PCI: Correct PCI_CAP_EXP_ENDPOINT_SIZEOF_V2 value

fb82437fdd8c ("PCI: Change capability register offsets to hex") incorrectly
converted the PCI_CAP_EXP_ENDPOINT_SIZEOF_V2 value from decimal 52 to hex
0x32:

  -#define PCI_CAP_EXP_ENDPOINT_SIZEOF_V2 52      /* v2 endpoints with link end here */
  +#define PCI_CAP_EXP_ENDPOINT_SIZEOF_V2 0x32    /* end of v2 EPs w/ link */

This broke PCI capabilities in a VMM because subsequent ones weren't
DWORD-aligned.

Change PCI_CAP_EXP_ENDPOINT_SIZEOF_V2 to the correct value of 0x34.

fb82437fdd8c was from Baruch Siach <baruch@tkos.co.il>, but this was not
Baruch's fault; it's a mistake I made when applying the patch.

Fixes: fb82437fdd8c ("PCI: Change capability register offsets to hex")
Reported-by: David Woodhouse <dwmw2@infradead.org>
Closes: https://lore.kernel.org/all/3ae392a0158e9d9ab09a1d42150429dd8ca42791.camel@infradead.org
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Krzysztof Wilczyński <kwilczynski@kernel.org>

diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h
index ec1c54b5a31011e215fa93b05049393f4d1991b6..14f634ab9350d5442192162225b5e5202dbe2308 100644 (file)
--- a/include/uapi/linux/pci_regs.h
+++ b/include/uapi/linux/pci_regs.h
@@ -712,7 +712,7 @@
 #define  PCI_EXP_LNKCTL2_HASD          0x0020 /* HW Autonomous Speed Disable */
 #define PCI_EXP_LNKSTA2                0x32    /* Link Status 2 */
 #define  PCI_EXP_LNKSTA2_FLIT          0x0400 /* Flit Mode Status */
-#define PCI_CAP_EXP_ENDPOINT_SIZEOF_V2 0x32    /* end of v2 EPs w/ link */
+#define PCI_CAP_EXP_ENDPOINT_SIZEOF_V2 0x34    /* end of v2 EPs w/ link */
 #define PCI_EXP_SLTCAP2                0x34    /* Slot Capabilities 2 */
 #define  PCI_EXP_SLTCAP2_IBPD  0x00000001 /* In-band PD Disable Supported */
 #define PCI_EXP_SLTCTL2                0x38    /* Slot Control 2 */