From: Nathan Chancellor <natechancellor@gmail.com>
To: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Ohad Ben-Cohen <ohad@wizery.com>,
linux-arm-msm@vger.kernel.org, linux-remoteproc@vger.kernel.org,
linux-kernel@vger.kernel.org, Lee Jones <lee.jones@linaro.org>
Subject: Re: [PATCH] remoteproc: qcom: pil-info: Fix shift overflow
Date: Thu, 16 Jul 2020 19:13:13 -0700 [thread overview]
Message-ID: <20200717021313.GA4098480@ubuntu-n2-xlarge-x86> (raw)
In-Reply-To: <20200716054817.157608-1-bjorn.andersson@linaro.org>
On Wed, Jul 15, 2020 at 10:48:17PM -0700, Bjorn Andersson wrote:
> On platforms with 32-bit phys_addr_t the shift to get the upper word of
> the base address of the memory region is invalid. Cast the base to 64
> bit to resolv this.
>
> Fixes: 549b67da660d ("remoteproc: qcom: Introduce helper to store pil info in IMEM")
> Reported-by: Lee Jones <lee.jones@linaro.org>
> Reported-by: Nathan Chancellor <natechancellor@gmail.com>
> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Tested-by: Nathan Chancellor <natechancellor@gmail.com> # build
> ---
> drivers/remoteproc/qcom_pil_info.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/remoteproc/qcom_pil_info.c b/drivers/remoteproc/qcom_pil_info.c
> index 0536e3904669..5521c4437ffa 100644
> --- a/drivers/remoteproc/qcom_pil_info.c
> +++ b/drivers/remoteproc/qcom_pil_info.c
> @@ -108,7 +108,7 @@ int qcom_pil_info_store(const char *image, phys_addr_t base, size_t size)
> found_existing:
> /* Use two writel() as base is only aligned to 4 bytes on odd entries */
> writel(base, entry + PIL_RELOC_NAME_LEN);
> - writel(base >> 32, entry + PIL_RELOC_NAME_LEN + 4);
> + writel((u64)base >> 32, entry + PIL_RELOC_NAME_LEN + 4);
> writel(size, entry + PIL_RELOC_NAME_LEN + sizeof(__le64));
> mutex_unlock(&pil_reloc_lock);
>
> --
> 2.26.2
>
next prev parent reply other threads:[~2020-07-17 2:13 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-16 5:48 [PATCH] remoteproc: qcom: pil-info: Fix shift overflow Bjorn Andersson
2020-07-17 2:13 ` Nathan Chancellor [this message]
2020-07-18 0:20 ` patchwork-bot+linux-remoteproc
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