github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-25 15:41:52 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

iommu/amd: Fix union of bitfields in intcapxt support

Browse Source 
All the bitfields in here are overlaid on top of each other since
they're a union. Change the second u64 to be in a struct so it does
the intended thing.

Fixes: b5c3786ee3 ("iommu/amd: Use msi_msg shadow structs")
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20201111144322.1659970-2-dwmw2@infradead.org
This commit is contained in:
David Woodhouse 2020-11-11 14:43:21 +00:00 committed by Thomas Gleixner
parent aec8da04e4
commit 2fb6acf3ed
1 changed files with 9 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
drivers/iommu/amd/init.c
View File

@ -1967,13 +1967,15 @@ static int iommu_setup_msi(struct amd_iommu *iommu)
union intcapxt {
u64 capxt;
u64 reserved_0 : 2,
dest_mode_logical : 1,
reserved_1 : 5,
destid_0_23 : 24,
vector : 8,
reserved_2 : 16,
destid_24_31 : 8;
struct {
u64 reserved_0 : 2,
dest_mode_logical : 1,
reserved_1 : 5,
destid_0_23 : 24,
vector : 8,
reserved_2 : 16,
destid_24_31 : 8;
};
} __attribute__ ((packed));
/*