From patchwork Mon Jun 6 09:02:03 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geert Uytterhoeven X-Patchwork-Id: 9157519 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id DE0A560572 for ; Mon, 6 Jun 2016 09:02:36 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B54FD2780C for ; Mon, 6 Jun 2016 09:02:36 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A9A7427D45; Mon, 6 Jun 2016 09:02:36 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1B2DA2654B for ; Mon, 6 Jun 2016 09:02:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751259AbcFFJCN (ORCPT ); Mon, 6 Jun 2016 05:02:13 -0400 Received: from laurent.telenet-ops.be ([195.130.137.89]:53070 "EHLO laurent.telenet-ops.be" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751025AbcFFJCL (ORCPT ); Mon, 6 Jun 2016 05:02:11 -0400 Received: from ayla.of.borg ([84.195.107.21]) by laurent.telenet-ops.be with bizsmtp id 3M221t00e0TjorY01M22YZ; Mon, 06 Jun 2016 11:02:09 +0200 Received: from ramsan.of.borg ([192.168.97.29] helo=ramsan) by ayla.of.borg with esmtp (Exim 4.82) (envelope-from ) id 1b9qQ6-0001hw-Rt; Mon, 06 Jun 2016 11:02:02 +0200 Received: from geert by ramsan with local (Exim 4.82) (envelope-from ) id 1b9qQC-0004Pd-WB; Mon, 06 Jun 2016 11:02:09 +0200 From: Geert Uytterhoeven To: Marcel Holtmann , Gustavo Padovan , Johan Hedberg , Mauro Carvalho Chehab , Lauro Ramos Venancio , Aloisio Almeida Jr , Samuel Ortiz , Greg Kroah-Hartman Cc: Pavan Savoy , Arnd Bergmann , linux-bluetooth@vger.kernel.org, linux-media@vger.kernel.org, linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, Geert Uytterhoeven Subject: [PATCH] drivers: misc: ti-st: Use int instead of fuzzy char for callback status Date: Mon, 6 Jun 2016 11:02:03 +0200 Message-Id: <1465203723-16928-1-git-send-email-geert@linux-m68k.org> X-Mailer: git-send-email 1.9.1 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP On mips and parisc: drivers/bluetooth/btwilink.c: In function 'ti_st_open': drivers/bluetooth/btwilink.c:174:21: warning: overflow in implicit constant conversion [-Woverflow] hst->reg_status = -EINPROGRESS; drivers/nfc/nfcwilink.c: In function 'nfcwilink_open': drivers/nfc/nfcwilink.c:396:31: warning: overflow in implicit constant conversion [-Woverflow] drv->st_register_cb_status = -EINPROGRESS; There are actually two issues: 1. Whether "char" is signed or unsigned depends on the architecture. As the completion callback data is used to pass a (negative) error code, it should always be signed. 2. EINPROGRESS is 150 on mips, 245 on parisc. Hence -EINPROGRESS doesn't fit in a signed 8-bit number. Change the callback status from "char" to "int" to fix these. Signed-off-by: Geert Uytterhoeven Acked-by: Mauro Carvalho Chehab --- Compile-tested only. --- drivers/bluetooth/btwilink.c | 4 ++-- drivers/media/radio/wl128x/fmdrv_common.c | 2 +- drivers/misc/ti-st/st_core.c | 2 +- drivers/nfc/nfcwilink.c | 4 ++-- include/linux/ti_wilink_st.h | 2 +- 5 files changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/bluetooth/btwilink.c b/drivers/bluetooth/btwilink.c index 24a652f9252be899..485281b3f1677678 100644 --- a/drivers/bluetooth/btwilink.c +++ b/drivers/bluetooth/btwilink.c @@ -51,7 +51,7 @@ */ struct ti_st { struct hci_dev *hdev; - char reg_status; + int reg_status; long (*st_write) (struct sk_buff *); struct completion wait_reg_completion; }; @@ -83,7 +83,7 @@ static inline void ti_st_tx_complete(struct ti_st *hst, int pkt_type) * status.ti_st_open() function will wait for signal from this * API when st_register() function returns ST_PENDING. */ -static void st_reg_completion_cb(void *priv_data, char data) +static void st_reg_completion_cb(void *priv_data, int data) { struct ti_st *lhst = priv_data; diff --git a/drivers/media/radio/wl128x/fmdrv_common.c b/drivers/media/radio/wl128x/fmdrv_common.c index 3f9e6df7d837ac27..642b89c66bcb99eb 100644 --- a/drivers/media/radio/wl128x/fmdrv_common.c +++ b/drivers/media/radio/wl128x/fmdrv_common.c @@ -1472,7 +1472,7 @@ static long fm_st_receive(void *arg, struct sk_buff *skb) * Called by ST layer to indicate protocol registration completion * status. */ -static void fm_st_reg_comp_cb(void *arg, char data) +static void fm_st_reg_comp_cb(void *arg, int data) { struct fmdev *fmdev; diff --git a/drivers/misc/ti-st/st_core.c b/drivers/misc/ti-st/st_core.c index dcdbd58672ccc6d2..00051590e00f9647 100644 --- a/drivers/misc/ti-st/st_core.c +++ b/drivers/misc/ti-st/st_core.c @@ -141,7 +141,7 @@ static void st_send_frame(unsigned char chnl_id, struct st_data_s *st_gdata) * This function is being called with spin lock held, protocol drivers are * only expected to complete their waits and do nothing more than that. */ -static void st_reg_complete(struct st_data_s *st_gdata, char err) +static void st_reg_complete(struct st_data_s *st_gdata, int err) { unsigned char i = 0; pr_info(" %s ", __func__); diff --git a/drivers/nfc/nfcwilink.c b/drivers/nfc/nfcwilink.c index f81e500e765061fd..3fbd18b8e473f696 100644 --- a/drivers/nfc/nfcwilink.c +++ b/drivers/nfc/nfcwilink.c @@ -94,7 +94,7 @@ struct nfcwilink { struct nci_dev *ndev; unsigned long flags; - char st_register_cb_status; + int st_register_cb_status; long (*st_write) (struct sk_buff *); struct completion completed; @@ -320,7 +320,7 @@ exit: } /* Called by ST when registration is complete */ -static void nfcwilink_register_complete(void *priv_data, char data) +static void nfcwilink_register_complete(void *priv_data, int data) { struct nfcwilink *drv = priv_data; diff --git a/include/linux/ti_wilink_st.h b/include/linux/ti_wilink_st.h index 0a0d56834c8eb412..f2293028ab9d65e6 100644 --- a/include/linux/ti_wilink_st.h +++ b/include/linux/ti_wilink_st.h @@ -71,7 +71,7 @@ struct st_proto_s { enum proto_type type; long (*recv) (void *, struct sk_buff *); unsigned char (*match_packet) (const unsigned char *data); - void (*reg_complete_cb) (void *, char data); + void (*reg_complete_cb) (void *, int data); long (*write) (struct sk_buff *skb); void *priv_data;