From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A7C68C10F27 for ; Mon, 9 Mar 2020 17:52:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6598E20727 for ; Mon, 9 Mar 2020 17:52:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="INIBXBX6" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727365AbgCIRwg (ORCPT ); Mon, 9 Mar 2020 13:52:36 -0400 Received: from mail-pf1-f193.google.com ([209.85.210.193]:45678 "EHLO mail-pf1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726269AbgCIRwf (ORCPT ); Mon, 9 Mar 2020 13:52:35 -0400 Received: by mail-pf1-f193.google.com with SMTP id 2so5137001pfg.12 for ; Mon, 09 Mar 2020 10:52:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=/wJ7rT1GtSyE5nEypYLWNIdO4a6Z6R72pTKqw/weW+g=; b=INIBXBX6icPbAVcfZ0x1YkaXxq4BiHD4Qny1CNcNreAk/hIgK6rcFzu9qylC/DUlgr DUCVeP3iPEebBRKMF4GMxfuIx4mYQ3hp75YkMq3urj4nemi7TDqhTUoKKmolgtQMRNKe MkZ6GQ5k0mLm+NDYnFw6gtSvd8X9WHvnr2dTdb41dHCIyuDRhVrrjQXU8LxZrrEqfO1z v56INAenO5lWv/W3goYSG/z8skv4iCLAu8JZZNFVTE2V/Z6Xe8UMp0CMiE5jJHWaAlB6 +DGFgMzRl1+f7ClIrrfoGBNGwGU5+JC+79TH/hvRVTffsaZVRxFwx6TGuJkx9n1OHxlN 3J8w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=/wJ7rT1GtSyE5nEypYLWNIdO4a6Z6R72pTKqw/weW+g=; b=ZMyVzMtoRJVkj4aZLqqWNeSN+l/+L3DA1bbeTLF2BZuTW57DYZX8URJGZfh05W3l01 BWM8otMkOWey9ZuDoA3HoTz0oloG19/7sJdL4DxmUF6kNs5z5hH81YoIZQzyOMbVWtld tNWRHZw44fLsU8K+J8urEfT02/jW7nfzk5Vzlysig5eyBTorPtQg3+XqNIiDrK6JuOoI NYTBFrIo0K3rUhRiSkyn8qi9Jz0dW6XYbYE9Sf4QaD1L1DVEvO71cHoqdqthRhoobVdx iTr6iLFxZh6lU4XTx0x7E0fbarqm5kp3ylF5hpNzU7ORJX0bu8ZgT5td6qkZJax1Sl/q bh6w== X-Gm-Message-State: ANhLgQ15Ynoo1lmj2abb0iwm1xAddH8wJrh5QGtVM8Pb1xfuPmxpHiwT cP9uUWar2gPWLT1TjiKlgP7GFQ== X-Google-Smtp-Source: ADFU+vuNlu7eHfxcfchnqqQATrBjENRQ9JAj8eQymH/Wvx1zTX1fa9jbXKQY9/RW5MygeNgkp7dIYQ== X-Received: by 2002:a63:a062:: with SMTP id u34mr17877163pgn.286.1583776353994; Mon, 09 Mar 2020 10:52:33 -0700 (PDT) Received: from xps15 (S0106002369de4dac.cg.shawcable.net. [68.147.8.254]) by smtp.gmail.com with ESMTPSA id w81sm32499834pff.22.2020.03.09.10.52.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 Mar 2020 10:52:33 -0700 (PDT) Date: Mon, 9 Mar 2020 11:52:31 -0600 From: Mathieu Poirier To: Clement Leger Cc: Ohad Ben-Cohen , Bjorn Andersson , Jonathan Corbet , Shawn Guo , Sascha Hauer , linux-remoteproc@vger.kernel.org, Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , Andy Gross , Patrice Chotard , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, Arnaud Pouliquen , Loic PALLARDY , s-anna Subject: Re: [PATCH v5 1/8] remoteproc: Use size_t type for len in da_to_va Message-ID: <20200309175231.GA1399@xps15> References: <20200210162209.23149-1-cleger@kalray.eu> <20200302093902.27849-1-cleger@kalray.eu> <20200302093902.27849-2-cleger@kalray.eu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200302093902.27849-2-cleger@kalray.eu> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Mar 02, 2020 at 10:38:55AM +0100, Clement Leger wrote: > With upcoming changes in elf loader for elf64 support, section size will > be a u64. When used with da_to_va, this will potentially lead to > overflow if using the current "int" type for len argument. Change > da_to_va prototype to use a size_t for len and fix all users of this > function. > > Signed-off-by: Clement Leger Reviewed-by: Mathieu Poirier > --- > drivers/remoteproc/imx_rproc.c | 11 ++++++----- > drivers/remoteproc/keystone_remoteproc.c | 4 ++-- > drivers/remoteproc/qcom_q6v5_adsp.c | 2 +- > drivers/remoteproc/qcom_q6v5_mss.c | 2 +- > drivers/remoteproc/qcom_q6v5_pas.c | 2 +- > drivers/remoteproc/qcom_q6v5_wcss.c | 2 +- > drivers/remoteproc/qcom_wcnss.c | 2 +- > drivers/remoteproc/remoteproc_core.c | 2 +- > drivers/remoteproc/remoteproc_internal.h | 2 +- > drivers/remoteproc/st_slim_rproc.c | 4 ++-- > drivers/remoteproc/wkup_m3_rproc.c | 4 ++-- > include/linux/remoteproc.h | 2 +- > 12 files changed, 20 insertions(+), 19 deletions(-) > > diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c > index 3e72b6f38d4b..8957ed271d20 100644 > --- a/drivers/remoteproc/imx_rproc.c > +++ b/drivers/remoteproc/imx_rproc.c > @@ -186,7 +186,7 @@ static int imx_rproc_stop(struct rproc *rproc) > } > > static int imx_rproc_da_to_sys(struct imx_rproc *priv, u64 da, > - int len, u64 *sys) > + size_t len, u64 *sys) > { > const struct imx_rproc_dcfg *dcfg = priv->dcfg; > int i; > @@ -203,19 +203,19 @@ static int imx_rproc_da_to_sys(struct imx_rproc *priv, u64 da, > } > } > > - dev_warn(priv->dev, "Translation failed: da = 0x%llx len = 0x%x\n", > + dev_warn(priv->dev, "Translation failed: da = 0x%llx len = 0x%zx\n", > da, len); > return -ENOENT; > } > > -static void *imx_rproc_da_to_va(struct rproc *rproc, u64 da, int len) > +static void *imx_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len) > { > struct imx_rproc *priv = rproc->priv; > void *va = NULL; > u64 sys; > int i; > > - if (len <= 0) > + if (len == 0) > return NULL; > > /* > @@ -235,7 +235,8 @@ static void *imx_rproc_da_to_va(struct rproc *rproc, u64 da, int len) > } > } > > - dev_dbg(&rproc->dev, "da = 0x%llx len = 0x%x va = 0x%p\n", da, len, va); > + dev_dbg(&rproc->dev, "da = 0x%llx len = 0x%zx va = 0x%p\n", > + da, len, va); > > return va; > } > diff --git a/drivers/remoteproc/keystone_remoteproc.c b/drivers/remoteproc/keystone_remoteproc.c > index 5c4658f00b3d..cd266163a65f 100644 > --- a/drivers/remoteproc/keystone_remoteproc.c > +++ b/drivers/remoteproc/keystone_remoteproc.c > @@ -246,7 +246,7 @@ static void keystone_rproc_kick(struct rproc *rproc, int vqid) > * can be used either by the remoteproc core for loading (when using kernel > * remoteproc loader), or by any rpmsg bus drivers. > */ > -static void *keystone_rproc_da_to_va(struct rproc *rproc, u64 da, int len) > +static void *keystone_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len) > { > struct keystone_rproc *ksproc = rproc->priv; > void __iomem *va = NULL; > @@ -255,7 +255,7 @@ static void *keystone_rproc_da_to_va(struct rproc *rproc, u64 da, int len) > size_t size; > int i; > > - if (len <= 0) > + if (len == 0) > return NULL; > > for (i = 0; i < ksproc->num_mems; i++) { > diff --git a/drivers/remoteproc/qcom_q6v5_adsp.c b/drivers/remoteproc/qcom_q6v5_adsp.c > index e953886b2eb7..2b01f2282062 100644 > --- a/drivers/remoteproc/qcom_q6v5_adsp.c > +++ b/drivers/remoteproc/qcom_q6v5_adsp.c > @@ -270,7 +270,7 @@ static int adsp_stop(struct rproc *rproc) > return ret; > } > > -static void *adsp_da_to_va(struct rproc *rproc, u64 da, int len) > +static void *adsp_da_to_va(struct rproc *rproc, u64 da, size_t len) > { > struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv; > int offset; > diff --git a/drivers/remoteproc/qcom_q6v5_mss.c b/drivers/remoteproc/qcom_q6v5_mss.c > index 471128a2e723..3401a17f8ce6 100644 > --- a/drivers/remoteproc/qcom_q6v5_mss.c > +++ b/drivers/remoteproc/qcom_q6v5_mss.c > @@ -1148,7 +1148,7 @@ static int q6v5_stop(struct rproc *rproc) > return 0; > } > > -static void *q6v5_da_to_va(struct rproc *rproc, u64 da, int len) > +static void *q6v5_da_to_va(struct rproc *rproc, u64 da, size_t len) > { > struct q6v5 *qproc = rproc->priv; > int offset; > diff --git a/drivers/remoteproc/qcom_q6v5_pas.c b/drivers/remoteproc/qcom_q6v5_pas.c > index db4b3c4bacd7..4e89d04673a4 100644 > --- a/drivers/remoteproc/qcom_q6v5_pas.c > +++ b/drivers/remoteproc/qcom_q6v5_pas.c > @@ -159,7 +159,7 @@ static int adsp_stop(struct rproc *rproc) > return ret; > } > > -static void *adsp_da_to_va(struct rproc *rproc, u64 da, int len) > +static void *adsp_da_to_va(struct rproc *rproc, u64 da, size_t len) > { > struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv; > int offset; > diff --git a/drivers/remoteproc/qcom_q6v5_wcss.c b/drivers/remoteproc/qcom_q6v5_wcss.c > index f93e1e4a1cc0..f1924b740a10 100644 > --- a/drivers/remoteproc/qcom_q6v5_wcss.c > +++ b/drivers/remoteproc/qcom_q6v5_wcss.c > @@ -406,7 +406,7 @@ static int q6v5_wcss_stop(struct rproc *rproc) > return 0; > } > > -static void *q6v5_wcss_da_to_va(struct rproc *rproc, u64 da, int len) > +static void *q6v5_wcss_da_to_va(struct rproc *rproc, u64 da, size_t len) > { > struct q6v5_wcss *wcss = rproc->priv; > int offset; > diff --git a/drivers/remoteproc/qcom_wcnss.c b/drivers/remoteproc/qcom_wcnss.c > index dc135754bb9c..0c7afd038f0d 100644 > --- a/drivers/remoteproc/qcom_wcnss.c > +++ b/drivers/remoteproc/qcom_wcnss.c > @@ -287,7 +287,7 @@ static int wcnss_stop(struct rproc *rproc) > return ret; > } > > -static void *wcnss_da_to_va(struct rproc *rproc, u64 da, int len) > +static void *wcnss_da_to_va(struct rproc *rproc, u64 da, size_t len) > { > struct qcom_wcnss *wcnss = (struct qcom_wcnss *)rproc->priv; > int offset; > diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c > index 307df98347ba..5ab094fc1b55 100644 > --- a/drivers/remoteproc/remoteproc_core.c > +++ b/drivers/remoteproc/remoteproc_core.c > @@ -185,7 +185,7 @@ EXPORT_SYMBOL(rproc_va_to_pa); > * here the output of the