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Date: Fri, 20 Sep 2013 19:22:52 -0300
From: "Geyslan G. Bem" <geyslan@...il.com>
To: viro@...iv.linux.org.uk
Cc: linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
"Geyslan G. Bem" <geyslan@...il.com>
Subject: [PATCH] fs: exec.c: Coding style sanitization
Adjustment based on the checkpatch.pl.
Tested.
Signed-off-by: Geyslan G. Bem <geyslan@...il.com>
---
fs/exec.c | 92 ++++++++++++++++++++++++++++++++++-----------------------------
1 file changed, 49 insertions(+), 43 deletions(-)
diff --git a/fs/exec.c b/fs/exec.c
index 8875dd1..b5c6086 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -19,7 +19,7 @@
* current->executable is only used by the procfs. This allows a dispatch
* table to check for several different types of binary formats. We keep
* trying until we recognize the file or we run out of supported binary
- * formats.
+ * formats.
*/
#include <linux/slab.h>
@@ -55,8 +55,8 @@
#include <linux/pipe_fs_i.h>
#include <linux/oom.h>
#include <linux/compat.h>
+#include <linux/uaccess.h>
-#include <asm/uaccess.h>
#include <asm/mmu_context.h>
#include <asm/tlb.h>
@@ -71,7 +71,7 @@ int suid_dumpable = 0;
static LIST_HEAD(formats);
static DEFINE_RWLOCK(binfmt_lock);
-void __register_binfmt(struct linux_binfmt * fmt, int insert)
+void __register_binfmt(struct linux_binfmt *fmt, int insert)
{
BUG_ON(!fmt);
if (WARN_ON(!fmt->load_binary))
@@ -81,19 +81,17 @@ void __register_binfmt(struct linux_binfmt * fmt, int insert)
list_add_tail(&fmt->lh, &formats);
write_unlock(&binfmt_lock);
}
-
EXPORT_SYMBOL(__register_binfmt);
-void unregister_binfmt(struct linux_binfmt * fmt)
+void unregister_binfmt(struct linux_binfmt *fmt)
{
write_lock(&binfmt_lock);
list_del(&fmt->lh);
write_unlock(&binfmt_lock);
}
-
EXPORT_SYMBOL(unregister_binfmt);
-static inline void put_binfmt(struct linux_binfmt * fmt)
+static inline void put_binfmt(struct linux_binfmt *fmt)
{
module_put(fmt->module);
}
@@ -136,8 +134,8 @@ SYSCALL_DEFINE1(uselib, const char __user *, library)
fsnotify_open(file);
error = -ENOEXEC;
- if(file->f_op) {
- struct linux_binfmt * fmt;
+ if (file->f_op) {
+ struct linux_binfmt *fmt;
read_lock(&binfmt_lock);
list_for_each_entry(fmt, &formats, lh) {
@@ -154,10 +152,11 @@ SYSCALL_DEFINE1(uselib, const char __user *, library)
}
read_unlock(&binfmt_lock);
}
+
exit:
fput(file);
out:
- return error;
+ return error;
}
#ifdef CONFIG_MMU
@@ -180,7 +179,7 @@ static void acct_arg_size(struct linux_binprm *bprm, unsigned long pages)
}
static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,
- int write)
+ int write)
{
struct page *page;
int ret;
@@ -241,7 +240,7 @@ static void free_arg_pages(struct linux_binprm *bprm)
}
static void flush_arg_page(struct linux_binprm *bprm, unsigned long pos,
- struct page *page)
+ struct page *page)
{
flush_cache_page(bprm->vma, pos, page_to_pfn(page));
}
@@ -268,7 +267,9 @@ static int __bprm_mm_init(struct linux_binprm *bprm)
BUILD_BUG_ON(VM_STACK_FLAGS & VM_STACK_INCOMPLETE_SETUP);
vma->vm_end = STACK_TOP_MAX;
vma->vm_start = vma->vm_end - PAGE_SIZE;
- vma->vm_flags = VM_SOFTDIRTY | VM_STACK_FLAGS | VM_STACK_INCOMPLETE_SETUP;
+ vma->vm_flags = (VM_SOFTDIRTY |
+ VM_STACK_FLAGS |
+ VM_STACK_INCOMPLETE_SETUP);
vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
INIT_LIST_HEAD(&vma->anon_vma_chain);
@@ -299,7 +300,7 @@ static inline void acct_arg_size(struct linux_binprm *bprm, unsigned long pages)
}
static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos,
- int write)
+ int write)
{
struct page *page;
@@ -335,7 +336,7 @@ static void free_arg_pages(struct linux_binprm *bprm)
}
static void flush_arg_page(struct linux_binprm *bprm, unsigned long pos,
- struct page *page)
+ struct page *page)
{
}
@@ -616,7 +617,9 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift)
* when the old and new regions overlap clear from new_end.
