[hellogcc] Re: [PATCH] Built kernel without -O2 option
- From: Mingjie Xing <mingjie.xing@xxxxxxxxx>
- To: hellogcc@xxxxxxxxxxxxx
- Date: Mon, 29 Nov 2010 12:27:26 +0800
你这patch很给力。
2010/11/29 Hui Zhu <teawater@xxxxxxxxx>:
> Hi,
>
> Now, there are a lot of ways to debug the Linux kernel with GDB, like
> qemu, kgtp or kgdb and so on.
> But the developer more like add a printk. It have a lot of reason, a big one
> is:
> (gdb) p ret
> $3 = <value optimized out>
> And the code execution order is not right.
>
> This is becuase the Kernel is bult with gcc -O2. Gcc will not
> generate enough debug message with file with -O2.
> So GDB cannot work very well with Linux kernel.
>
> So I make a patch that add a option in "Kernel hacking" called "Close
> GCC optimization". It will make kernel be built without -O2.
>
> I built and use it in i386 and x86_64. I will try to make it OK in other
> arch.
>
> And I will put new patch in here and
> http://code.google.com/p/kgtp/downloads/list
>
> Thanks,
> Hui
>
> Signed-off-by: Hui Zhu <teawater@xxxxxxxxx>
> ---
> Makefile | 2 ++
> arch/x86/crypto/Makefile | 6 ++++++
> arch/x86/include/asm/page_64_types.h | 4 ++++
> arch/x86/include/asm/uaccess_32.h | 4 ++++
> arch/x86/kernel/Makefile | 9 +++++++++
> arch/x86/kvm/Makefile | 5 +++++
> arch/x86/lib/Makefile | 4 ++++
> arch/x86/power/Makefile | 4 ++++
> crypto/Makefile | 4 ++++
> drivers/char/mwave/Makefile | 4 ++++
> drivers/gpu/drm/i915/Makefile | 4 ++++
> drivers/gpu/drm/i915/i915_drv.h | 4 ++++
> drivers/gpu/drm/nouveau/Makefile | 4 ++++
> drivers/gpu/drm/radeon/Makefile | 4 ++++
> drivers/infiniband/hw/qib/Makefile | 4 ++++
> drivers/net/can/sja1000/Makefile | 4 ++++
> drivers/staging/comedi/drivers/Makefile | 4 ++++
> drivers/staging/et131x/et1310_address_map.h | 8 ++++++++
> drivers/staging/rtl8187se/ieee80211/ieee80211.h | 8 ++++++++
> drivers/staging/wlags49_h2/wl_internal.h | 9 ++++++++-
> drivers/usb/gadget/f_loopback.c | 2 ++
> drivers/usb/gadget/f_sourcesink.c | 2 ++
> drivers/usb/gadget/g_zero.h | 2 ++
> drivers/usb/host/Makefile | 4 ++++
> fs/Makefile | 5 +++++
> include/linux/pagemap.h | 2 ++
> init/Kconfig | 1 +
> kernel/Makefile | 4 ++++
> kernel/kfifo.c | 3 +++
> lib/Kconfig.debug | 8 ++++++++
> lib/raid6/Makefile | 6 ++++++
> mm/Makefile | 6 ++++++
> mm/memory.c | 2 ++
> mm/percpu.c | 4 ++++
> net/mac80211/cfg.c | 2 ++
> net/mac80211/iface.c | 12 ++++++++++++
> net/mac80211/mesh.h | 2 ++
> net/mac80211/rx.c | 8 ++++++++
> net/mac80211/sta_info.c | 2 ++
> net/mac80211/status.c | 2 ++
> net/mac80211/tx.c | 4 ++++
> 41 files changed, 181 insertions(+), 1 deletion(-)
>
> --- a/Makefile
> +++ b/Makefile
> @@ -540,8 +540,10 @@ all: vmlinux
> ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
> KBUILD_CFLAGS += -Os
> else
> +ifndef CONFIG_CC_CLOSE_OPTIMIZATION
> KBUILD_CFLAGS += -O2
> endif
> +endif
>
> include $(srctree)/arch/$(SRCARCH)/Makefile
>
> --- a/arch/x86/crypto/Makefile
> +++ b/arch/x86/crypto/Makefile
> @@ -2,6 +2,12 @@
> # Arch-specific CryptoAPI modules.
