diff options
| author | Joseph Salisbury <[email protected]> | 2021-04-16 17:43:03 -0700 |
|---|---|---|
| committer | Wei Liu <[email protected]> | 2021-04-21 09:49:19 +0000 |
| commit | 753ed9c95c37d058e50e7d42bbe296ee0bf6670d (patch) | |
| tree | 8566f7edd4a24ff1f01b79bc12dd37d7dd50304c /arch/x86/hyperv/irqdomain.c | |
| parent | 6523592cee4650c6aa997d69cd0045a01e07a1ef (diff) | |
drivers: hv: Create a consistent pattern for checking Hyper-V hypercall status
There is not a consistent pattern for checking Hyper-V hypercall status.
Existing code uses a number of variants. The variants work, but a consistent
pattern would improve the readability of the code, and be more conformant
to what the Hyper-V TLFS says about hypercall status.
Implemented new helper functions hv_result(), hv_result_success(), and
hv_repcomp(). Changed the places where hv_do_hypercall() and related variants
are used to use the helper functions.
Signed-off-by: Joseph Salisbury <[email protected]>
Reviewed-by: Michael Kelley <[email protected]>
Link: https://lore.kernel.org/r/1618620183-9967-2-git-send-email-joseph.salisbury@linux.microsoft.com
Signed-off-by: Wei Liu <[email protected]>
Diffstat (limited to 'arch/x86/hyperv/irqdomain.c')
| -rw-r--r-- | arch/x86/hyperv/irqdomain.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/hyperv/irqdomain.c b/arch/x86/hyperv/irqdomain.c index 4421a8d92e23..514fc64e23d5 100644 --- a/arch/x86/hyperv/irqdomain.c +++ b/arch/x86/hyperv/irqdomain.c @@ -63,10 +63,10 @@ static int hv_map_interrupt(union hv_device_id device_id, bool level, local_irq_restore(flags); - if ((status & HV_HYPERCALL_RESULT_MASK) != HV_STATUS_SUCCESS) + if (!hv_result_success(status)) pr_err("%s: hypercall failed, status %lld\n", __func__, status); - return status & HV_HYPERCALL_RESULT_MASK; + return hv_result(status); } static int hv_unmap_interrupt(u64 id, struct hv_interrupt_entry *old_entry) @@ -88,7 +88,7 @@ static int hv_unmap_interrupt(u64 id, struct hv_interrupt_entry *old_entry) status = hv_do_hypercall(HVCALL_UNMAP_DEVICE_INTERRUPT, input, NULL); local_irq_restore(flags); - return status & HV_HYPERCALL_RESULT_MASK; + return hv_result(status); } #ifdef CONFIG_PCI_MSI |