*/
free_pgd_range(&tlb, new_end, old_end, new_end,
- vma->vm_next ? vma->vm_next->vm_start : USER_PGTABLES_CEILING);
+ vma->vm_next
+ ? vma->vm_next->vm_start
+ : USER_PGTABLES_CEILING);
} else {
/*
* otherwise, clean from old_start; this is done to not touch
@@ -625,7 +628,9 @@ static int shift_arg_pages(struct vm_area_struct *vma, unsigned long shift)
* for the others its just a little faster.
*/
free_pgd_range(&tlb, old_start, old_end, new_end,
- vma->vm_next ? vma->vm_next->vm_start : USER_PGTABLES_CEILING);
+ vma->vm_next
+ ? vma->vm_next->vm_start
+ : USER_PGTABLES_CEILING);
}
tlb_finish_mmu(&tlb, old_start, old_end);
@@ -803,7 +808,6 @@ int kernel_read(struct file *file, loff_t offset,
set_fs(old_fs);
return result;
}
-
EXPORT_SYMBOL(kernel_read);
ssize_t read_code(struct file *file, unsigned long addr, loff_t pos, size_t len)
@@ -818,7 +822,7 @@ EXPORT_SYMBOL(read_code);
static int exec_mmap(struct mm_struct *mm)
{
struct task_struct *tsk;
- struct mm_struct * old_mm, *active_mm;
+ struct mm_struct *old_mm, *active_mm;
/* Notify parent that we're no longer interested in the old VM */
tsk = current;
@@ -1064,7 +1068,7 @@ static void filename_to_taskname(char *tcomm, const char *fn, unsigned int len)
tcomm[i] = '\0';
}
-int flush_old_exec(struct linux_binprm * bprm)
+int flush_old_exec(struct linux_binprm *bprm)
{
int retval;
@@ -1109,14 +1113,15 @@ void would_dump(struct linux_binprm *bprm, struct file *file)
}
EXPORT_SYMBOL(would_dump);
-void setup_new_exec(struct linux_binprm * bprm)
+void setup_new_exec(struct linux_binprm *bprm)
{
arch_pick_mmap_layout(current->mm);
/* This is the point of no return */
current->sas_ss_sp = current->sas_ss_size = 0;
- if (uid_eq(current_euid(), current_uid()) && gid_eq(current_egid(), current_gid()))
+ if (uid_eq(current_euid(), current_uid()) &&
+ gid_eq(current_egid(), current_gid()))
set_dumpable(current->mm, SUID_DUMP_USER);
else
set_dumpable(current->mm, suid_dumpable);
@@ -1143,7 +1148,7 @@ void setup_new_exec(struct linux_binprm * bprm)
group */
current->self_exec_id++;
-
+
flush_signal_handlers(current, 0);
do_close_on_exec(current->files);
}
@@ -1269,8 +1274,8 @@ static int check_unsafe_exec(struct linux_binprm *bprm)
return res;
}
-/*
- * Fill the binprm structure from the inode.
+/*
+ * Fill the binprm structure from the inode.
* Check permissions, then read the first 128 (BINPRM_BUF_SIZE) bytes
*
* This may be called multiple times for binary chains (scripts for example).
@@ -1278,7 +1283,7 @@ static int check_unsafe_exec(struct linux_binprm *bprm)
int prepare_binprm(struct linux_binprm *bprm)
{
umode_t mode;
- struct inode * inode = file_inode(bprm->file);
+ struct inode *inode = file_inode(bprm->file);
int retval;
mode = inode->i_mode;
@@ -1320,7 +1325,6 @@ int prepare_binprm(struct linux_binprm *bprm)
memset(bprm->buf, 0, BINPRM_BUF_SIZE);
return kernel_read(bprm->file, 0, bprm->buf, BINPRM_BUF_SIZE);
}
-
EXPORT_SYMBOL(prepare_binprm);
/*
@@ -1367,7 +1371,9 @@ out:
}
EXPORT_SYMBOL(remove_arg_zero);
-#define printable(c) (((c)=='\t') || ((c)=='\n') || (0x20<=(c) && (c)<=0x7e))
+#define printable(c) (((c) == '\t') || \
+ ((c) == '\n') || \
+ (0x20 <= (c) && (c) <= 0x7e))
/*
* cycle the list of binary formats handler, until one recognizes the image
*/
@@ -1413,7 +1419,8 @@ int search_binary_handler(struct linux_binprm *bprm)
if (printable(bprm->buf[0]) && printable(bprm->buf[1]) &&
printable(bprm->buf[2]) && printable(bprm->buf[3]))
return retval;
- if (request_module("binfmt-%04x", *(ushort *)(bprm->buf + 2)) < 0)
+ if (request_module("binfmt-%04x",
+ *(ushort *)(bprm->buf + 2)) < 0)
return retval;
need_retry = false;
goto retry;
@@ -1455,8 +1462,8 @@ static int exec_binprm(struct linux_binprm *bprm)
* sys_execve() executes a new program.
*/
static int do_execve_common(const char *filename,
- struct user_arg_ptr argv,
- struct user_arg_ptr envp)
+ struct user_arg_ptr argv,
+ struct user_arg_ptr envp)
{
struct linux_binprm *bprm;
struct file *file;
@@ -1514,12 +1521,12 @@ static int do_execve_common(const char *filename,
if (retval)
goto out_file;
- bprm->argc = count(argv, MAX_ARG_STRINGS);
- if ((retval = bprm->argc) < 0)
+ retval = bprm->argc = count(argv, MAX_ARG_STRINGS);
+ if (retval < 0)
goto out;
- bprm->envc = count(envp, MAX_ARG_STRINGS);
- if ((retval = bprm->envc) < 0)
+ retval = bprm->envc = count(envp, MAX_ARG_STRINGS);
+ if (retval < 0)
goto out;
retval = prepare_binprm(bprm);
@@ -1580,8 +1587,8 @@ out_ret:
}
int do_execve(const char *filename,
- const char __user *const __user *__argv,
- const char __user *const __user *__envp)
+ const char __user *const __user *__argv,
+ const char __user *const __user *__envp)
{
struct user_arg_ptr argv = { .ptr.native = __argv };
struct user_arg_ptr envp = { .ptr.native = __envp };
@@ -1590,8 +1597,8 @@ int do_execve(const char *filename,
#ifdef CONFIG_COMPAT
static int compat_do_execve(const char *filename,
- const compat_uptr_t __user *__argv,
- const compat_uptr_t __user *__envp)
+ const compat_uptr_t __user *__argv,
+ const compat_uptr_t __user *__envp)
{
struct user_arg_ptr argv = {
.is_compat = true,
@@ -1616,7 +1623,6 @@ void set_binfmt(struct linux_binfmt *new)
if (new)
__module_get(new->module);
}
-
EXPORT_SYMBOL(set_binfmt);
/*
@@ -1687,9 +1693,9 @@ SYSCALL_DEFINE3(execve,
return error;
}
#ifdef CONFIG_COMPAT
-asmlinkage long compat_sys_execve(const char __user * filename,
- const compat_uptr_t __user * argv,
- const compat_uptr_t __user * envp)
+asmlinkage long compat_sys_execve(const char __user *filename,
+ const compat_uptr_t __user *argv,
+ const compat_uptr_t __user *envp)
{
struct filename *path = getname(filename);
int error = PTR_ERR(path);
--
1.8.4
--
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