> #
>
> +ifdef CONFIG_CC_CLOSE_OPTIMIZATION
> +CFLAGS_fpu.o += -O2
> +CFLAGS_aesni-intel_glue.o += -O2
> +CFLAGS_ghash-clmulni-intel_glue.o += -O2
> +endif
> +
> obj-$(CONFIG_CRYPTO_FPU) += fpu.o
>
> obj-$(CONFIG_CRYPTO_AES_586) += aes-i586.o
> --- a/arch/x86/include/asm/page_64_types.h
> +++ b/arch/x86/include/asm/page_64_types.h
> @@ -1,7 +1,11 @@
> #ifndef _ASM_X86_PAGE_64_DEFS_H
> #define _ASM_X86_PAGE_64_DEFS_H
>
> +#ifdef CONFIG_CC_CLOSE_OPTIMIZATION
> +#define THREAD_ORDER 2
> +#else
> #define THREAD_ORDER 1
> +#endif
> #define THREAD_SIZE (PAGE_SIZE << THREAD_ORDER)
> #define CURRENT_MASK (~(THREAD_SIZE - 1))
>
> --- a/arch/x86/include/asm/uaccess_32.h
> +++ b/arch/x86/include/asm/uaccess_32.h
> @@ -209,7 +209,11 @@ static inline unsigned long __must_check
> if (likely(sz == -1 || sz >= n))
> n = _copy_from_user(to, from, n);
> else
> +#ifndef CONFIG_CC_CLOSE_OPTIMIZATION
> copy_from_user_overflow();
> +#else
> + n = -EFAULT;
> +#endif
>
> return n;
> }
> --- a/arch/x86/kernel/Makefile
> +++ b/arch/x86/kernel/Makefile
> @@ -31,6 +31,15 @@ GCOV_PROFILE_hpet.o := n
> GCOV_PROFILE_tsc.o := n
> GCOV_PROFILE_paravirt.o := n
>
> +ifdef CONFIG_CC_CLOSE_OPTIMIZATION
> +CFLAGS_process_$(BITS).o += -O2
> +CFLAGS_entry_$(BITS).o += -O2
> +CFLAGS_traps.o += -O2
> +CFLAGS_i387.o += -O2
> +CFLAGS_xsave.o += -O2
> +CFLAGS_hpet.o += -O2
> +endif
> +
> obj-y := process_$(BITS).o signal.o entry_$(BITS).o
> obj-y += traps.o irq.o irq_$(BITS).o dumpstack_$(BITS).o
> obj-y += time.o ioport.o ldt.o dumpstack.o
> --- a/arch/x86/kvm/Makefile
> +++ b/arch/x86/kvm/Makefile
> @@ -5,6 +5,11 @@ CFLAGS_x86.o := -I.
> CFLAGS_svm.o := -I.
> CFLAGS_vmx.o := -I.
>
> +ifdef CONFIG_CC_CLOSE_OPTIMIZATION
> +CFLAGS_x86.o += -O2
> +CFLAGS_emulate.o += -O2
> +endif
> +
> kvm-y += $(addprefix ../../../virt/kvm/, kvm_main.o
> ioapic.o \
> coalesced_mmio.o irq_comm.o eventfd.o \
> assigned-dev.o)
> --- a/arch/x86/lib/Makefile
> +++ b/arch/x86/lib/Makefile
> @@ -2,6 +2,10 @@
> # Makefile for x86 specific library files.
