Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux...

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86:
  x86-boot: don't request VBE2 information
  x86: re-add reboot fixups
  x86: fix typo in step.c
  x86: fix merge mistake in i387.c
  x86: clear DF before calling signal handler

diff --git a/arch/x86/boot/vesa.h b/arch/x86/boot/vesa.h
index ff5b73cd406f1b0e4130ae3ae8eb8e38e21a07cb..468e444622c507bd4d48c1e4d3277760e501789f 100644 (file)
--- a/arch/x86/boot/vesa.h
+++ b/arch/x86/boot/vesa.h
@@ -26,17 +26,10 @@ struct vesa_general_info {
        far_ptr video_mode_ptr; /* 14 */
        u16 total_memory;       /* 18 */
 
-       u16 oem_software_rev;   /* 20 */
-       far_ptr oem_vendor_name_ptr;    /* 22 */
-       far_ptr oem_product_name_ptr;   /* 26 */
-       far_ptr oem_product_rev_ptr;    /* 30 */
-
-       u8 reserved[222];       /* 34 */
-       u8 oem_data[256];       /* 256 */
+       u8 reserved[236];       /* 20 */
 } __attribute__ ((packed));
 
 #define VESA_MAGIC ('V' + ('E' << 8) + ('S' << 16) + ('A' << 24))
-#define VBE2_MAGIC ('V' + ('B' << 8) + ('E' << 16) + ('2' << 24))
 
 struct vesa_mode_info {
        u16 mode_attr;          /* 0 */

diff --git a/arch/x86/boot/video-vesa.c b/arch/x86/boot/video-vesa.c
index 662dd2f130684c050d46f6950263ef9b4e7cfc08..419b5c27337463b59ffc6bf5ae545c25c8aaafbc 100644 (file)
--- a/arch/x86/boot/video-vesa.c
+++ b/arch/x86/boot/video-vesa.c
@@ -37,8 +37,6 @@ static int vesa_probe(void)
 
        video_vesa.modes = GET_HEAP(struct mode_info, 0);
 
-       vginfo.signature = VBE2_MAGIC;
-
        ax = 0x4f00;
        di = (size_t)&vginfo;
        asm(INT10

diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
index 1c0503bdfb1a1dbd33080620ec67715644fcf054..5e7771a3ba2f136451a64fc4caccf4ac76519428 100644 (file)
--- a/arch/x86/ia32/ia32_signal.c
+++ b/arch/x86/ia32/ia32_signal.c
@@ -500,7 +500,7 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka,
        regs->ss = __USER32_DS;
 
        set_fs(USER_DS);
-       regs->flags &= ~X86_EFLAGS_TF;
+       regs->flags &= ~(X86_EFLAGS_TF | X86_EFLAGS_DF);
        if (test_thread_flag(TIF_SINGLESTEP))
                ptrace_notify(SIGTRAP);
 
@@ -600,7 +600,7 @@ int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
        regs->ss = __USER32_DS;
 
        set_fs(USER_DS);
-       regs->flags &= ~X86_EFLAGS_TF;
+       regs->flags &= ~(X86_EFLAGS_TF | X86_EFLAGS_DF);
        if (test_thread_flag(TIF_SINGLESTEP))
                ptrace_notify(SIGTRAP);
 

diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c
index 60fe8015756961fa44851f7ad5d701337e4c9a87..d2e39e69aaf860e39e391e899ea349c5e8632ee2 100644 (file)
--- a/arch/x86/kernel/i387.c
+++ b/arch/x86/kernel/i387.c
@@ -261,7 +261,7 @@ static void convert_from_fxsr(struct user_i387_ia32_struct *env,
        }
 #else
        env->fip = fxsave->fip;
-       env->fcs = fxsave->fcs;
+       env->fcs = (u16) fxsave->fcs | ((u32) fxsave->fop << 16);
        env->foo = fxsave->foo;
        env->fos = fxsave->fos;
 #endif

diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 7fd6ac43e4a114a6de9826fe71c7a0cede037c69..55ceb8cdef75c760f1552649e2cd102326760aec 100644 (file)
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -326,6 +326,10 @@ static inline void kb_wait(void)
        }
 }
 
