From 7e195ba03738dec72fe337dcd3cb3c3c2bd66c30 Mon Sep 17 00:00:00 2001 From: Andre Przywara Date: Fri, 27 Mar 2015 14:15:03 +0000 Subject: [PATCH] irqchip: gicv3-its: Fix device ID encoding When building ITS commands which have the device ID in it, we should mask off the whole upper 32 bits of the first command word before inserting the new value in there. Signed-off-by: Andre Przywara Signed-off-by: Marc Zyngier Link: https://lkml.kernel.org/r/1427465705-17126-3-git-send-email-marc.zyngier@arm.com Signed-off-by: Jason Cooper --- drivers/irqchip/irq-gic-v3-its.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index 7318dba11957..fa0c43660c8b 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -169,7 +169,7 @@ static void its_encode_cmd(struct its_cmd_block *cmd, u8 cmd_nr) static void its_encode_devid(struct its_cmd_block *cmd, u32 devid) { - cmd->raw_cmd[0] &= ~(0xffffUL << 32); + cmd->raw_cmd[0] &= BIT_ULL(32) - 1; cmd->raw_cmd[0] |= ((u64)devid) << 32; } -- 2.39.5