> #
>
> +ifdef CONFIG_CC_CLOSE_OPTIMIZATION
> +CFLAGS_memmove_64.o += -O2
> +endif
> +
> inat_tables_script = $(srctree)/arch/x86/tools/gen-insn-attr-x86.awk
> inat_tables_maps = $(srctree)/arch/x86/lib/x86-opcode-map.txt
> quiet_cmd_inat_tables = GEN $@
> --- a/arch/x86/power/Makefile
> +++ b/arch/x86/power/Makefile
> @@ -3,5 +3,9 @@
> nostackp := $(call cc-option, -fno-stack-protector)
> CFLAGS_cpu.o := $(nostackp)
>
> +ifdef CONFIG_CC_CLOSE_OPTIMIZATION
> +CFLAGS_cpu.o += -O2
> +endif
> +
> obj-$(CONFIG_PM_SLEEP) += cpu.o
> obj-$(CONFIG_HIBERNATION) += hibernate_$(BITS).o hibernate_asm_$(BITS).o
> --- a/crypto/Makefile
> +++ b/crypto/Makefile
> @@ -2,6 +2,10 @@
> # Cryptographic API
> #
>
> +ifdef CONFIG_CC_CLOSE_OPTIMIZATION
> +CFLAGS_xor.o += -O2
> +endif
> +
> obj-$(CONFIG_CRYPTO) += crypto.o
> crypto-objs := api.o cipher.o compress.o
>
> --- a/drivers/char/mwave/Makefile
> +++ b/drivers/char/mwave/Makefile
> @@ -4,6 +4,10 @@
> # See the README file in this directory for more info. <paulsch@xxxxxxxxxx>
> #
>
> +ifdef CONFIG_CC_CLOSE_OPTIMIZATION
> +CFLAGS_smapi.o += -O2
> +endif
> +
> obj-$(CONFIG_MWAVE) += mwave.o
>
> mwave-y := mwavedd.o smapi.o tp3780i.o 3780i.o
> --- a/drivers/gpu/drm/i915/Makefile
> +++ b/drivers/gpu/drm/i915/Makefile
> @@ -2,6 +2,10 @@
> # Makefile for the drm device driver. This driver provides support for the
> # Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
>
> +ifdef CONFIG_CC_CLOSE_OPTIMIZATION
> +CFLAGS_i915_gem.o += -O2
> +endif
> +
> ccflags-y := -Iinclude/drm
> i915-y := i915_drv.o i915_dma.o i915_irq.o i915_mem.o \
> i915_debugfs.o \
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -1121,7 +1121,11 @@ extern int intel_setup_gmbus(struct drm_
> extern void intel_teardown_gmbus(struct drm_device *dev);
> extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
> extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool
> force_bit);
> +#ifdef CONFIG_CC_CLOSE_OPTIMIZATION
> +static inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter)
> +#else
> extern inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter)
> +#endif
> {
> return container_of(adapter, struct intel_gmbus, adapter)->force_bit;
> }
> --- a/drivers/gpu/drm/nouveau/Makefile
> +++ b/drivers/gpu/drm/nouveau/Makefile
> @@ -2,6 +2,10 @@
> # Makefile for the drm device driver. This driver provides support for the
> # Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
>
> +ifdef CONFIG_CC_CLOSE_OPTIMIZATION
> +CFLAGS_nv50_instmem.o += -O2
> +endif
> +
> ccflags-y := -Iinclude/drm
> nouveau-y := nouveau_drv.o nouveau_state.o nouveau_channel.o nouveau_mem.o \
> nouveau_object.o nouveau_irq.o nouveau_notifier.o \
> --- a/drivers/gpu/drm/radeon/Makefile
> +++ b/drivers/gpu/drm/radeon/Makefile
> @@ -2,6 +2,10 @@
> # Makefile for the drm device driver. This driver provides support for the
> # Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
>
> +ifdef CONFIG_CC_CLOSE_OPTIMIZATION
> +CFLAGS_radeon_gem.o += -O2
> +endif
> +
> ccflags-y := -Iinclude/drm
>
> hostprogs-y := mkregtable
> --- a/drivers/infiniband/hw/qib/Makefile
> +++ b/drivers/infiniband/hw/qib/Makefile
> @@ -1,5 +1,9 @@
> obj-$(CONFIG_INFINIBAND_QIB) += ib_qib.o
>
> +ifdef CONFIG_CC_CLOSE_OPTIMIZATION
> +CFLAGS_qib_iba7322.o += -O2
> +endif
> +
> ib_qib-y := qib_cq.o qib_diag.o qib_dma.o qib_driver.o qib_eeprom.o \
> qib_file_ops.o qib_fs.o qib_init.o qib_intr.o qib_keys.o \
> qib_mad.o qib_mmap.o qib_mr.o qib_pcie.o qib_pio_copy.o \
> --- a/drivers/net/can/sja1000/Makefile
> +++ b/drivers/net/can/sja1000/Makefile
> @@ -2,6 +2,10 @@
> # Makefile for the SJA1000 CAN controller drivers.
