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authorJoseph Salisbury <joseph.salisbury@microsoft.com>2021-04-17 02:43:03 +0200
committerWei Liu <wei.liu@kernel.org>2021-04-21 11:49:19 +0200
commit753ed9c95c37d058e50e7d42bbe296ee0bf6670d (patch)
tree8566f7edd4a24ff1f01b79bc12dd37d7dd50304c /drivers/hv
parentx86/hyperv: Move hv_do_rep_hypercall to asm-generic (diff)
downloadlinux-753ed9c95c37d058e50e7d42bbe296ee0bf6670d.tar.xz
linux-753ed9c95c37d058e50e7d42bbe296ee0bf6670d.zip
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 <joseph.salisbury@microsoft.com> Reviewed-by: Michael Kelley <mikelley@microsoft.com> Link: https://lore.kernel.org/r/1618620183-9967-2-git-send-email-joseph.salisbury@linux.microsoft.com Signed-off-by: Wei Liu <wei.liu@kernel.org>
Diffstat (limited to 'drivers/hv')
-rw-r--r--drivers/hv/hv.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c
index e0c522d143a3..e83507f49676 100644
--- a/drivers/hv/hv.c
+++ b/drivers/hv/hv.c
@@ -105,7 +105,7 @@ int hv_post_message(union hv_connection_id connection_id,
*/
put_cpu_ptr(hv_cpu);
- return status & 0xFFFF;
+ return hv_result(status);
}
int hv_synic_alloc(void)