From: "Jinhui Guo" <guojinhui.liam@bytedance.com>
To: <joro@8bytes.org>, <suravee.suthikulpanit@amd.com>, <Ankit.Soni@amd.com>
Cc: <guojinhui.liam@bytedance.com>, <iommu@lists.linux.dev>,
<linux-kernel@vger.kernel.org>, <stable@vger.kernel.org>
Subject: [PATCH v2] iommu/amd: Relay __modify_irte_ga() error in modify_irte_ga()
Date: Fri, 21 Nov 2025 13:21:39 +0800 [thread overview]
Message-ID: <20251121052139.550-1-guojinhui.liam@bytedance.com> (raw)
The return type of __modify_irte_ga() is int, but modify_irte_ga()
treats it as a bool. Casting the int to bool discards the error code.
To fix the issue, change the type of ret to int in modify_irte_ga().
Fixes: 57cdb720eaa5 ("iommu/amd: Do not flush IRTE when only updating isRun and destination fields")
Cc: stable@vger.kernel.org
Signed-off-by: Jinhui Guo <guojinhui.liam@bytedance.com>
Reviewed-by: Ankit Soni <Ankit.Soni@amd.com>
---
v1: https://lore.kernel.org/all/20251120154725.435-1-guojinhui.liam@bytedance.com/
Changelog in v1 -> v2 (suggested by Ankit Soni)
- Trim subject line to the recommanded length
drivers/iommu/amd/iommu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c
index 2e1865daa1ce..a38304f1a8df 100644
--- a/drivers/iommu/amd/iommu.c
+++ b/drivers/iommu/amd/iommu.c
@@ -3354,7 +3354,7 @@ static int __modify_irte_ga(struct amd_iommu *iommu, u16 devid, int index,
static int modify_irte_ga(struct amd_iommu *iommu, u16 devid, int index,
struct irte_ga *irte)
{
- bool ret;
+ int ret;
ret = __modify_irte_ga(iommu, devid, index, irte);
if (ret)
--
2.20.1
next reply other threads:[~2025-11-21 5:22 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-21 5:21 Jinhui Guo [this message]
2025-11-21 8:14 ` Vasant Hegde
2025-11-25 14:14 ` Jörg Rödel
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