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author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-05-13 10:20:02 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-05-13 10:20:02 -0700 |
commit | ec059019b7e6ae3926a8e1dec02a62d64dd8c060 (patch) | |
tree | ab60e0f2d21154dda05f58af310a66c94179d70a | |
parent | 1251704a631b62591ad1d1b6ead252e9e597d5f5 (diff) | |
parent | ce4586063f1af780b1c6b7e344907e6f9c1ba59a (diff) | |
download | linux-ec059019b7e6ae3926a8e1dec02a62d64dd8c060.tar.gz linux-ec059019b7e6ae3926a8e1dec02a62d64dd8c060.tar.bz2 linux-ec059019b7e6ae3926a8e1dec02a62d64dd8c060.zip |
Merge branch 'for-linus-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml
Pull UML fixes from Richard Weinberger:
"No new stuff, just fixes"
* 'for-linus-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
um: Add missing NR_CPUS include
um: Fix to call read_initrd after init_bootmem
um: Include kbuild.h instead of duplicating its macros
um: Fix PTRACE_POKEUSER on x86_64
um: Set number of CPUs
um: Fix _print_addr()
-rw-r--r-- | arch/um/Kconfig.common | 5 | ||||
-rw-r--r-- | arch/um/kernel/initrd.c | 4 | ||||
-rw-r--r-- | arch/um/kernel/sysrq.c | 6 | ||||
-rw-r--r-- | arch/um/kernel/um_arch.c | 6 | ||||
-rw-r--r-- | arch/um/os-Linux/skas/process.c | 4 | ||||
-rw-r--r-- | arch/x86/um/ptrace_64.c | 2 | ||||
-rw-r--r-- | arch/x86/um/shared/sysdep/kernel-offsets.h | 9 |
7 files changed, 17 insertions, 19 deletions
diff --git a/arch/um/Kconfig.common b/arch/um/Kconfig.common index ed9c5b5ff028..85f6dd204ab6 100644 --- a/arch/um/Kconfig.common +++ b/arch/um/Kconfig.common @@ -57,3 +57,8 @@ config HZ config SUBARCH string option env="SUBARCH" + +config NR_CPUS + int + range 1 1 + default 1 diff --git a/arch/um/kernel/initrd.c b/arch/um/kernel/initrd.c index 48bae81f8dca..6f6e7896e53f 100644 --- a/arch/um/kernel/initrd.c +++ b/arch/um/kernel/initrd.c @@ -14,7 +14,7 @@ static char *initrd __initdata = NULL; static int load_initrd(char *filename, void *buf, int size); -static int __init read_initrd(void) +int __init read_initrd(void) { void *area; long long size; @@ -46,8 +46,6 @@ static int __init read_initrd(void) return 0; } -__uml_postsetup(read_initrd); - static int __init uml_initrd_setup(char *line, int *add) { initrd = line; diff --git a/arch/um/kernel/sysrq.c b/arch/um/kernel/sysrq.c index a76295f7ede9..6b995e870d55 100644 --- a/arch/um/kernel/sysrq.c +++ b/arch/um/kernel/sysrq.c @@ -20,10 +20,8 @@ static void _print_addr(void *data, unsigned long address, int reliable) { - pr_info(" [<%08lx>]", address); - pr_cont(" %s", reliable ? "" : "? "); - print_symbol("%s", address); - pr_cont("\n"); + pr_info(" [<%08lx>] %s%pF\n", address, reliable ? "" : "? ", + (void *)address); } static const struct stacktrace_ops stackops = { diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c index 4b85acd4020c..64a1fd06f3fd 100644 --- a/arch/um/kernel/um_arch.c +++ b/arch/um/kernel/um_arch.c @@ -338,11 +338,17 @@ int __init linux_main(int argc, char **argv) return start_uml(); } +int __init __weak read_initrd(void) +{ + return 0; +} + void __init setup_arch(char **cmdline_p) { stack_protections((unsigned long) &init_thread_info); setup_physmem(uml_physmem, uml_reserved, physmem_size, highmem); mem_total_pages(physmem_size, iomem_size, highmem); + read_initrd(); paging_init(); strlcpy(boot_command_line, command_line, COMMAND_LINE_SIZE); diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c index 23025d645160..03b3c4cc7735 100644 --- a/arch/um/os-Linux/skas/process.c +++ b/arch/um/os-Linux/skas/process.c @@ -21,6 +21,7 @@ #include <registers.h> #include <skas.h> #include <sysdep/stub.h> +#include <linux/threads.h> int is_skas_winch(int pid, int fd, void *data) { @@ -233,9 +234,6 @@ static int userspace_tramp(void *stack) return 0; } -/* Each element set once, and only accessed by a single processor anyway */ -#undef NR_CPUS -#define NR_CPUS 1 int userspace_pid[NR_CPUS]; int start_userspace(unsigned long stub_stack) diff --git a/arch/x86/um/ptrace_64.c b/arch/x86/um/ptrace_64.c index a5c9910d234f..09a085bde0d4 100644 --- a/arch/x86/um/ptrace_64.c +++ b/arch/x86/um/ptrace_64.c @@ -125,7 +125,7 @@ int poke_user(struct task_struct *child, long addr, long data) else if ((addr >= offsetof(struct user, u_debugreg[0])) && (addr <= offsetof(struct user, u_debugreg[7]))) { addr -= offsetof(struct user, u_debugreg[0]); - addr = addr >> 2; + addr = addr >> 3; if ((addr == 4) || (addr == 5)) return -EIO; child->thread.arch.debugregs[addr] = data; diff --git a/arch/x86/um/shared/sysdep/kernel-offsets.h b/arch/x86/um/shared/sysdep/kernel-offsets.h index 46a9df99f3c5..7e1d35b6ad5c 100644 --- a/arch/x86/um/shared/sysdep/kernel-offsets.h +++ b/arch/x86/um/shared/sysdep/kernel-offsets.h @@ -2,16 +2,9 @@ #include <linux/sched.h> #include <linux/elf.h> #include <linux/crypto.h> +#include <linux/kbuild.h> #include <asm/mman.h> -#define DEFINE(sym, val) \ - asm volatile("\n->" #sym " %0 " #val : : "i" (val)) - -#define BLANK() asm volatile("\n->" : : ) - -#define OFFSET(sym, str, mem) \ - DEFINE(sym, offsetof(struct str, mem)); - void foo(void) { #include <common-offsets.h> |