Messages in this thread Patch in this message | | | From | Zehao Zhang <> | Subject | [PATCH] virt/coco/sev-guest: Convert to use time_after macro | Date | Fri, 7 Jul 2023 11:06:35 +0800 |
| |
Use time_after macro instead of opening it for readability.
time_after(a,b) returns true if the time a is after time b.
The macro deals with the time wrapper correctly. If the timer wrap changes in future, there will be no need to alter the driver code.
Signed-off-by: Zehao Zhang <zhangzehao@vivo.com> --- drivers/virt/coco/sev-guest/sev-guest.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/virt/coco/sev-guest/sev-guest.c b/drivers/virt/coco/sev-guest/sev-guest.c index 97dbe715e96a..f17302117c18 100644 --- a/drivers/virt/coco/sev-guest/sev-guest.c +++ b/drivers/virt/coco/sev-guest/sev-guest.c @@ -21,6 +21,7 @@ #include <linux/psp-sev.h> #include <uapi/linux/sev-guest.h> #include <uapi/linux/psp-sev.h> +#include <linux/jiffies.h> #include <asm/svm.h> #include <asm/sev.h> @@ -383,7 +384,7 @@ static int __handle_guest_request(struct snp_guest_dev *snp_dev, u64 exit_code, * message sequence number on a different message. */ case -EAGAIN: - if (jiffies - req_start > SNP_REQ_MAX_RETRY_DURATION) { + if (time_after(jiffies, req_start + SNP_REQ_MAX_RETRY_DURATION)) { rc = -ETIMEDOUT; break; } -- 2.35.3
| |