[PATCH v3 1/5] remoteproc: fix the wrong default value of is_iomem

Peng Fan (OSS) peng.fan at oss.nxp.com
Thu Aug 5 02:58:30 PDT 2021


> Subject: [PATCH v3 1/5] remoteproc: fix the wrong default value of is_iomem
> 
> Currently the is_iomem is a random value in the stack which may be default
> to true even on those platforms that not use iomem to store firmware.
> 
> Cc: Bjorn Andersson <bjorn.andersson at linaro.org>
> Cc: Mathieu Poirier <mathieu.poirier at linaro.org>
> Fixes: 40df0a91b2a5 ("remoteproc: add is_iomem to da_to_va")
> Reviewed-by: Peng Fan <peng.fan at nxp.com>
> Signed-off-by: Dong Aisheng <aisheng.dong at nxp.com>

Tested-by: Peng Fan <peng.fan at nxp.com>
with https://patchwork.kernel.org/project/linux-remoteproc/patch/20210629014752.5659-1-peng.fan@oss.nxp.com/

> ---
> v2->v3:
>  * no changes
> v1->v2:
>  * update rproc_copy_segment as well
> ---
>  drivers/remoteproc/remoteproc_coredump.c   | 2 +-
>  drivers/remoteproc/remoteproc_elf_loader.c | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/remoteproc/remoteproc_coredump.c
> b/drivers/remoteproc/remoteproc_coredump.c
> index aee657cc08c6..c892f433a323 100644
> --- a/drivers/remoteproc/remoteproc_coredump.c
> +++ b/drivers/remoteproc/remoteproc_coredump.c
> @@ -152,8 +152,8 @@ static void rproc_copy_segment(struct rproc *rproc,
> void *dest,
>  			       struct rproc_dump_segment *segment,
>  			       size_t offset, size_t size)
>  {
> +	bool is_iomem = false;
>  	void *ptr;
> -	bool is_iomem;
> 
>  	if (segment->dump) {
>  		segment->dump(rproc, segment, dest, offset, size); diff --git
> a/drivers/remoteproc/remoteproc_elf_loader.c
> b/drivers/remoteproc/remoteproc_elf_loader.c
> index e8078efb3dec..3cd1798f17a3 100644
> --- a/drivers/remoteproc/remoteproc_elf_loader.c
> +++ b/drivers/remoteproc/remoteproc_elf_loader.c
> @@ -178,8 +178,8 @@ int rproc_elf_load_segments(struct rproc *rproc,
> const struct firmware *fw)
>  		u64 filesz = elf_phdr_get_p_filesz(class, phdr);
>  		u64 offset = elf_phdr_get_p_offset(class, phdr);
>  		u32 type = elf_phdr_get_p_type(class, phdr);
> +		bool is_iomem = false;
>  		void *ptr;
> -		bool is_iomem;
> 
>  		if (type != PT_LOAD)
>  			continue;
> --
> 2.25.1




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