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[Qemu-devel] [PATCH 2/9] s390x/pci: avoid sign extension in stpcifc
From: |
Cornelia Huck |
Subject: |
[Qemu-devel] [PATCH 2/9] s390x/pci: avoid sign extension in stpcifc |
Date: |
Wed, 28 Jan 2015 15:31:31 +0100 |
From: Frank Blaschka <address@hidden>
This patch avoids sign extension and fixes a data conversion
bug in stpcifc. Both issues where found by Coverity.
Reviewed-by: Markus Armbruster <address@hidden>
Signed-off-by: Frank Blaschka <address@hidden>
Signed-off-by: Cornelia Huck <address@hidden>
---
hw/s390x/s390-pci-inst.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/hw/s390x/s390-pci-inst.c b/hw/s390x/s390-pci-inst.c
index 5ea13e5..c269184 100644
--- a/hw/s390x/s390-pci-inst.c
+++ b/hw/s390x/s390-pci-inst.c
@@ -784,10 +784,10 @@ int stpcifc_service_call(S390CPU *cpu, uint8_t r1,
uint64_t fiba)
stq_p(&fib.aisb, pbdev->routes.adapter.summary_addr);
stq_p(&fib.fmb_addr, pbdev->fmb_addr);
- data = (pbdev->isc << 28) | (pbdev->noi << 16) |
- (pbdev->routes.adapter.ind_offset << 8) | (pbdev->sum << 7) |
- pbdev->routes.adapter.summary_offset;
- stw_p(&fib.data, data);
+ data = ((uint32_t)pbdev->isc << 28) | ((uint32_t)pbdev->noi << 16) |
+ ((uint32_t)pbdev->routes.adapter.ind_offset << 8) |
+ ((uint32_t)pbdev->sum << 7) | pbdev->routes.adapter.summary_offset;
+ stl_p(&fib.data, data);
if (pbdev->fh >> ENABLE_BIT_OFFSET) {
fib.fc |= 0x80;
--
1.7.9.5
- [Qemu-devel] [PATCH 0/9] s390x bugfixes and cleanup, Cornelia Huck, 2015/01/28
- [Qemu-devel] [PATCH 1/9] s390: Plug memory leak on s390_pci_generate_event() error path, Cornelia Huck, 2015/01/28
- [Qemu-devel] [PATCH 6/9] s390x/kvm: unknown DIAGNOSE code should give a specification exception, Cornelia Huck, 2015/01/28
- [Qemu-devel] [PATCH 4/9] s390x/pci: fix dma notifications in rpcit instruction, Cornelia Huck, 2015/01/28
- [Qemu-devel] [PATCH 8/9] pc-bios/s390-ccw: fix sparse warnings, Cornelia Huck, 2015/01/28
- [Qemu-devel] [PATCH 3/9] s390x/pci: check for invalid function handle, Cornelia Huck, 2015/01/28
- [Qemu-devel] [PATCH 5/9] s390x/kvm: Fix diag-308 register decoding, Cornelia Huck, 2015/01/28
- [Qemu-devel] [PATCH 2/9] s390x/pci: avoid sign extension in stpcifc,
Cornelia Huck <=
- [Qemu-devel] [PATCH 7/9] s390x/ipl: Improved code indentation in s390_ipl_init(), Cornelia Huck, 2015/01/28
- [Qemu-devel] [PATCH 9/9] pc-bios/s390-ccw: update binary, Cornelia Huck, 2015/01/28