From: Lan Tianyu <Tianyu.Lan@xxxxxxxxxxxxx> The max flush rep count of HvFlushGuestPhysicalAddressList hypercall is equal with how many entries of union hv_gpa_page_range can be populated into the input parameter page. The origin code lacks parenthesis around PAGE_SIZE - 2 * sizeof(u64). This patch is to fix it. Cc: <stable@xxxxxxxxxxxxxxx> Fixs: cc4edae4b9(x86/hyper-v: Add HvFlushGuestAddressList hypercall support) Signed-off-by: Lan Tianyu <Tianyu.Lan@xxxxxxxxxxxxx> --- arch/x86/include/asm/hyperv-tlfs.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/include/asm/hyperv-tlfs.h b/arch/x86/include/asm/hyperv-tlfs.h index 705dafc2d11a..2bdbbbcfa393 100644 --- a/arch/x86/include/asm/hyperv-tlfs.h +++ b/arch/x86/include/asm/hyperv-tlfs.h @@ -841,7 +841,7 @@ union hv_gpa_page_range { * count is equal with how many entries of union hv_gpa_page_range can * be populated into the input parameter page. */ -#define HV_MAX_FLUSH_REP_COUNT (PAGE_SIZE - 2 * sizeof(u64) / \ +#define HV_MAX_FLUSH_REP_COUNT ((PAGE_SIZE - 2 * sizeof(u64)) / \ sizeof(union hv_gpa_page_range)) struct hv_guest_mapping_flush_list { -- 2.14.4 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel