[PATCH] PCI/regs: minimal adjustments for Misra rule 7.2

[Jan Beulich <jbeulich@xxxxxxxx>]

As was recently noticed with PCI_X_STATUS_533MHZ, leaving presently unused
#define-s in non-Misra-compliant shape (7.2 is "A `u' or `U' suffix shall
be applied to all integer constants that are represented in an unsigned
type") is putting new code actually using any of the constants at risk of
then causing Misra scan failures in CI. Adjust those few constants which
strictly require a suffix.

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

--- a/xen/include/xen/pci_regs.h
+++ b/xen/include/xen/pci_regs.h
@@ -272,7 +272,7 @@
 #define PCI_AGP_VERSION                2       /* BCD version number */
 #define PCI_AGP_RFU            3       /* Rest of capability flags */
 #define PCI_AGP_STATUS         4       /* Status register */
-#define  PCI_AGP_STATUS_RQ_MASK        0xff000000      /* Maximum number of 
requests - 1 */
+#define  PCI_AGP_STATUS_RQ_MASK        0xff000000U /* Maximum number of 
requests - 1 */
 #define  PCI_AGP_STATUS_SBA    0x0200  /* Sideband addressing supported */
 #define  PCI_AGP_STATUS_64BIT  0x0020  /* 64-bit addressing supported */
 #define  PCI_AGP_STATUS_FW     0x0010  /* FW transfers supported */
@@ -280,7 +280,7 @@
 #define  PCI_AGP_STATUS_RATE2  0x0002  /* 2x transfer rate supported */
 #define  PCI_AGP_STATUS_RATE1  0x0001  /* 1x transfer rate supported */
 #define PCI_AGP_COMMAND                8       /* Control register */
-#define  PCI_AGP_COMMAND_RQ_MASK 0xff000000  /* Master: Maximum number of 
requests */
+#define  PCI_AGP_COMMAND_RQ_MASK 0xff000000U /* Master: Maximum number of 
requests */
 #define  PCI_AGP_COMMAND_SBA   0x0200  /* Sideband addressing enabled */
 #define  PCI_AGP_COMMAND_AGP   0x0100  /* Allow processing of AGP transactions 
*/
 #define  PCI_AGP_COMMAND_64BIT 0x0020  /* Allow processing of 64-bit addresses 
*/
@@ -582,7 +582,7 @@
 #define  HT_MSI_FLAGS_FIXED    0x2             /* Fixed mapping only */
 #define  HT_MSI_FIXED_ADDR     0x00000000FEE00000ULL   /* Fixed addr */
 #define  HT_MSI_ADDR_LO                0x04            /* Offset to low addr 
bits */
-#define  HT_MSI_ADDR_LO_MASK   0xFFF00000      /* Low address bit mask */
+#define  HT_MSI_ADDR_LO_MASK   0xFFF00000U     /* Low address bit mask */
 #define  HT_MSI_ADDR_HI                0x08            /* Offset to high addr 
bits */
 #define HT_CAPTYPE_DIRECT_ROUTE        0xB0    /* Direct routing configuration 
*/
 #define HT_CAPTYPE_VCSET       0xB8    /* Virtual Channel configuration */