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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-07-26 04:06:00 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-07-26 04:06:00 +0300 |
| commit | c265cc5c3cb2e950910437a846ef59e3a5c2df51 (patch) | |
| tree | 7e16490b3051e36264bde76cedf9f3fad195e1bf /arch | |
| parent | 80f09cf5c14017f98c2e2eaea49ad5d2f5a1399f (diff) | |
| parent | cf2cf0f50c14e86e04cda2c684357eed77922666 (diff) | |
| download | linux-c265cc5c3cb2e950910437a846ef59e3a5c2df51.tar.xz | |
Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cleanups from Ingo Molnar:
"Three small cleanups"
* 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
lguest: Read offset of device_cap later
lguest: Read length of device_cap later
x86: Do away with ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/Kconfig | 3 | ||||
| -rw-r--r-- | arch/x86/lguest/boot.c | 17 |
2 files changed, 6 insertions, 14 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 51b028c1ca96..5977fea2c8b1 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 @@ -638,7 +637,7 @@ 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"); } |