diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/um/drivers/chan_user.c | 18 | ||||
| -rw-r--r-- | arch/um/drivers/cow_user.c | 133 | ||||
| -rw-r--r-- | arch/um/drivers/fd.c | 13 | ||||
| -rw-r--r-- | arch/um/drivers/hostaudio_kern.c | 118 | ||||
| -rw-r--r-- | arch/um/drivers/mconsole_user.c | 119 | ||||
| -rw-r--r-- | arch/um/drivers/mmapper_kern.c | 64 | ||||
| -rw-r--r-- | arch/um/drivers/null.c | 4 | ||||
| -rw-r--r-- | arch/um/drivers/pty.c | 16 | ||||
| -rw-r--r-- | arch/um/drivers/xterm.c | 12 |
9 files changed, 244 insertions, 253 deletions
diff --git a/arch/um/drivers/chan_user.c b/arch/um/drivers/chan_user.c index 8443d37..b88e93b 100644 --- a/arch/um/drivers/chan_user.c +++ b/arch/um/drivers/chan_user.c @@ -1,4 +1,4 @@ -/* +/* * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{linux.intel,addtoit}.com) * Licensed under the GPL */ @@ -82,17 +82,21 @@ int generic_console_write(int fd, const char *buf, int n) if (err) goto error; new = save; - /* The terminal becomes a bit less raw, to handle \n also as + /* + * The terminal becomes a bit less raw, to handle \n also as * "Carriage Return", not only as "New Line". Otherwise, the new - * line won't start at the first column.*/ + * line won't start at the first column. + */ new.c_oflag |= OPOST; CATCH_EINTR(err = tcsetattr(fd, TCSAFLUSH, &new)); if (err) goto error; } err = generic_write(fd, buf, n, NULL); - /* Restore raw mode, in any case; we *must* ignore any error apart - * EINTR, except for debug.*/ + /* + * Restore raw mode, in any case; we *must* ignore any error apart + * EINTR, except for debug. + */ if (isatty(fd)) CATCH_EINTR(tcsetattr(fd, TCSAFLUSH, &save)); return err; @@ -167,13 +171,13 @@ static int winch_thread(void *arg) exit(1); } - if(ioctl(pty_fd, TIOCSCTTY, 0) < 0){ + if (ioctl(pty_fd, TIOCSCTTY, 0) < 0) { printk(UM_KERN_ERR "winch_thread : TIOCSCTTY failed on " "fd %d err = %d\n", pty_fd, errno); exit(1); } - if(tcsetpgrp(pty_fd, os_getpid()) < 0){ + if (tcsetpgrp(pty_fd, os_getpid()) < 0) { printk(UM_KERN_ERR "winch_thread : tcsetpgrp failed on " "fd %d err = %d\n", pty_fd, errno); exit(1); diff --git a/arch/um/drivers/cow_user.c b/arch/um/drivers/cow_user.c index 0ec4052..93f227a 100644 --- a/arch/um/drivers/cow_user.c +++ b/arch/um/drivers/cow_user.c @@ -1,17 +1,18 @@ -#include <stddef.h> -#include <string.h> -#include <errno.h> -/* _XOPEN_SOURCE is needed for pread, but we define _GNU_SOURCE, which defines +/* + * Copyright (C) 2007 Jeff Dike (jdike@{linux.intel,addtoit}.com) + * Licensed under the GPL + */ + +/* + * _XOPEN_SOURCE is needed for pread, but we define _GNU_SOURCE, which defines * that. */ #include <unistd.h> #include <byteswap.h> -#include <sys/time.h> -#include <sys/param.h> -#include <sys/user.h> - -#include "os.h" - +#include <errno.h> +#include <string.h> +#include <arpa/inet.h> +#include <asm/types.h> #include "cow.h" #include "cow_sys.h" @@ -28,7 +29,8 @@ struct cow_header_v1 { __s32 sectorsize; } __attribute__((packed)); -/* Define PATH_LEN_V3 as the usual value of MAXPATHLEN, just hard-code it in +/* + * Define PATH_LEN_V3 as the usual value of MAXPATHLEN, just hard-code it in * case other systems have different values for MAXPATHLEN. * * The same must hold for V2 - we want file format compatibility, not anything @@ -46,7 +48,8 @@ struct cow_header_v2 { __s32 sectorsize; } __attribute__((packed)); -/* Changes from V2 - +/* + * Changes from V2 - * PATH_LEN_V3 as described above * Explicitly specify field bit lengths for systems with different * lengths for the usual C types. Not sure whether char or @@ -70,7 +73,8 @@ struct cow_header_v2 { * Fixed (finally!) the rounding bug */ -/* Until Dec2005, __attribute__((packed)) was left out from the below +/* + * Until Dec2005, __attribute__((packed)) was left out from the below * definition, leading on 64-bit systems to 4 bytes of padding after mtime, to * align size to 8-byte alignment. This shifted all fields above (no padding * was present on 32-bit, no other padding was added). @@ -122,7 +126,7 @@ void cow_sizes(int version, __u64 size, int sectorsize, int align, int bitmap_offset, unsigned long *bitmap_len_out, int *data_offset_out) { - if(version < 3){ + if (version < 3) { *bitmap_len_out = (size + sectorsize - 1) / (8 * sectorsize); *data_offset_out = bitmap_offset + *bitmap_len_out; @@ -144,46 +148,46 @@ static int absolutize(char *to, int size, char *from) char save_cwd[256], *slash; int remaining; - if(getcwd(save_cwd, sizeof(save_cwd)) == NULL) { + if (getcwd(save_cwd, sizeof(save_cwd)) == NULL) { cow_printf("absolutize : unable to get cwd - errno = %d\n", errno); - return(-1); + return -1; } slash = strrchr(from, '/'); - if(slash != NULL){ + if (slash != NULL) { *slash = '\0'; - if(chdir(from)){ + if (chdir(from)) { *slash = '/'; cow_printf("absolutize : Can't cd to '%s' - " "errno = %d\n", from, errno); - return(-1); + return -1; } *slash = '/'; - if(getcwd(to, size) == NULL){ + if (getcwd(to, size) == NULL) { cow_printf("absolutize : unable to get cwd of '%s' - " "errno = %d\n", from, errno); - return(-1); + return -1; } remaining = size - strlen(to); - if(strlen(slash) + 1 > remaining){ + if (strlen(slash) + 1 > remaining) { cow_printf("absolutize : unable to fit '%s' into %d " "chars\n", from, size); - return(-1); + return -1; } strcat(to, slash); } else { - if(strlen(save_cwd) + 1 + strlen(from) + 1 > size){ + if (strlen(save_cwd) + 1 + strlen(from) + 1 > size) { cow_printf("absolutize : unable to fit '%s' into %d " "chars\n", from, size); - return(-1); + return -1; } strcpy(to, save_cwd); strcat(to, "/"); strcat(to, from); } chdir(save_cwd); - return(0); + return 0; } int write_cow_header(char *cow_file, int fd, char *backing_file, @@ -194,22 +198,23 @@ int write_cow_header(char *cow_file, int fd, char *backing_file, int err; err = cow_seek_file(fd, 0); - if(err < 0){ + if (err < 0) { cow_printf("write_cow_header - lseek failed, err = %d\n", -err); goto out; } err = -ENOMEM; header = cow_malloc(sizeof(*header)); - if(header == NULL){ - cow_printf("write_cow_header - failed to allocate COW V3 header\n"); + if (header == NULL) { + cow_printf("write_cow_header - failed to allocate COW V3 " + "header\n"); goto out; } header->magic = htonl(COW_MAGIC); header->version = htonl(COW_VERSION); err = -EINVAL; - if(strlen(backing_file) > sizeof(header->backing_file) - 1){ + if (strlen(backing_file) > sizeof(header->backing_file) - 1) { /* Below, %zd is for a size_t value */ cow_printf("Backing file name \"%s\" is too long - names are " "limited to %zd characters\n", backing_file, @@ -217,12 +222,12 @@ int write_cow_header(char *cow_file, int fd, char *backing_file, goto out_free; } - if(absolutize(header->backing_file, sizeof(header->backing_file), + if (absolutize(header->backing_file, sizeof(header->backing_file), backing_file)) goto out_free; err = os_file_modtime(header->backing_file, &modtime); - if(err < 0){ + if (err < 0) { cow_printf("write_cow_header - backing file '%s' mtime " "request failed, err = %d\n", header->backing_file, -err); @@ -230,7 +235,7 @@ int write_cow_header(char *cow_file, int fd, char *backing_file, } err = cow_file_size(header->backing_file, size); - if(err < 0){ + if (err < 0) { cow_printf("write_cow_header - couldn't get size of " "backing file '%s', err = %d\n", header->backing_file, -err); @@ -244,7 +249,7 @@ int write_cow_header(char *cow_file, int fd, char *backing_file, header->cow_format = COW_BITMAP; err = cow_write_file(fd, header, sizeof(*header)); - if(err != sizeof(*header)){ + if (err != sizeof(*header)) { cow_printf("write_cow_header - write of header to " "new COW file '%s' failed, err = %d\n", cow_file, -err); @@ -254,14 +259,14 @@ int write_cow_header(char *cow_file, int fd, char *backing_file, out_free: cow_free(header); out: - return(err); + return err; } int file_reader(__u64 offset, char *buf, int len, void *arg) { int fd = *((int *) arg); - return(pread(fd, buf, len, offset)); + return pread(fd, buf, len, offset); } /* XXX Need to sanity-check the values read from the header */ @@ -278,31 +283,29 @@ int read_cow_header(int (*reader)(__u64, char *, int, void *), void *arg, unsigned long version, magic; header = cow_malloc(sizeof(*header)); - if(header == NULL){ + if (header == NULL) { cow_printf("read_cow_header - Failed to allocate header\n"); - return(-ENOMEM); + return -ENOMEM; } err = -EINVAL; n = (*reader)(0, (char *) header, sizeof(*header), arg); - if(n < offsetof(typeof(header->v1), backing_file)){ + if (n < offsetof(typeof(header->v1), backing_file)) { cow_printf("read_cow_header - short header\n"); goto out; } magic = header->v1.magic; - if(magic == COW_MAGIC) { + if (magic == COW_MAGIC) version = header->v1.version; - } - else if(magic == ntohl(COW_MAGIC)){ + else if (magic == ntohl(COW_MAGIC)) version = ntohl(header->v1.version); - } /* No error printed because the non-COW case comes through here */ else goto out; *version_out = version; - if(version == 1){ - if(n < sizeof(header->v1)){ + if (version == 1) { + if (n < sizeof(header->v1)) { cow_printf("read_cow_header - failed to read V1 " "header\n"); goto out; @@ -314,8 +317,8 @@ int read_cow_header(int (*reader)(__u64, char *, int, void *), void *arg, *align_out = *sectorsize_out; file = header->v1.backing_file; } - else if(version == 2){ - if(n < sizeof(header->v2)){ + else if (version == 2) { + if (n < sizeof(header->v2)) { cow_printf("read_cow_header - failed to read V2 " "header\n"); goto out; @@ -328,8 +331,8 @@ int read_cow_header(int (*reader)(__u64, char *, int, void *), void *arg, file = header->v2.backing_file; } /* This is very subtle - see above at union cow_header definition */ - else if(version == 3 && (*((int*)header->v3.backing_file) != 0)){ - if(n < sizeof(header->v3)){ + else if (version == 3 && (*((int*)header->v3.backing_file) != 0)) { + if (n < sizeof(header->v3)) { cow_printf("read_cow_header - failed to read V3 " "header\n"); goto out; @@ -345,17 +348,18 @@ int read_cow_header(int (*reader)(__u64, char *, int, void *), void *arg, *bitmap_offset_out = ROUND_UP(sizeof(header->v3), *align_out); file = header->v3.backing_file; } - else if(version == 3){ + else if (version == 3) { cow_printf("read_cow_header - broken V3 file with" " 64-bit layout - recovering content.\n"); - if(n < sizeof(header->v3_b)){ + if (n < sizeof(header->v3_b)) { cow_printf("read_cow_header - failed to read V3 " "header\n"); goto out; } - /* this was used until Dec2005 - 64bits are needed to represent + /* + * this was used until Dec2005 - 64bits are needed to represent * 2038+. I.e. we can safely do this truncating cast. * * Additionally, we must use ntohl() instead of ntohll(), since @@ -381,7 +385,7 @@ int read_cow_header(int (*reader)(__u64, char *, int, void *), void *arg, } err = -ENOMEM; *backing_file_out = cow_strdup(file); - if(*backing_file_out == NULL){ + if (*backing_file_out == NULL) { cow_printf("read_cow_header - failed to allocate backing " "file\n"); goto out; @@ -389,7 +393,7 @@ int read_cow_header(int (*reader)(__u64, char *, int, void *), void *arg, err = 0; out: cow_free(header); - return(err); + return err; } int init_cow_file(int fd, char *cow_file, char *backing_file, int sectorsize, @@ -402,7 +406,7 @@ int init_cow_file(int fd, char *cow_file, char *backing_file, int sectorsize, err = write_cow_header(cow_file, fd, backing_file, sectorsize, alignment, &size); - if(err) + if (err) goto out; *bitmap_offset_out = ROUND_UP(sizeof(struct cow_header_v3), alignment); @@ -411,17 +415,18 @@ int init_cow_file(int fd, char *cow_file, char *backing_file, int sectorsize, offset = *data_offset_out + size - sizeof(zero); err = cow_seek_file(fd, offset); - if(err < 0){ + if (err < 0) { cow_printf("cow bitmap lseek failed : err = %d\n", -err); goto out; } - /* does not really matter how much we write it is just to set EOF + /* + * does not really matter how much we write it is just to set EOF * this also sets the entire COW bitmap * to zero without having to allocate it */ err = cow_write_file(fd, &zero, sizeof(zero)); - if(err != sizeof(zero)){ + if (err != sizeof(zero)) { cow_printf("Write of bitmap to new COW file '%s' failed, " "err = %d\n", cow_file, -err); if (err >= 0) @@ -429,15 +434,7 @@ int init_cow_file(int fd, char *cow_file, char *backing_file, int sectorsize, goto out; } - return(0); - + return 0; out: - return(err); + return err; } - -/* - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/drivers/fd.c b/arch/um/drivers/fd.c index 207b044..0a2bb5b 100644 --- a/arch/um/drivers/fd.c +++ b/arch/um/drivers/fd.c @@ -1,19 +1,18 @@ -/* +/* * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{linux.intel,addtoit}.com) * Licensed under the GPL */ -#include <stddef.h> -#include <stdlib.h> #include <stdio.h> +#include <stdlib.h> +#include <unistd.h> #include <errno.h> #include <termios.h> -#include <unistd.h> #include "chan_user.h" +#include "kern_constants.h" +#include "os.h" #include "um_malloc.h" #include "user.h" -#include "os.h" -#include "kern_constants.h" struct fd_chan { int fd; @@ -42,7 +41,7 @@ static void *fd_init(char *str, int device, const struct chan_opts *opts) } data = kmalloc(sizeof(*data), UM_GFP_KERNEL); - if(data == NULL) + if (data == NULL) return NULL; *data = ((struct fd_chan) { .fd = n, diff --git a/arch/um/drivers/hostaudio_kern.c b/arch/um/drivers/hostaudio_kern.c index 10e08a8..ff1b22b 100644 --- a/arch/um/drivers/hostaudio_kern.c +++ b/arch/um/drivers/hostaudio_kern.c @@ -1,16 +1,14 @@ -/* - * Copyright (C) 2002 Steve Schmidtke +/* + * Copyright (C) 2002 Steve Schmidtke * Licensed under the GPL */ +#include "linux/fs.h" #include "linux/module.h" -#include "linux/init.h" #include "linux/slab.h" -#include "linux/fs.h" #include "linux/sound.h" #include "linux/soundcard.h" #include "asm/uaccess.h" -#include "kern_util.h" #include "init.h" #include "os.h" @@ -25,7 +23,8 @@ struct hostmixer_state { #define HOSTAUDIO_DEV_DSP "/dev/sound/dsp" #define HOSTAUDIO_DEV_MIXER "/dev/sound/mixer" -/* Changed either at boot time or module load time. At boot, this is +/* + * Changed either at boot time or module load time. At boot, this is * single-threaded; at module load, multiple modules would each have * their own copy of these variables. */ @@ -44,7 +43,7 @@ static char *mixer = HOSTAUDIO_DEV_MIXER; static int set_dsp(char *name, int *add) { dsp = name; - return(0); + return 0; } __uml_setup("dsp=", set_dsp, "dsp=<dsp device>\n" DSP_HELP); @@ -52,7 +51,7 @@ __uml_setup("dsp=", set_dsp, "dsp=<dsp device>\n" DSP_HELP); static int set_mixer(char *name, int *add) { mixer = name; - return(0); + return 0; } __uml_setup("mixer=", set_mixer, "mixer=<mixer device>\n" MIXER_HELP); @@ -77,23 +76,23 @@ static ssize_t hostaudio_read(struct file *file, char __user *buffer, int err; #ifdef DEBUG - printk("hostaudio: read called, count = %d\n", count); + printk(KERN_DEBUG "hostaudio: read called, count = %d\n", count); #endif kbuf = kmalloc(count, GFP_KERNEL); - if(kbuf == NULL) - return(-ENOMEM); + if (kbuf == NULL) + return -ENOMEM; err = os_read_file(state->fd, kbuf, count); - if(err < 0) + if (err < 0) goto out; - if(copy_to_user(buffer, kbuf, err)) + if (copy_to_user(buffer, kbuf, err)) err = -EFAULT; out: kfree(kbuf); - return(err); + return err; } static ssize_t hostaudio_write(struct file *file, const char __user *buffer, @@ -104,40 +103,40 @@ static ssize_t hostaudio_write(struct file *file, const char __user *buffer, int err; #ifdef DEBUG - printk("hostaudio: write called, count = %d\n", count); + printk(KERN_DEBUG "hostaudio: write called, count = %d\n", count); #endif kbuf = kmalloc(count, GFP_KERNEL); - if(kbuf == NULL) - return(-ENOMEM); + if (kbuf == NULL) + return -ENOMEM; err = -EFAULT; - if(copy_from_user(kbuf, buffer, count)) + if (copy_from_user(kbuf, buffer, count)) goto out; err = os_write_file(state->fd, kbuf, count); - if(err < 0) + if (err < 0) goto out; *ppos += err; out: kfree(kbuf); - return(err); + return err; } -static unsigned int hostaudio_poll(struct file *file, +static unsigned int hostaudio_poll(struct file *file, struct poll_table_struct *wait) { unsigned int mask = 0; #ifdef DEBUG - printk("hostaudio: poll called (unimplemented)\n"); + printk(KERN_DEBUG "hostaudio: poll called (unimplemented)\n"); #endif - return(mask); + return mask; } -static int hostaudio_ioctl(struct inode *inode, struct file *file, +static int hostaudio_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) { struct hostaudio_state *state = file->private_data; @@ -145,7 +144,7 @@ static int hostaudio_ioctl(struct inode *inode, struct file *file, int err; #ifdef DEBUG - printk("hostaudio: ioctl called, cmd = %u\n", cmd); + printk(KERN_DEBUG "hostaudio: ioctl called, cmd = %u\n", cmd); #endif switch(cmd){ case SNDCTL_DSP_SPEED: @@ -154,8 +153,8 @@ static int hostaudio_ioctl(struct inode *inode, struct file *file, case SNDCTL_DSP_CHANNELS: case SNDCTL_DSP_SUBDIVIDE: case SNDCTL_DSP_SETFRAGMENT: - if(get_user(data, (int __user *) arg)) - return(-EFAULT); + if (get_user(data, (int __user *) arg)) + return EFAULT; break; default: break; @@ -170,14 +169,14 @@ static int hostaudio_ioctl(struct inode *inode, struct file *file, case SNDCTL_DSP_CHANNELS: case SNDCTL_DSP_SUBDIVIDE: case SNDCTL_DSP_SETFRAGMENT: - if(put_user(data, (int __user *) arg)) - return(-EFAULT); + if (put_user(data, (int __user *) arg)) + return -EFAULT; break; default: break; } - return(err); + return err; } static int hostaudio_open(struct inode *inode, struct file *file) @@ -187,24 +186,26 @@ static int hostaudio_open(struct inode *inode, struct file *file) int ret; #ifdef DEBUG - printk("hostaudio: open called (host: %s)\n", dsp); + printk(KERN_DEBUG "hostaudio: open called (host: %s)\n", dsp); #endif state = kmalloc(sizeof(struct hostaudio_state), GFP_KERNEL); - if(state == NULL) - return(-ENOMEM); + if (state == NULL) + return -ENOMEM; - if(file->f_mode & FMODE_READ) r = 1; - if(file->f_mode & FMODE_WRITE) w = 1; + if (file->f_mode & FMODE_READ) + r = 1; + if (file->f_mode & FMODE_WRITE) + w = 1; ret = os_open_file(dsp, of_set_rw(OPENFLAGS(), r, w), 0); - if(ret < 0){ + if (ret < 0) { kfree(state); - return(ret); + return ret; } state->fd = ret; file->private_data = state; - return(0); + return 0; } static int hostaudio_release(struct inode *inode, struct file *file) @@ -212,26 +213,26 @@ static int hostaudio_release(struct inode *inode, struct file *file) struct hostaudio_state *state = file->private_data; #ifdef DEBUG - printk("hostaudio: release called\n"); + printk(KERN_DEBUG "hostaudio: release called\n"); #endif os_close_file(state->fd); kfree(state); - return(0); + return 0; } /* /dev/mixer file operations */ -static int hostmixer_ioctl_mixdev(struct inode *inode, struct file *file, +static int hostmixer_ioctl_mixdev(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) { struct hostmixer_state *state = file->private_data; #ifdef DEBUG - printk("hostmixer: ioctl called\n"); + printk(KERN_DEBUG "hostmixer: ioctl called\n"); #endif - return(os_ioctl_generic(state->fd, cmd, arg)); + return os_ioctl_generic(state->fd, cmd, arg); } static int hostmixer_open_mixdev(struct inode *inode, struct file *file) @@ -241,26 +242,29 @@ static int hostmixer_open_mixdev(struct inode *inode, struct file *file) int ret; #ifdef DEBUG - printk("hostmixer: open called (host: %s)\n", mixer); + printk(KERN_DEBUG "hostmixer: open called (host: %s)\n", mixer); #endif state = kmalloc(sizeof(struct hostmixer_state), GFP_KERNEL); - if(state == NULL) return(-ENOMEM); + if (state == NULL) + return -ENOMEM; - if(file->f_mode & FMODE_READ) r = 1; - if(file->f_mode & FMODE_WRITE) w = 1; + if (file->f_mode & FMODE_READ) + r = 1; + if (file->f_mode & FMODE_WRITE) + w = 1; ret = os_open_file(mixer, of_set_rw(OPENFLAGS(), r, w), 0); - - if(ret < 0){ - printk("hostaudio_open_mixdev failed to open '%s', err = %d\n", - dsp, -ret); + + if (ret < 0) { + printk(KERN_ERR "hostaudio_open_mixdev failed to open '%s', " + "err = %d\n", dsp, -ret); kfree(state); - return(ret); + return ret; } file->private_data = state; - return(0); + return 0; } static int hostmixer_release(struct inode *inode, struct file *file) @@ -268,13 +272,13 @@ static int hostmixer_release(struct inode *inode, struct file *file) struct hostmixer_state *state = file->private_data; #ifdef DEBUG - printk("hostmixer: release called\n"); + printk(KERN_DEBUG "hostmixer: release called\n"); #endif os_close_file(state->fd); kfree(state); - return(0); + return 0; } /* kernel module operations */ @@ -314,13 +318,13 @@ static int __init hostaudio_init_module(void) dsp, mixer); module_data.dev_audio = register_sound_dsp(&hostaudio_fops, -1); - if(module_data.dev_audio < 0){ + if (module_data.dev_audio < 0) { printk(KERN_ERR "hostaudio: couldn't register DSP device!\n"); return -ENODEV; } module_data.dev_mixer = register_sound_mixer(&hostmixer_fops, -1); - if(module_data.dev_mixer < 0){ + if (module_data.dev_mixer < 0) { printk(KERN_ERR "hostmixer: couldn't register mixer " "device!