> #
>
> +ifdef CONFIG_CC_CLOSE_OPTIMIZATION
> +CFLAGS_kvaser_pci.o += -O2
> +endif
> +
> obj-$(CONFIG_CAN_SJA1000) += sja1000.o
> obj-$(CONFIG_CAN_SJA1000_ISA) += sja1000_isa.o
> obj-$(CONFIG_CAN_SJA1000_PLATFORM) += sja1000_platform.o
> --- a/drivers/staging/comedi/drivers/Makefile
> +++ b/drivers/staging/comedi/drivers/Makefile
> @@ -1,6 +1,10 @@
> # Makefile for individual comedi drivers
> #
>
> +ifdef CONFIG_CC_CLOSE_OPTIMIZATION
> +CFLAGS_cb_pcidas64.o += -O2
> +endif
> +
> # Comedi "helper" modules
> obj-$(CONFIG_COMEDI) += pcm_common.o
>
> --- a/drivers/staging/et131x/et1310_address_map.h
> +++ b/drivers/staging/et131x/et1310_address_map.h
> @@ -212,12 +212,20 @@ struct global_regs { /* Location:
> */
> #define INDEX10(x) ((x) & ET_DMA10_MASK)
> #define INDEX4(x) ((x) & ET_DMA4_MASK)
>
> +#ifdef CONFIG_CC_CLOSE_OPTIMIZATION
> +static inline void add_10bit(u32 *v, int n)
> +#else
> extern inline void add_10bit(u32 *v, int n)
> +#endif
> {
> *v = INDEX10(*v + n) | (*v & ET_DMA10_WRAP);
> }
>
> +#ifdef CONFIG_CC_CLOSE_OPTIMIZATION
> +static inline void add_12bit(u32 *v, int n)
> +#else
> extern inline void add_12bit(u32 *v, int n)
> +#endif
> {
> *v = INDEX12(*v + n) | (*v & ET_DMA12_WRAP);
> }
> --- a/drivers/staging/rtl8187se/ieee80211/ieee80211.h
> +++ b/drivers/staging/rtl8187se/ieee80211/ieee80211.h
> @@ -1221,7 +1221,11 @@ static inline void *ieee80211_priv(struc
> return ((struct ieee80211_device *)netdev_priv(dev))->priv;
> }
>
> +#ifdef CONFIG_CC_CLOSE_OPTIMIZATION
> +static inline int ieee80211_is_empty_essid(const char *essid, int essid_len)
> +#else
> extern inline int ieee80211_is_empty_essid(const char *essid, int essid_len)
> +#endif
> {
> /* Single white space is for Linksys APs */
> if (essid_len == 1 && essid[0] == ' ')
> @@ -1263,7 +1267,11 @@ extern inline int ieee80211_is_valid_mod
> return 0;
> }
>
> +#ifdef CONFIG_CC_CLOSE_OPTIMIZATION
> +static inline int ieee80211_get_hdrlen(u16 fc)
> +#else
> extern inline int ieee80211_get_hdrlen(u16 fc)
> +#endif
> {
> int hdrlen = 24;
>
> --- a/drivers/staging/wlags49_h2/wl_internal.h
> +++ b/drivers/staging/wlags49_h2/wl_internal.h
> @@ -1022,8 +1022,11 @@ static inline void wl_unlock(struct wl_p
> /********************************************************************/
> /* Interrupt enable disable functions */