DMA API for the carveouts, which should be more > * correct. > */ > -void *rproc_da_to_va(struct rproc *rproc, u64 da, int len) > +void *rproc_da_to_va(struct rproc *rproc, u64 da, size_t len) > { > struct rproc_mem_entry *carveout; > void *ptr = NULL; > diff --git a/drivers/remoteproc/remoteproc_internal.h b/drivers/remoteproc/remoteproc_internal.h > index 493ef9262411..58580210575c 100644 > --- a/drivers/remoteproc/remoteproc_internal.h > +++ b/drivers/remoteproc/remoteproc_internal.h > @@ -50,7 +50,7 @@ void rproc_exit_sysfs(void); > void rproc_free_vring(struct rproc_vring *rvring); > int rproc_alloc_vring(struct rproc_vdev *rvdev, int i); > > -void *rproc_da_to_va(struct rproc *rproc, u64 da, int len); > +void *rproc_da_to_va(struct rproc *rproc, u64 da, size_t len); > phys_addr_t rproc_va_to_pa(void *cpu_addr); > int rproc_trigger_recovery(struct rproc *rproc); > > diff --git a/drivers/remoteproc/st_slim_rproc.c b/drivers/remoteproc/st_slim_rproc.c > index 04492fead3c8..09bcb4d8b9e0 100644 > --- a/drivers/remoteproc/st_slim_rproc.c > +++ b/drivers/remoteproc/st_slim_rproc.c > @@ -174,7 +174,7 @@ static int slim_rproc_stop(struct rproc *rproc) > return 0; > } > > -static void *slim_rproc_da_to_va(struct rproc *rproc, u64 da, int len) > +static void *slim_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len) > { > struct st_slim_rproc *slim_rproc = rproc->priv; > void *va = NULL; > @@ -191,7 +191,7 @@ static void *slim_rproc_da_to_va(struct rproc *rproc, u64 da, int len) > } > } > > - dev_dbg(&rproc->dev, "da = 0x%llx len = 0x%x va = 0x%pK\n", > + dev_dbg(&rproc->dev, "da = 0x%llx len = 0x%zx va = 0x%pK\n", > da, len, va); > > return va; > diff --git a/drivers/remoteproc/wkup_m3_rproc.c b/drivers/remoteproc/wkup_m3_rproc.c > index 3984e585c847..b9349d684258 100644 > --- a/drivers/remoteproc/wkup_m3_rproc.c > +++ b/drivers/remoteproc/wkup_m3_rproc.c > @@ -80,14 +80,14 @@ static int wkup_m3_rproc_stop(struct rproc *rproc) > return 0; > } > > -static void *wkup_m3_rproc_da_to_va(struct rproc *rproc, u64 da, int len) > +static void *wkup_m3_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len) > { > struct wkup_m3_rproc *wkupm3 = rproc->priv; > void *va = NULL; > int i; > u32 offset; > > - if (len <= 0) > + if (len == 0) > return NULL; > > for (i = 0; i < WKUPM3_MEM_MAX; i++) { > diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h > index 16ad66683ad0..89215798eaea 100644 > --- a/include/linux/remoteproc.h > +++ b/include/linux/remoteproc.h > @@ -374,7 +374,7 @@ struct rproc_ops { > int (*start)(struct rproc *rproc); > int (*stop)(struct rproc *rproc); > void (*kick)(struct rproc *rproc, int vqid); > - void * (*da_to_va)(struct rproc *rproc, u64 da, int len); > + void * (*da_to_va)(struct rproc *rproc, u64 da, size_t len); > int (*parse_fw)(struct rproc *rproc, const struct firmware *fw); > int (*handle_rsc)(struct rproc *rproc, u32 rsc_type, void *rsc, > int offset, int avail); > -- > 2.15.0.276.g89ea799 >