mmio_base_high != upper_32_bits(mem) ||
- si->gsi_interrupt != irq)
+ si->mmio_base_high != upper_32_bits(mem))
+ return 0;
+
+ /* Match device by Linux vIRQ */
+ ret = acpi_register_gsi(NULL, si->gsi_interrupt, si->interrupt_mode, si->interrupt_polarity);
+ if (ret != irq)
return 0;
dev_dbg(&adev->dev, "matches with %.4s%04X (rev %u)\n",
next prev parent reply other threads:[~2021-09-24 12:49 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-24 12:43 [PATCH 4.14 00/27] 4.14.248-rc1 review Greg Kroah-Hartman
2021-09-24 12:43 ` [PATCH 4.14 01/27] s390/bpf: Fix optimizing out zero-extensions Greg Kroah-Hartman
2021-09-24 12:43 ` [PATCH 4.14 02/27] rcu: Fix missed wakeup of exp_wq waiters Greg Kroah-Hartman
2021-09-24 12:43 ` [PATCH 4.14 03/27] apparmor: remove duplicate macro list_entry_is_head() Greg Kroah-Hartman
2021-09-24 12:43 ` [PATCH 4.14 04/27] crypto: talitos - fix max key size for sha384 and sha512 Greg Kroah-Hartman
2021-09-24 12:43 ` [PATCH 4.14 05/27] sctp: validate chunk size in __rcv_asconf_lookup Greg Kroah-Hartman
2021-09-24 12:44 ` [PATCH 4.14 06/27] sctp: add param size validation for SCTP_PARAM_SET_PRIMARY Greg Kroah-Hartman
2021-09-24 12:44 ` Greg Kroah-Hartman [this message]
2021-09-24 12:44 ` [PATCH 4.14 08/27] thermal/drivers/exynos: Fix an error code in exynos_tmu_probe() Greg Kroah-Hartman
2021-09-24 12:44 ` [PATCH 4.14 09/27] 9p/trans_virtio: Remove sysfs file on probe failure Greg Kroah-Hartman
2021-09-24 12:44 ` [PATCH 4.14 10/27] prctl: allow to setup brk for et_dyn executables Greg Kroah-Hartman
2021-09-24 12:44 ` [PATCH 4.14 11/27] profiling: fix shift-out-of-bounds bugs Greg Kroah-Hartman
2021-09-24 12:44 ` [PATCH 4.14 12/27] pwm: lpc32xx: Dont modify HW state in .probe() after the PWM chip was registered Greg Kroah-Hartman
2021-09-24 12:44 ` [PATCH 4.14 13/27] pwm: mxs: " Greg Kroah-Hartman
2021-09-24 12:44 ` [PATCH 4.14 14/27] Kconfig.debug: drop selecting non-existing HARDLOCKUP_DETECTOR_ARCH Greg Kroah-Hartman
2021-09-24 12:44 ` [PATCH 4.14 15/27] parisc: Move pci_dev_is_behind_card_dino to where it is used Greg Kroah-Hartman
2021-09-24 12:44 ` [PATCH 4.14 16/27] dmaengine: ioat: depends on !UML Greg Kroah-Hartman
2021-09-24 12:44 ` [PATCH 4.14 17/27] dmaengine: xilinx_dma: Set DMA mask for coherent APIs Greg Kroah-Hartman
2021-09-24 12:44 ` [PATCH 4.14 18/27] ceph: lockdep annotations for try_nonblocking_invalidate Greg Kroah-Hartman
2021-09-24 12:44 ` [PATCH 4.14 19/27] nilfs2: fix memory leak in nilfs_sysfs_create_device_group Greg Kroah-Hartman
2021-09-24 12:44 ` [PATCH 4.14 20/27] nilfs2: fix NULL pointer in nilfs_##name##_attr_release Greg Kroah-Hartman
2021-09-24 12:44 ` [PATCH 4.14 21/27] nilfs2: fix memory leak in nilfs_sysfs_create_##name##_group Greg Kroah-Hartman
2021-09-24 12:44 ` [PATCH 4.14 22/27] nilfs2: fix memory leak in nilfs_sysfs_delete_##name##_group Greg Kroah-Hartman
2021-09-24 12:44 ` [PATCH 4.14 23/27] nilfs2: fix memory leak in nilfs_sysfs_create_snapshot_group Greg Kroah-Hartman
2021-09-24 12:44 ` [PATCH 4.14 24/27] nilfs2: fix memory leak in nilfs_sysfs_delete_snapshot_group Greg Kroah-Hartman
2021-09-24 12:44 ` [PATCH 4.14 25/27] pwm: rockchip: Dont modify HW state in .remove() callback Greg Kroah-Hartman
2021-09-24 12:44 ` [PATCH 4.14 26/27] blk-throttle: fix UAF by deleteing timer in blk_throtl_exit() Greg Kroah-Hartman
2021-09-24 12:44 ` [PATCH 4.14 27/27] drm/nouveau/nvkm: Replace -ENOSYS with -ENODEV Greg Kroah-Hartman
2021-09-24 13:55 ` [PATCH 4.14 00/27] 4.14.248-rc1 review Daniel Díaz
2021-09-24 17:51 ` Jon Hunter
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