\n"); unregister_sound_dsp(module_data.dev_audio); diff --git a/arch/um/drivers/mconsole_user.c b/arch/um/drivers/mconsole_user.c index f31e715..430c024 100644 --- a/arch/um/drivers/mconsole_user.c +++ b/arch/um/drivers/mconsole_user.c @@ -1,25 +1,22 @@ /* * Copyright (C) 2001 Lennert Buytenhek (buytenh@gnu.org) - * Copyright (C) 2001 - 2003 Jeff Dike (jdike@addtoit.com) + * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) * Licensed under the GPL */ -#include <stdio.h> -#include <stdlib.h> #include <errno.h> -#include <signal.h> +#include <string.h> +#include <unistd.h> #include <sys/socket.h> -#include <sys/types.h> #include <sys/uio.h> #include <sys/un.h> -#include <unistd.h> -#include "user.h" -#include "sysdep/ptrace.h" +#include "kern_constants.h" #include "mconsole.h" -#include "os.h" +#include "user.h" static struct mconsole_command commands[] = { - /* With uts namespaces, uts information becomes process-specific, so + /* + * With uts namespaces, uts information becomes process-specific, so * we need a process context. If we try handling this in interrupt * context, we may hit an exiting process without a valid uts * namespace. @@ -36,7 +33,7 @@ static struct mconsole_command commands[] = { { "go", mconsole_go, MCONSOLE_INTR }, { "log", mconsole_log, MCONSOLE_INTR }, { "proc", mconsole_proc, MCONSOLE_PROC }, - { "stack", mconsole_stack, MCONSOLE_INTR }, + { "stack", mconsole_stack, MCONSOLE_INTR }, }; /* Initialized in mconsole_init, which is an initcall */ @@ -44,21 +41,21 @@ char mconsole_socket_name[256]; int mconsole_reply_v0(struct mc_request *req, char *reply) { - struct iovec iov; - struct msghdr msg; + struct iovec iov; + struct msghdr msg; - iov.iov_base = reply; - iov.iov_len = strlen(reply); + iov.iov_base = reply; + iov.iov_len = strlen(reply); - msg.msg_name = &(req->origin); - msg.msg_namelen = req->originlen; - msg.msg_iov = &iov; - msg.msg_iovlen = 1; - msg.msg_control = NULL; - msg.msg_controllen = 0; - msg.msg_flags = 0; + msg.msg_name = &(req->origin); + msg.msg_namelen = req->originlen; + msg.msg_iov = &iov; + msg.msg_iovlen = 1; + msg.msg_control = NULL; + msg.msg_controllen = 0; + msg.msg_flags = 0; - return sendmsg(req->originating_fd, &msg, 0); + return sendmsg(req->originating_fd, &msg, 0); } static struct mconsole_command *mconsole_parse(struct mc_request *req) @@ -66,10 +63,10 @@ static struct mconsole_command *mconsole_parse(struct mc_request *req) struct mconsole_command *cmd; int i; - for(i = 0; i < ARRAY_SIZE(commands); i++){ + for (i = 0; i < ARRAY_SIZE(commands); i++) { cmd = &commands[i]; - if(!strncmp(req->request.data, cmd->command, - strlen(cmd->command))){ + if (!strncmp(req->request.data, cmd->command, + strlen(cmd->command))) { return cmd; } } @@ -94,9 +91,9 @@ int mconsole_get_request(int fd, struct mc_request *req) req->originating_fd = fd; - if(req->request.magic != MCONSOLE_MAGIC){ + if (req->request.magic != MCONSOLE_MAGIC) { /* Unversioned request */ - len = MIN(sizeof(req->request.data) - 1, + len = MIN(sizeof(req->request.data) - 1, strlen((char *) &req->request)); memmove(req->request.data, &req->request, len); req->request.data[len] = '\0'; @@ -107,32 +104,33 @@ int mconsole_get_request(int fd, struct mc_request *req) mconsole_reply_v0(req, "ERR Version 0 mconsole clients are " "not supported by this driver"); - return(0); + return 0; } - if(req->request.len >= MCONSOLE_MAX_DATA){ + if (req->request.len >= MCONSOLE_MAX_DATA) { mconsole_reply(req, "Request too large", 1, 0); - return(0); + return 0; } - if(req->request.version != MCONSOLE_VERSION){ - mconsole_reply(req, "This driver only supports version " - STRING(MCONSOLE_VERSION) " clients", 1, 0); + if (req->request.version != MCONSOLE_VERSION) { + mconsole_reply(req, "This driver only supports version " + STRING(MCONSOLE_VERSION) " clients", 1, 0); } - + req->request.data[req->request.len] = '\0'; req->cmd = mconsole_parse(req); - if(req->cmd == NULL){ + if (req->cmd == NULL) { mconsole_reply(req, "Unknown command", 1, 0); - return(0); + return 0; } - return(1); + return 1; } int mconsole_reply_len(struct mc_request *req, const char *str, int total, int err, int more) { - /* XXX This is a stack consumption problem. It'd be nice to + /* + * XXX This is a stack consumption problem. It'd be nice to * make it global and serialize access to it, but there are a * ton of callers to this function. */ @@ -147,7 +145,7 @@ int mconsole_reply_len(struct mc_request *req, const char *str, int total, len = MIN(total, MCONSOLE_MAX_DATA - 1); - if(len == total) reply.more = more; + if (len == total) reply.more = more; else reply.more = 1; memcpy(reply.data, str, len); @@ -161,9 +159,10 @@ int mconsole_reply_len(struct mc_request *req, const char *str, int total, n = sendto(req->originating_fd, &reply, len, 0, (struct sockaddr *) req->origin, req->originlen); - if(n < 0) return(-errno); - } while(total > 0); - return(0); + if (n < 0) + return -errno; + } while (total > 0); + return 0; } int mconsole_reply(struct mc_request *req, const char *str, int err, int more) @@ -187,18 +186,18 @@ int mconsole_notify(char *sock_name, int type, const void *data, int len) int n, err = 0; lock_notify(); - if(notify_sock < 0){ + if (notify_sock < 0) { notify_sock = socket(PF_UNIX, SOCK_DGRAM, 0); - if(notify_sock < 0){ + if (notify_sock < 0) { err = -errno; - printk("mconsole_notify - socket failed, errno = %d\n", - err); + printk(UM_KERN_ERR "mconsole_notify - socket failed, " + "errno = %d\n", errno); } } unlock_notify(); - - if(err) - return(err); + + if (err) + return err; target.sun_family = AF_UNIX; strcpy(target.sun_path, sock_name); @@ -212,22 +211,12 @@ int mconsole_notify(char *sock_name, int type, const void *data, int len) err = 0; len = sizeof(packet) + packet.len - sizeof(packet.data); - n = sendto(notify_sock, &packet, len, 0, (struct sockaddr *) &target, + n = sendto(notify_sock, &packet, len, 0, (struct sockaddr *) &target, sizeof(target)); - if(n < 0){ + if (n < 0) { err = -errno; - printk("mconsole_notify - sendto failed, errno = %d\n", errno); + printk(UM_KERN_ERR "mconsole_notify - sendto failed, " + "errno = %d\n", errno); } - return(err); + return err; } - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * Emacs will notice this stuff at the end of the file and automatically - * adjust the settings for this buffer only. This must remain at the end - * of the file. - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/drivers/mmapper_kern.c b/arch/um/drivers/mmapper_kern.c index 867666a..67b2f55 100644 --- a/arch/um/drivers/mmapper_kern.c +++ b/arch/um/drivers/mmapper_kern.c @@ -9,27 +9,29 @@ * */ -#include <linux/init.h> -#include <linux/module.h> -#include <linux/mm.h> +#include <linux/stddef.h> +#include <linux/types.h> #include <linux/fs.h> +#include <linux/init.h> #include <linux/miscdevice.h> +#include <linux/module.h> +#include <linux/mm.h> #include <asm/uaccess.h> #include "mem_user.h" - + /* These are set in mmapper_init, which is called at boot time */ static unsigned long mmapper_size; -static unsigned long p_buf = 0; -static char *v_buf = NULL; +static unsigned long p_buf; +static char *v_buf; -static ssize_t -mmapper_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) +static ssize_t mmapper_read(struct file *file, char __user *buf, size_t count, + loff_t *ppos) { return simple_read_from_buffer(buf, count, ppos, v_buf, mmapper_size); } -static ssize_t -mmapper_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) +static ssize_t mmapper_write(struct file *file, const char __user *buf, + size_t count, loff_t *ppos) { if (*ppos > mmapper_size) return -EINVAL; @@ -39,48 +41,46 @@ mmapper_write(struct file *file, const char __user *buf, size_t count, loff_t *p if (copy_from_user(&v_buf[*ppos], buf, count)) return -EFAULT; - + return count; } -static int -mmapper_ioctl(struct inode *inode, struct file *file, unsigned int cmd, - unsigned long arg) +static int mmapper_ioctl(struct inode *inode, struct file *file, + unsigned int cmd, unsigned long arg) { - return(-ENOIOCTLCMD); + return -ENOIOCTLCMD; } -static int -mmapper_mmap(struct file *file, struct vm_area_struct * vma) +static int mmapper_mmap(struct file *file, struct vm_area_struct *vma) { int ret = -EINVAL; int size; if (vma->vm_pgoff != 0) goto out; - + size = vma->vm_end - vma->vm_start; - if(size > mmapper_size) return(-EFAULT); + if (size > mmapper_size) + return -EFAULT; - /* XXX A comment above remap_pfn_range says it should only be + /* + * XXX A comment above remap_pfn_range says it should only be * called when the mm semaphore is held */ if (remap_pfn_range(vma, vma->vm_start, p_buf >> PAGE_SHIFT, size, - vma->vm_page_prot)) + vma->vm_page_prot)) goto out; ret = 0; out: return ret; } -static int -mmapper_open(struct inode *inode, struct file *file) +static int mmapper_open(struct inode *inode, struct file *file) { return 0; } -static int -mmapper_release(struct inode *inode, struct file *file) +static int mmapper_release(struct inode *inode, struct file *file) { return 0; } @@ -95,7 +95,9 @@ static const struct file_operations mmapper_fops = { .release = mmapper_release, }; -/* No locking needed - only used (and modified) by below initcall and exitcall. */ +/* + * No locking needed - only used (and modified) by below initcall and exitcall. + */ static struct miscdevice mmapper_dev = { .minor = MISC_DYNAMIC_MINOR, .name = "mmapper", @@ -109,13 +111,13 @@ static int __init mmapper_init(void) printk(KERN_INFO "Mapper v0.1\n"); v_buf = (char *) find_iomem("mmapper", &mmapper_size); - if(mmapper_size == 0){ + if (mmapper_size == 0) { printk(KERN_ERR "mmapper_init - find_iomem failed\n"); goto out; } err = misc_register(&mmapper_dev); - if(err){ + if (err) { printk(KERN_ERR "mmapper - misc_register failed, err = %d\n", err); goto out; @@ -136,9 +138,3 @@ module_exit(mmapper_exit); MODULE_AUTHOR("Greg Lonnon <glonnon@ridgerun.com>"); MODULE_DESCRIPTION("DSPLinux simulator mmapper driver"); -/* - * --------------------------------------------------------------------------- - * Local variables: - * c-file-style: "linux" - * End: - */ diff --git a/arch/um/drivers/null.c b/arch/um/drivers/null.c index b808641..21ad3d7 100644 --- a/arch/um/drivers/null.c +++ b/arch/um/drivers/null.c @@ -1,4 +1,4 @@ -/* +/* * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{linux.intel,addtoit}.com) * Licensed under the GPL */ @@ -6,8 +6,8 @@ #include <stddef.h> #include <errno.h> #include <fcntl.h> -#include "os.h" #include "chan_user.h" +#include "os.h" /* This address is used only as a unique identifer */ static int null_chan; diff --git a/arch/um/drivers/pty.c b/arch/um/drivers/pty.c index 4123fe1..49c79dd 100644 --- a/arch/um/drivers/pty.c +++ b/arch/um/drivers/pty.c @@ -1,4 +1,4 @@ -/* +/* * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) * Licensed under the GPL */ @@ -6,16 +6,16 @@ #include <stdio.h> #include <stdlib.h> #include <unistd.h> -#include <string.h> -#include <fcntl.h> #include <errno.h> +#include <fcntl.h> +#include <string.h> #include <termios.h> #include <sys/stat.h> #include "chan_user.h" -#include "os.h" -#include "user.h" #include "kern_constants.h" +#include "os.h" #include "um_malloc.h" +#include "user.h" struct pty_chan { void (*announce)(char *dev_name, int dev); @@ -33,7 +33,7 @@ static void *pty_chan_init(char *str, int device, const struct chan_opts *opts) if (data == NULL) return NULL; - *data = ((struct pty_chan) { .announce = opts->announce, + *data = ((struct pty_chan) { .announce = opts->announce, .dev = device, .raw = opts->raw }); return data; @@ -101,7 +101,7 @@ static int getmaster(char *line) *tp = 't'; err = access(line, R_OK | W_OK); *tp = 'p'; - if(!err) + if (!err) return master; close(master); } @@ -130,7 +130,7 @@ static int pty_open(int input, int output, int primary, void *d, return err; } } - + if (data->announce) (*data->announce)(dev, data->dev); diff --git a/arch/um/drivers/xterm.c b/arch/um/drivers/xterm.c index 87e18bf..8a1c18a 100644 --- a/arch/um/drivers/xterm.c +++ b/arch/um/drivers/xterm.c @@ -1,11 +1,11 @@ -/* +/* * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) * Licensed under the GPL */ #include <stddef.h> -#include <stdlib.h> #include <stdio.h> +#include <stdlib.h> #include <unistd.h> #include <errno.h> #include <string.h> @@ -96,8 +96,10 @@ static int xterm_open(int input, int output, int primary, void *d, if (access(argv[4], X_OK) < 0) argv[4] = "port-helper"; - /* Check that DISPLAY is set, this doesn't guarantee the xterm - * will work but w/o it we can be pretty sure it won't. */ + /* + * Check that DISPLAY is set, this doesn't guarantee the xterm + * will work but w/o it we can be pretty sure it won't. + */ if (getenv("DISPLAY") == NULL) { printk(UM_KERN_ERR "xterm_open: $DISPLAY not set.\n"); return -ENODEV; @@ -196,7 +198,7 @@ static int xterm_open(int input, int output, int primary, void *d, static void xterm_close(int fd, void *d) { struct xterm_chan *data = d; - + if (data->pid != -1) os_kill_process(data->pid, 1); data->pid = -1; |
