[patch] hotplug/shpchp_hpc: add parenthesis in SLOT_REG_RSVDZ_MASK

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The SLOT_REG_RSVDZ_MASK macro is normally used like this:
	slot_reg &= ~SLOT_REG_RSVDZ_MASK;
The ~ operator has higher precedence than the | operator from inside the
macro, so it needs parenthesis.

Signed-off-by: Dan Carpenter <error27@xxxxxxxxx>

diff --git a/drivers/pci/hotplug/shpchp_hpc.c b/drivers/pci/hotplug/shpchp_hpc.c
index 5f5e8d2..d3985e7 100644
--- a/drivers/pci/hotplug/shpchp_hpc.c
+++ b/drivers/pci/hotplug/shpchp_hpc.c
@@ -113,7 +113,7 @@
 #define CON_PFAULT_INTR_MASK	(1 << 28)
 #define MRL_CHANGE_SERR_MASK	(1 << 29)
 #define CON_PFAULT_SERR_MASK	(1 << 30)
-#define SLOT_REG_RSVDZ_MASK	(1 << 15) | (7 << 21)
+#define SLOT_REG_RSVDZ_MASK	((1 << 15) | (7 << 21))
 
 /*
  * SHPC Command Code definitnions
--
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