[GIT PULL] x86/cleanups for v4.8

[Ingo Molnar]

Linus,

Please pull the latest x86-cleanups-for-linus git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 
x86-cleanups-for-linus

   # HEAD: cf2cf0f50c14e86e04cda2c684357eed77922666 lguest: Read offset of 
device_cap later

Three small cleanups.

 Thanks,

        Ingo

------------------>
Linus Walleij (1):
      x86: Do away with ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB

Paul Bolle (2):
      lguest: Read length of device_cap later
      lguest: Read offset of device_cap later


 arch/x86/Kconfig       |  3 +--
 arch/x86/lguest/boot.c | 17 +++++------------
 2 files changed, 6 insertions(+), 14 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 0a7b885964ba..607382b95372 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -49,7 +49,6 @@ config X86
        select ARCH_WANTS_DYNAMIC_TASK_STRUCT
        select ARCH_WANT_FRAME_POINTERS
        select ARCH_WANT_IPC_PARSE_VERSION      if X86_32
-       select ARCH_WANT_OPTIONAL_GPIOLIB
        select BUILDTIME_EXTABLE_SORT
        select CLKEVT_I8253
        select CLKSRC_I8253                     if X86_32
@@ -643,7 +642,7 @@ config STA2X11
        select X86_DMA_REMAP
        select SWIOTLB
        select MFD_STA2X11
-       select ARCH_REQUIRE_GPIOLIB
+       select GPIOLIB
        default n
        ---help---
          This adds support for boards based on the STA2X11 IO-Hub,
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index 3847e736702e..25da5bc8d83d 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -1233,8 +1233,6 @@ static void write_bar_via_cfg(u32 cfg_offset, u32 off, 
u32 val)
 static void probe_pci_console(void)
 {
        u8 cap, common_cap = 0, device_cap = 0;
-       /* Offset within BAR0 */
-       u32 device_offset;
        u32 device_len;
 
        /* Avoid recursive printk into here. */
@@ -1258,24 +1256,16 @@ static void probe_pci_console(void)
                u8 vndr = read_pci_config_byte(0, 1, 0, cap);
                if (vndr == PCI_CAP_ID_VNDR) {
                        u8 type, bar;
-                       u32 offset, length;
 
                        type = read_pci_config_byte(0, 1, 0,
                            cap + offsetof(struct virtio_pci_cap, cfg_type));
                        bar = read_pci_config_byte(0, 1, 0,
                            cap + offsetof(struct virtio_pci_cap, bar));
-                       offset = read_pci_config(0, 1, 0,
-                           cap + offsetof(struct virtio_pci_cap, offset));
-                       length = read_pci_config(0, 1, 0,
-                           cap + offsetof(struct virtio_pci_cap, length));
 
                        switch (type) {
                        case VIRTIO_PCI_CAP_DEVICE_CFG:
-                               if (bar == 0) {
+                               if (bar == 0)
                                        device_cap = cap;
-                                       device_offset = offset;
-                                       device_len = length;
-                               }
                                break;
                        case VIRTIO_PCI_CAP_PCI_CFG:
                                console_access_cap = cap;
@@ -1297,13 +1287,16 @@ static void probe_pci_console(void)
         * emerg_wr.  If it doesn't support VIRTIO_CONSOLE_F_EMERG_WRITE
         * it should ignore the access.
         */
+       device_len = read_pci_config(0, 1, 0,
+                       device_cap + offsetof(struct virtio_pci_cap, length));
        if (device_len < (offsetof(struct virtio_console_config, emerg_wr)
                          + sizeof(u32))) {
                printk(KERN_ERR "lguest: console missing emerg_wr field\n");
                return;
        }
 
-       console_cfg_offset = device_offset;
+       console_cfg_offset = read_pci_config(0, 1, 0,
+                       device_cap + offsetof(struct virtio_pci_cap, offset));
        printk(KERN_INFO "lguest: Console via virtio-pci emerg_wr\n");
 }