> /********************************************************************/
> -
> +#ifdef CONFIG_CC_CLOSE_OPTIMIZATION
> +static inline void wl_act_int_on(struct wl_private *lp)
> +#else
> extern inline void wl_act_int_on(struct wl_private *lp)
> +#endif
> {
> /*
> * Only do something when the driver is handling
> @@ -1035,7 +1038,11 @@ extern inline void wl_act_int_on(struct
> }
> }
>
> +#ifdef CONFIG_CC_CLOSE_OPTIMIZATION
> +static inline void wl_act_int_off(struct wl_private *lp)
> +#else
> extern inline void wl_act_int_off(struct wl_private *lp)
> +#endif
> {
> /*
> * Only do something when the driver is handling
> --- a/drivers/usb/gadget/f_loopback.c
> +++ b/drivers/usb/gadget/f_loopback.c
> @@ -376,10 +376,12 @@ int __init loopback_add(struct usb_compo
> sourcesink_driver.bmAttributes |= USB_CONFIG_ATT_WAKEUP;
>
> /* support OTG systems */
> +#ifdef CONFIG_USB_OTG
> if (gadget_is_otg(cdev->gadget)) {
> loopback_driver.descriptors = otg_desc;
> loopback_driver.bmAttributes |= USB_CONFIG_ATT_WAKEUP;
> }
> +#endif
>
> return usb_add_config(cdev, &loopback_driver, loopback_bind_config);
> }
> --- a/drivers/usb/gadget/f_sourcesink.c
> +++ b/drivers/usb/gadget/f_sourcesink.c
> @@ -526,10 +526,12 @@ int __init sourcesink_add(struct usb_com
> sourcesink_driver.bmAttributes |= USB_CONFIG_ATT_WAKEUP;
>
> /* support OTG systems */
> +#ifdef CONFIG_USB_OTG
> if (gadget_is_otg(cdev->gadget)) {
> sourcesink_driver.descriptors = otg_desc;
> sourcesink_driver.bmAttributes |= USB_CONFIG_ATT_WAKEUP;
> }
> +#endif
>
> return usb_add_config(cdev, &sourcesink_driver,
> sourcesink_bind_config);
> }
> --- a/drivers/usb/gadget/g_zero.h
> +++ b/drivers/usb/gadget/g_zero.h
> @@ -10,7 +10,9 @@
>
> /* global state */
> extern unsigned buflen;
> +#ifdef CONFIG_USB_OTG
> extern const struct usb_descriptor_header *otg_desc[];
> +#endif
>
> /* common utilities */
> struct usb_request *alloc_ep_req(struct usb_ep *ep);
> --- a/drivers/usb/host/Makefile
> +++ b/drivers/usb/host/Makefile
> @@ -4,6 +4,10 @@
>
> ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG
>
> +ifdef CONFIG_CC_CLOSE_OPTIMIZATION
> +CFLAGS_ehci-hcd.o += -O2
> +endif
> +
> isp1760-y := isp1760-hcd.o isp1760-if.o
>
> fhci-y := fhci-hcd.o fhci-hub.o fhci-q.o
> --- a/fs/Makefile
> +++ b/fs/Makefile
> @@ -13,6 +13,11 @@ obj-y := open.o read_write.o file_table.
