xen/pci: fix violations of MISRA C:2012 Rule 7.2

The xen sources contains violations of MISRA C:2012 Rule 7.2 whose
headline states:
"A 'u' or 'U' suffix shall be applied to all integer constants
that are represented in an unsigned type".

Add the 'U' suffix to integers literals with unsigned type and also to other
literals used in the same contexts or near violations, when their positive
nature is immediately clear. The latter changes are done for the sake of
uniformity.

Signed-off-by: Gianluca Luparini <gianluca.luparini@bugseng.com>
Signed-off-by: Simone Ballarin <simone.ballarin@bugseng.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Acked-by: Jan Beulich <jbeulich@suse.com>

diff --git a/xen/drivers/passthrough/pci.c b/xen/drivers/passthrough/pci.c
index 07d1986d330ae567ab6e6b92b5995230fd6cac63..95846e84f2bcc8a7eaf0cf9c44c3f031841e9c08 100644 (file)
--- a/xen/drivers/passthrough/pci.c
+++ b/xen/drivers/passthrough/pci.c
@@ -990,8 +990,8 @@ bool_t __init pci_device_detect(u16 seg, u8 bus, u8 dev, u8 func)
 
     vendor = pci_conf_read32(PCI_SBDF(seg, bus, dev, func), PCI_VENDOR_ID);
     /* some broken boards return 0 or ~0 if a slot is empty: */
-    if ( (vendor == 0xffffffff) || (vendor == 0x00000000) ||
-         (vendor == 0x0000ffff) || (vendor == 0xffff0000) )
+    if ( (vendor == 0xffffffffU) || (vendor == 0x00000000U) ||
+         (vendor == 0x0000ffffU) || (vendor == 0xffff0000U) )
         return 0;
     return 1;
 }