From: Hans de Goede Date: Wed, 9 Oct 2019 12:32:23 +0000 (+0200) Subject: staging: rtl8723bs: Remove File operation APIs X-Git-Tag: v5.5-rc1~135^2~279 X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=38c077d7070c5a9808f55227bafde0999a91fe02;p=tomoyo%2Ftomoyo-test1.git staging: rtl8723bs: Remove File operation APIs rtl8723bs had 2 private file operation helpers: rtw_is_file_readable() rtw_retrive_from_file() These were only used by the removed phy_Config*WithParaFile() functions, so they can be removed now. Signed-off-by: Hans de Goede Link: https://lore.kernel.org/r/20191009123223.163241-5-hdegoede@redhat.com Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/rtl8723bs/include/osdep_service.h b/drivers/staging/rtl8723bs/include/osdep_service.h index 81a9c19ecc6a..a40cf7b60a69 100644 --- a/drivers/staging/rtl8723bs/include/osdep_service.h +++ b/drivers/staging/rtl8723bs/include/osdep_service.h @@ -171,10 +171,6 @@ extern void rtw_softap_lock_suspend(void); extern void rtw_softap_unlock_suspend(void); #endif -/* File operation APIs, just for linux now */ -extern int rtw_is_file_readable(char *path); -extern int rtw_retrive_from_file(char *path, u8 *buf, u32 sz); - extern void rtw_free_netdev(struct net_device * netdev); diff --git a/drivers/staging/rtl8723bs/os_dep/osdep_service.c b/drivers/staging/rtl8723bs/os_dep/osdep_service.c index 25a80041ce87..f5614e56371e 100644 --- a/drivers/staging/rtl8723bs/os_dep/osdep_service.c +++ b/drivers/staging/rtl8723bs/os_dep/osdep_service.c @@ -65,142 +65,6 @@ void _rtw_init_queue(struct __queue *pqueue) spin_lock_init(&(pqueue->lock)); } -/* -* 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 *buf, int len) -{ - int rlen = 0, sum = 0; - - if (!fp->f_op || !fp->f_op->read) - return -EPERM; - - while (sum < len) { - rlen = kernel_read(fp, buf + sum, len - sum, &fp->f_pos); - if (rlen > 0) - sum += rlen; - else if (0 != rlen) - return rlen; - 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; - char buf; - - fp = filp_open(path, O_RDONLY, 0); - if (IS_ERR(fp)) - return PTR_ERR(fp); - - if (readFile(fp, &buf, 1) != 1) - ret = -EINVAL; - - 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 retriveFromFile(char *path, u8 *buf, u32 sz) -{ - int ret = -1; - struct file *fp; - - if (path && buf) { - ret = openFile(&fp, path, O_RDONLY, 0); - - if (ret == 0) { - DBG_871X("%s openFile path:%s fp =%p\n", __func__, path , fp); - - ret = readFile(fp, buf, sz); - closeFile(fp); - - DBG_871X("%s readFile, ret:%d\n", __func__, ret); - - } else { - DBG_871X("%s openFile path:%s Fail, ret:%d\n", __func__, path, ret); - } - } else { - DBG_871X("%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 *buf, u32 sz) -{ - int ret = retriveFromFile(path, buf, sz); - return ret >= 0 ? ret : 0; -} - struct net_device *rtw_alloc_etherdev_with_old_priv(int sizeof_priv, void *old_priv) { struct net_device *pnetdev;