> pnode.o drop_caches.o splice.o sync.o utimes.o \
> stack.o fs_struct.o statfs.o
>
> +ifdef CONFIG_CC_CLOSE_OPTIMIZATION
> +CFLAGS_compat_ioctl.o += -O2
> +CFLAGS_binfmt_elf.o += -O2
> +endif
> +
> ifeq ($(CONFIG_BLOCK),y)
> obj-y += buffer.o bio.o block_dev.o direct-io.o mpage.o ioprio.o
> else
> --- a/include/linux/pagemap.h
> +++ b/include/linux/pagemap.h
> @@ -289,8 +289,10 @@ static inline pgoff_t linear_page_index(
> unsigned long address)
> {
> pgoff_t pgoff;
> +#ifdef CONFIG_HUGETLBFS
> if (unlikely(is_vm_hugetlb_page(vma)))
> return linear_hugepage_index(vma, address);
> +#endif
> pgoff = (address - vma->vm_start) >> PAGE_SHIFT;
> pgoff += vma->vm_pgoff;
> return pgoff >> (PAGE_CACHE_SHIFT - PAGE_SHIFT);
> --- a/init/Kconfig
> +++ b/init/Kconfig
> @@ -817,6 +817,7 @@ endif
>
> config CC_OPTIMIZE_FOR_SIZE
> bool "Optimize for size"
> + depends on !CC_CLOSE_OPTIMIZATION
> default y
> help
> Enabling this option will pass "-Os" instead of "-O2" to gcc
> --- a/kernel/Makefile
> +++ b/kernel/Makefile
> @@ -2,6 +2,10 @@
> # Makefile for the linux kernel.
> #
>
> +ifdef CONFIG_CC_CLOSE_OPTIMIZATION
> +CFLAGS_sched.o += -O2
> +endif
> +
> obj-y = sched.o fork.o exec_domain.o panic.o printk.o \
> cpu.o exit.o itimer.o time.o softirq.o resource.o \
> sysctl.o sysctl_binary.o capability.o ptrace.o timer.o user.o \
> --- a/kernel/kfifo.c
> +++ b/kernel/kfifo.c
> @@ -402,6 +402,9 @@ unsigned int __kfifo_max_r(unsigned int
> return max;
> return len;
> }
> +#ifdef CONFIG_CC_CLOSE_OPTIMIZATION
> +EXPORT_SYMBOL(__kfifo_max_r);
> +#endif
>
> #define __KFIFO_PEEK(data, out, mask) \
> ((data)[(out) & (mask)])
> --- a/lib/Kconfig.debug
> +++ b/lib/Kconfig.debug
> @@ -136,6 +136,14 @@ config DEBUG_SECTION_MISMATCH
> - Enable verbose reporting from modpost to help solving
> the section mismatches reported.
>
> +config CC_CLOSE_OPTIMIZATION
> + bool "Close GCC optimization"
> + default n
> + help
> + Enabling this option will let gcc build kernel without "-O2".
> +
> + If unsure, say N.
> +
> config DEBUG_KERNEL
> bool "Kernel debugging"
> help
> --- a/lib/raid6/Makefile
> +++ b/lib/raid6/Makefile
> @@ -1,3 +1,9 @@
> +ifdef CONFIG_CC_CLOSE_OPTIMIZATION
> +CFLAGS_mmx.o += -O2
> +CFLAGS_sse1.o += -O2
> +CFLAGS_sse2.o += -O2
> +endif
> +
> obj-$(CONFIG_RAID6_PQ) += raid6_pq.o
>
> raid6_pq-y += algos.o recov.o tables.o int1.o int2.o int4.o \
> --- a/mm/Makefile
> +++ b/mm/Makefile
> @@ -2,6 +2,12 @@
> # Makefile for the linux memory manager.
