diff options
author | Jeff Dike <jdike@addtoit.com> | 2007-10-16 01:27:00 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-16 09:43:05 -0700 |
commit | ba180fd437156f7fd8cfb2fdd021d949eeef08d6 (patch) | |
tree | b9f38b9cdd7a5b1aacf00341d1948314663c5871 /arch/um/sys-i386/bugs.c | |
parent | 77bf4400319db9d2a8af6b00c2be6faa0f3d07cb (diff) |
uml: style fixes pass 3
Formatting changes in the files which have been changed in the course
of folding foo_skas functions into their callers. These include:
copyright updates
header file trimming
style fixes
adding severity to printks
These changes should be entirely non-functional.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/um/sys-i386/bugs.c')
-rw-r--r-- | arch/um/sys-i386/bugs.c | 106 |
1 files changed, 56 insertions, 50 deletions
diff --git a/arch/um/sys-i386/bugs.c b/arch/um/sys-i386/bugs.c index 25c1165d8093..806895d73bcc 100644 --- a/arch/um/sys-i386/bugs.c +++ b/arch/um/sys-i386/bugs.c @@ -1,18 +1,15 @@ /* - * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) + * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) * Licensed under the GPL */ -#include <unistd.h> #include <errno.h> +#include <signal.h> #include <string.h> -#include <sys/signal.h> -#include <asm/ldt.h> -#include "kern_util.h" -#include "user.h" -#include "sysdep/ptrace.h" -#include "task.h" +#include "kern_constants.h" #include "os.h" +#include "task.h" +#include "user.h" #define MAXTOKEN 64 @@ -30,18 +27,20 @@ static char token(int fd, char *buf, int len, char stop) do { n = os_read_file(fd, ptr, sizeof(*ptr)); c = *ptr++; - if(n != sizeof(*ptr)){ - if(n == 0) + if (n != sizeof(*ptr)) { + if (n == 0) return 0; - printk("Reading /proc/cpuinfo failed, err = %d\n", -n); - if(n < 0) + printk(UM_KERN_ERR "Reading /proc/cpuinfo failed, " + "err = %d\n", -n); + if (n < 0) return n; else return -EIO; } - } while((c != '\n') && (c != stop) && (ptr < end)); + } while ((c != '\n') && (c != stop) && (ptr < end)); - if(ptr == end){ - printk("Failed to find '%c' in /proc/cpuinfo\n", stop); + if (ptr == end) { + printk(UM_KERN_ERR "Failed to find '%c' in /proc/cpuinfo\n", + stop); return -1; } *(ptr - 1) = '\0'; @@ -54,26 +53,27 @@ static int find_cpuinfo_line(int fd, char *key, char *scratch, int len) char c; scratch[len - 1] = '\0'; - while(1){ + while (1) { c = token(fd, scratch, len - 1, ':'); - if(c <= 0) + if (c <= 0) return 0; - else if(c != ':'){ - printk("Failed to find ':' in /proc/cpuinfo\n"); + else if (c != ':') { + printk(UM_KERN_ERR "Failed to find ':' in " + "/proc/cpuinfo\n"); return 0; } - if(!strncmp(scratch, key, strlen(key))) + if (!strncmp(scratch, key, strlen(key))) return 1; do { n = os_read_file(fd, &c, sizeof(c)); - if(n != sizeof(c)){ - printk("Failed to find newline in " + if (n != sizeof(c)) { + printk(UM_KERN_ERR "Failed to find newline in " "/proc/cpuinfo, err = %d\n", -n); return 0; } - } while(c != '\n'); + } while (c != '\n'); } return 0; } @@ -83,46 +83,50 @@ static int check_cpu_flag(char *feature, int *have_it) char buf[MAXTOKEN], c; int fd, len = ARRAY_SIZE(buf); - printk("Checking for host processor %s support...", feature); + printk(UM_KERN_INFO "Checking for host processor %s support...", + feature); fd = os_open_file("/proc/cpuinfo", of_read(OPENFLAGS()), 0); - if(fd < 0){ - printk("Couldn't open /proc/cpuinfo, err = %d\n", -fd); + if (fd < 0) { + printk(UM_KERN_ERR "Couldn't open /proc/cpuinfo, err = %d\n", + -fd); return 0; } *have_it = 0; - if(!find_cpuinfo_line(fd, "flags", buf, ARRAY_SIZE(buf))) + if (!find_cpuinfo_line(fd, "flags", buf, ARRAY_SIZE(buf))) goto out; c = token(fd, buf, len - 1, ' '); - if(c < 0) + if (c < 0) goto out; - else if(c != ' '){ - printk("Failed to find ' ' in /proc/cpuinfo\n"); + else if (c != ' ') { + printk(UM_KERN_ERR "Failed to find ' ' in /proc/cpuinfo\n"); goto out; } - while(1){ + while (1) { c = token(fd, buf, len - 1, ' '); - if(c < 0) + if (c < 0) goto out; - else if(c == '\n') break; + else if (c == '\n') + break; - if(!strcmp(buf, feature)){ + if (!strcmp(buf, feature)) { *have_it = 1; goto out; } } out: - if(*have_it == 0) + if (*have_it == 0) printk("No\n"); - else if(*have_it == 1) + else if (*have_it == 1) printk("Yes\n"); os_close_file(fd); return 1; } -#if 0 /* This doesn't work in tt mode, plus it's causing compilation problems +#if 0 /* + * This doesn't work in tt mode, plus it's causing compilation problems * for some people. */ static void disable_lcall(void) @@ -135,8 +139,9 @@ static void disable_lcall(void) ldt.base_addr = 0; ldt.limit = 0; err = modify_ldt(1, &ldt, sizeof(ldt)); - if(err) - printk("Failed to disable lcall7 - errno = %d\n", errno); + if (err) + printk(UM_KERN_ERR "Failed to disable lcall7 - errno = %d\n", + errno); } #endif @@ -151,14 +156,14 @@ void arch_check_bugs(void) { int have_it; - if(os_access("/proc/cpuinfo", OS_ACC_R_OK) < 0){ - printk("/proc/cpuinfo not available - skipping CPU capability " - "checks\n"); + if (os_access("/proc/cpuinfo", OS_ACC_R_OK) < 0) { + printk(UM_KERN_ERR "/proc/cpuinfo not available - skipping CPU " + "capability checks\n"); return; } - if(check_cpu_flag("cmov", &have_it)) + if (check_cpu_flag("cmov", &have_it)) host_has_cmov = have_it; - if(check_cpu_flag("xmm", &have_it)) + if (check_cpu_flag("xmm", &have_it)) host_has_xmm = have_it; } @@ -166,25 +171,26 @@ int arch_handle_signal(int sig, struct uml_pt_regs *regs) { unsigned char tmp[2]; - /* This is testing for a cmov (0x0f 0x4x) instruction causing a + /* + * This is testing for a cmov (0x0f 0x4x) instruction causing a * SIGILL in init. */ - if((sig != SIGILL) || (TASK_PID(get_current()) != 1)) + if ((sig != SIGILL) || (TASK_PID(get_current()) != 1)) return 0; if (copy_from_user_proc(tmp, (void *) UPT_IP(regs), 2)) panic("SIGILL in init, could not read instructions!\n"); - if((tmp[0] != 0x0f) || ((tmp[1] & 0xf0) != 0x40)) + if ((tmp[0] != 0x0f) || ((tmp[1] & 0xf0) != 0x40)) return 0; - if(host_has_cmov == 0) + if (host_has_cmov == 0) panic("SIGILL caused by cmov, which this processor doesn't " "implement, boot a filesystem compiled for older " "processors"); - else if(host_has_cmov == 1) + else if (host_has_cmov == 1) panic("SIGILL caused by cmov, which this processor claims to " "implement"); - else if(host_has_cmov == -1) + else if (host_has_cmov == -1) panic("SIGILL caused by cmov, couldn't tell if this processor " "implements it, boot a filesystem compiled for older " "processors"); |