+void __attribute__((weak)) mach_reboot_fixups(void)
+{
+}
+
 static void native_machine_emergency_restart(void)
 {
        int i;
@@ -337,6 +341,8 @@ static void native_machine_emergency_restart(void)
                /* Could also try the reset bit in the Hammer NB */
                switch (reboot_type) {
                case BOOT_KBD:
+                       mach_reboot_fixups(); /* for board specific fixups */
+
                        for (i = 0; i < 10; i++) {
                                kb_wait();
                                udelay(50);

diff --git a/arch/x86/kernel/signal_32.c b/arch/x86/kernel/signal_32.c
index caee1f002fed39476d54e61b3aa6762b28e92c31..0157a6f0f41f501ee19c607aa3a5c593c7824d7f 100644 (file)
--- a/arch/x86/kernel/signal_32.c
+++ b/arch/x86/kernel/signal_32.c
@@ -407,7 +407,7 @@ static int setup_frame(int sig, struct k_sigaction *ka,
         * The tracer may want to single-step inside the
         * handler too.
         */
-       regs->flags &= ~TF_MASK;
+       regs->flags &= ~(TF_MASK | X86_EFLAGS_DF);
        if (test_thread_flag(TIF_SINGLESTEP))
                ptrace_notify(SIGTRAP);
 
@@ -500,7 +500,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
         * The tracer may want to single-step inside the
         * handler too.
         */
-       regs->flags &= ~TF_MASK;
+       regs->flags &= ~(TF_MASK | X86_EFLAGS_DF);
        if (test_thread_flag(TIF_SINGLESTEP))
                ptrace_notify(SIGTRAP);
 

diff --git a/arch/x86/kernel/signal_64.c b/arch/x86/kernel/signal_64.c
index 7347bb14e306bb3ff66385beee9cc1e5c6a15113..56b72fb67f9b63498e67f194a5342ef6306c4f4c 100644 (file)
--- a/arch/x86/kernel/signal_64.c
+++ b/arch/x86/kernel/signal_64.c
@@ -295,7 +295,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
           see include/asm-x86_64/uaccess.h for details. */
        set_fs(USER_DS);
 
-       regs->flags &= ~X86_EFLAGS_TF;
+       regs->flags &= ~(X86_EFLAGS_TF | X86_EFLAGS_DF);
        if (test_thread_flag(TIF_SINGLESTEP))
                ptrace_notify(SIGTRAP);
 #ifdef DEBUG_SIG

diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c
index 2ef1a5f8d6758043b6ce2204da47cb71e5cc1614..9d406cdc847f4da493611d3f48a634e8f868792b 100644 (file)
--- a/arch/x86/kernel/step.c
+++ b/arch/x86/kernel/step.c
@@ -166,7 +166,7 @@ static void enable_step(struct task_struct *child, bool block)
                                  child->thread.debugctlmsr | DEBUGCTLMSR_BTF);
        } else {
            write_debugctlmsr(child,
-                             child->thread.debugctlmsr & ~TIF_DEBUGCTLMSR);
+                             child->thread.debugctlmsr & ~DEBUGCTLMSR_BTF);
 
            if (!child->thread.debugctlmsr)
                    clear_tsk_thread_flag(child, TIF_DEBUGCTLMSR);
@@ -189,7 +189,7 @@ void user_disable_single_step(struct task_struct *child)
         * Make sure block stepping (BTF) is disabled.
         */
        write_debugctlmsr(child,
-                         child->thread.debugctlmsr & ~TIF_DEBUGCTLMSR);
+                         child->thread.debugctlmsr & ~DEBUGCTLMSR_BTF);
 
        if (!child->thread.debugctlmsr)
                clear_tsk_thread_flag(child, TIF_DEBUGCTLMSR);