> #
>
> +ifdef CONFIG_CC_CLOSE_OPTIMIZATION
> +CFLAGS_slob.o += -O2
> +CFLAGS_slab.o += -O2
> +CFLAGS_slub.o += -O2
> +endif
> +
> mmu-y := nommu.o
> mmu-$(CONFIG_MMU) := fremap.o highmem.o madvise.o memory.o mincore.o \
> mlock.o mmap.o mprotect.o mremap.o msync.o rmap.o \
> --- a/mm/memory.c
> +++ b/mm/memory.c
> @@ -2697,7 +2697,9 @@ static int do_swap_page(struct mm_struct
>
> if (ksm_might_need_to_copy(page, vma, address)) {
> swapcache = page;
> +#ifdef CONFIG_KSM
> page = ksm_does_need_to_copy(page, vma, address);
> +#endif
>
> if (unlikely(!page)) {
> ret = VM_FAULT_OOM;
> --- a/mm/percpu.c
> +++ b/mm/percpu.c
> @@ -1890,7 +1890,11 @@ void __init percpu_init_late(void)
> int *map;
> const size_t size = PERCPU_DYNAMIC_EARLY_SLOTS *
> sizeof(map[0]);
>
> +#ifdef CONFIG_CC_CLOSE_OPTIMIZATION
> + BUG_ON(size > PAGE_SIZE);
> +#else
> BUILD_BUG_ON(size > PAGE_SIZE);
> +#endif
>
> map = pcpu_mem_alloc(size);
> BUG_ON(!map);
> --- a/net/mac80211/cfg.c
> +++ b/net/mac80211/cfg.c
> @@ -698,6 +698,7 @@ static void sta_apply_parameters(struct
> params->ht_capa,
> &sta->sta.ht_cap);
>
> +#ifdef CONFIG_MAC80211_MESH
> if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
> switch (params->plink_action) {
> case PLINK_ACTION_OPEN:
> @@ -708,6 +709,7 @@ static void sta_apply_parameters(struct
> break;
> }
> }
> +#endif
> }
>
> static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
> --- a/net/mac80211/iface.c
> +++ b/net/mac80211/iface.c
> @@ -277,7 +277,9 @@ static int ieee80211_do_open(struct net_
> local->fif_other_bss++;
> ieee80211_configure_filter(local);
>
> +#ifdef CONFIG_MAC80211_MESH
> ieee80211_start_mesh(sdata);
> +#endif
> } else if (sdata->vif.type == NL80211_IFTYPE_AP) {
> local->fif_pspoll++;
> local->fif_probe_req++;
> @@ -512,7 +514,9 @@ static void ieee80211_do_stop(struct iee
>
> ieee80211_configure_filter(local);
>
> +#ifdef CONFIG_MAC80211_MESH
> ieee80211_stop_mesh(sdata);
> +#endif
> }
> /* fall through */
> default:
> @@ -640,8 +644,10 @@ static void ieee80211_teardown_sdata(str
> __skb_queue_purge(&sdata->fragments[i].skb_list);
> sdata->fragment_next = 0;
>
> +#ifdef CONFIG_MAC80211_MESH
> if (ieee80211_vif_is_mesh(&sdata->vif))
> mesh_rmc_free(sdata);
> +#endif
>
> flushed = sta_info_flush(local, sdata);
> WARN_ON(flushed);
> @@ -817,7 +823,9 @@ static void ieee80211_iface_work(struct
> case NL80211_IFTYPE_MESH_POINT:
> if (!ieee80211_vif_is_mesh(&sdata->vif))
> break;
> +#ifdef CONFIG_MAC80211_MESH
> ieee80211_mesh_rx_queued_mgmt(sdata, skb);
> +#endif
> break;
> default:
> WARN(1, "frame for unexpected interface type");
> @@ -838,7 +846,9 @@ static void ieee80211_iface_work(struct
> case NL80211_IFTYPE_MESH_POINT:
> if (!ieee80211_vif_is_mesh(&sdata->vif))
> break;
> +#ifdef CONFIG_MAC80211_MESH
> ieee80211_mesh_work(sdata);
> +#endif
> break;
> default:
> break;
> @@ -892,8 +902,10 @@ static void ieee80211_setup_sdata(struct
> ieee80211_ibss_setup_sdata(sdata);
> break;
> case NL80211_IFTYPE_MESH_POINT:
> +#ifdef CONFIG_MAC80211_MESH
> if (ieee80211_vif_is_mesh(&sdata->vif))
> ieee80211_mesh_init_sdata(sdata);
> +#endif
> break;
> case NL80211_IFTYPE_MONITOR:
> sdata->dev->type = ARPHRD_IEEE80211_RADIOTAP;
> --- a/net/mac80211/mesh.h
> +++ b/net/mac80211/mesh.h
> @@ -223,8 +223,10 @@ int ieee80211_fill_mesh_addresses(struct
> int ieee80211_new_mesh_header(struct ieee80211s_hdr *meshhdr,
> struct ieee80211_sub_if_data *sdata, char *addr4,
> char *addr5, char *addr6);
> +#ifdef CONFIG_MAC80211_MESH
> int mesh_rmc_check(u8 *addr, struct ieee80211s_hdr *mesh_hdr,
> struct ieee80211_sub_if_data *sdata);
> +#endif
> bool mesh_matches_local(struct ieee802_11_elems *ie,
> struct ieee80211_sub_if_data *sdata);
> void mesh_ids_set_default(struct ieee80211_if_mesh *mesh);
> --- a/net/mac80211/rx.c
> +++ b/net/mac80211/rx.c
> @@ -453,6 +453,14 @@ static int ieee80211_get_mmie_keyidx(str
> }
>
>
> +#ifndef CONFIG_MAC80211_MESH
> +static int mesh_rmc_check(u8 *sa, struct ieee80211s_hdr *mesh_hdr,
> + struct ieee80211_sub_if_data *sdata)
> +{
> + return 0;
> +}
> +#endif
> +
> static ieee80211_rx_result
> ieee80211_rx_mesh_check(struct ieee80211_rx_data *rx)
> {
> --- a/net/mac80211/sta_info.c
> +++ b/net/mac80211/sta_info.c
> @@ -465,8 +465,10 @@ int sta_info_insert_rcu(struct sta_info
> rcu_read_lock();
> mutex_unlock(&local->sta_mtx);
>
> +#ifdef CONFIG_MAC80211_MESH
> if (ieee80211_vif_is_mesh(&sdata->vif))
> mesh_accept_plinks_update(sdata);
> +#endif
>
> return 0;
> out_free:
> --- a/net/mac80211/status.c
> +++ b/net/mac80211/status.c
> @@ -237,8 +237,10 @@ void ieee80211_tx_status(struct ieee8021
> }
>
> rate_control_tx_status(local, sband, sta, skb);
> +#ifdef CONFIG_MAC80211_MESH
> if (ieee80211_vif_is_mesh(&sta->sdata->vif))
> ieee80211s_update_metric(local, sta, skb);
> +#endif
>
> if (!(info->flags & IEEE80211_TX_CTL_INJECTED) &&
> (info->flags & IEEE80211_TX_STAT_ACK))
> --- a/net/mac80211/tx.c
> +++ b/net/mac80211/tx.c
> @@ -1615,6 +1615,7 @@ static void ieee80211_xmit(struct ieee80
> hdr = (struct ieee80211_hdr *) skb->data;
> info->control.vif = &sdata->vif;
>
> +#ifdef CONFIG_MAC80211_MESH
> if (ieee80211_vif_is_mesh(&sdata->vif) &&
> ieee80211_is_data(hdr->frame_control) &&
> !is_multicast_ether_addr(hdr->addr1))
> @@ -1623,6 +1624,7 @@ static void ieee80211_xmit(struct ieee80
> rcu_read_unlock();
> return;
> }
> +#endif
>
> ieee80211_set_qos_hdr(local, skb);
> ieee80211_tx(sdata, skb, false);
> @@ -2278,7 +2280,9 @@ struct sk_buff *ieee80211_beacon_get_tim
> *pos++ = WLAN_EID_SSID;
> *pos++ = 0x0;
>
> +#ifdef CONFIG_MAC80211_MESH
> mesh_mgmt_ies_add(skb, sdata);
> +#endif
> } else {
> WARN_ON(1);
> goto out;
>
>
Other related posts:
