From: Al Viro Date: Sun, 22 Sep 2013 18:42:05 +0000 (-0400) Subject: rtl8188eu: remove dead code X-Git-Tag: v3.13-rc1~107^2~84 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=22bd002ee76aa7d7a3393f39d977f6c106153c60;p=kernel%2Fkernel-generic.git rtl8188eu: remove dead code Signed-off-by: Al Viro --- diff --git a/drivers/staging/rtl8188eu/include/osdep_service.h b/drivers/staging/rtl8188eu/include/osdep_service.h index 44f24fa..36523ed 100644 --- a/drivers/staging/rtl8188eu/include/osdep_service.h +++ b/drivers/staging/rtl8188eu/include/osdep_service.h @@ -430,11 +430,6 @@ int ATOMIC_SUB_RETURN(ATOMIC_T *v, int i); int ATOMIC_INC_RETURN(ATOMIC_T *v); int ATOMIC_DEC_RETURN(ATOMIC_T *v); -/* File operation APIs, just for linux now */ -int rtw_is_file_readable(char *path); -int rtw_retrive_from_file(char *path, u8 __user *buf, u32 sz); -int rtw_store_to_file(char *path, u8 __user *buf, u32 sz); - struct rtw_netdev_priv_indicator { void *priv; u32 sizeof_priv; diff --git a/drivers/staging/rtl8188eu/os_dep/osdep_service.c b/drivers/staging/rtl8188eu/os_dep/osdep_service.c index 4e0bfb7..4aedb85 100644 --- a/drivers/staging/rtl8188eu/os_dep/osdep_service.c +++ b/drivers/staging/rtl8188eu/os_dep/osdep_service.c @@ -356,214 +356,6 @@ inline int ATOMIC_DEC_RETURN(ATOMIC_T *v) return atomic_dec_return(v); } -/* Open a file with the specific @param path, @param flag, @param mode - * @param fpp the pointer of struct file pointer to get struct file pointer while file opening is success - * @param path the path of the file to open - * @param flag file operation flags, please refer to linux document - * @param mode please refer to linux document - * @return Linux specific error code - */ -static int openfile(struct file **fpp, char *path, int flag, int mode) -{ - struct file *fp; - - fp = filp_open(path, flag, mode); - if (IS_ERR(fp)) { - *fpp = NULL; - return PTR_ERR(fp); - } else { - *fpp = fp; - return 0; - } -} - -/* Close the file with the specific @param fp - * @param fp the pointer of struct file to close - * @return always 0 - */ -static int closefile(struct file *fp) -{ - filp_close(fp, NULL); - return 0; -} - -static int readfile(struct file *fp, char __user *buf, int len) -{ - int rlen = 0, sum = 0; - - if (!fp->f_op || !fp->f_op->read) - return -EPERM; - - while (sum < len) { - rlen = fp->f_op->read(fp, buf+sum, len-sum, &fp->f_pos); - if (rlen > 0) - sum += rlen; - else if (0 != rlen) - return rlen; - else - break; - } - return sum; -} - -static int writefile(struct file *fp, char __user *buf, int len) -{ - int wlen = 0, sum = 0; - - if (!fp->f_op || !fp->f_op->write) - return -EPERM; - - while (sum < len) { - wlen = fp->f_op->write(fp, buf+sum, len-sum, &fp->f_pos); - if (wlen > 0) - sum += wlen; - else if (0 != wlen) - return wlen; - else - break; - } - return sum; -} - -/* Test if the specifi @param path is a file and readable - * @param path the path of the file to test - * @return Linux specific error code - */ -static int isfilereadable(char *path) -{ - struct file *fp; - int ret = 0; - mm_segment_t oldfs; - char __user buf; - - fp = filp_open(path, O_RDONLY, 0); - if (IS_ERR(fp)) { - ret = PTR_ERR(fp); - } else { - oldfs = get_fs(); set_fs(get_ds()); - - if (1 != readfile(fp, &buf, 1)) - ret = PTR_ERR(fp); - - set_fs(oldfs); - filp_close(fp, NULL); - } - return ret; -} - -/* Open the file with @param path and retrive the file content into - * memory starting from @param buf for @param sz at most - * @param path the path of the file to open and read - * @param buf the starting address of the buffer to store file content - * @param sz how many bytes to read at most - * @return the byte we've read, or Linux specific error code - */ -static int retrievefromfile(char *path, u8 __user *buf, u32 sz) -{ - int ret = -1; - mm_segment_t oldfs; - struct file *fp; - - if (path && buf) { - ret = openfile(&fp, path, O_RDONLY, 0); - if (0 == ret) { - DBG_88E("%s openfile path:%s fp =%p\n", __func__, - path, fp); - - oldfs = get_fs(); set_fs(get_ds()); - ret = readfile(fp, buf, sz); - set_fs(oldfs); - closefile(fp); - - DBG_88E("%s readfile, ret:%d\n", __func__, ret); - - } else { - DBG_88E("%s openfile path:%s Fail, ret:%d\n", __func__, - path, ret); - } - } else { - DBG_88E("%s NULL pointer\n", __func__); - ret = -EINVAL; - } - return ret; -} - -/* -* Open the file with @param path and wirte @param sz byte of data starting from @param buf into the file -* @param path the path of the file to open and write -* @param buf the starting address of the data to write into file -* @param sz how many bytes to write at most -* @return the byte we've written, or Linux specific error code -*/ -static int storetofile(char *path, u8 __user *buf, u32 sz) -{ - int ret = 0; - mm_segment_t oldfs; - struct file *fp; - - if (path && buf) { - ret = openfile(&fp, path, O_CREAT|O_WRONLY, 0666); - if (0 == ret) { - DBG_88E("%s openfile path:%s fp =%p\n", __func__, path, fp); - - oldfs = get_fs(); set_fs(get_ds()); - ret = writefile(fp, buf, sz); - set_fs(oldfs); - closefile(fp); - - DBG_88E("%s writefile, ret:%d\n", __func__, ret); - - } else { - DBG_88E("%s openfile path:%s Fail, ret:%d\n", __func__, path, ret); - } - } else { - DBG_88E("%s NULL pointer\n", __func__); - ret = -EINVAL; - } - return ret; -} - -/* -* Test if the specifi @param path is a file and readable -* @param path the path of the file to test -* @return true or false -*/ -int rtw_is_file_readable(char *path) -{ - if (isfilereadable(path) == 0) - return true; - else - return false; -} - -/* -* Open the file with @param path and retrive the file content into memory starting from @param buf for @param sz at most -* @param path the path of the file to open and read -* @param buf the starting address of the buffer to store file content -* @param sz how many bytes to read at most -* @return the byte we've read -*/ -int rtw_retrive_from_file(char *path, u8 __user *buf, u32 sz) -{ - int ret = retrievefromfile(path, buf, sz); - - return ret >= 0 ? ret : 0; -} - -/* - * Open the file with @param path and wirte @param sz byte of data - * starting from @param buf into the file - * @param path the path of the file to open and write - * @param buf the starting address of the data to write into file - * @param sz how many bytes to write at most - * @return the byte we've written - */ -int rtw_store_to_file(char *path, u8 __user *buf, u32 sz) -{ - int ret = storetofile(path, buf, sz); - return ret >= 0 ? ret : 0; -} - struct net_device *rtw_alloc_etherdev_with_old_priv(int sizeof_priv, void *old_priv) {