Re: [PATCH V4 2/6] remoteproc: fix the wrong default value of is_iomem

From: Mathieu Poirier
Date: Mon Sep 20 2021 - 13:45:06 EST


On Fri, Sep 10, 2021 at 05:06:17PM +0800, Peng Fan (OSS) wrote:
> From: Dong Aisheng <aisheng.dong@xxxxxxx>
>
> 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@xxxxxxxxxx>
> Cc: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
> Fixes: 40df0a91b2a5 ("remoteproc: add is_iomem to da_to_va")
> Reviewed-and-tested-by: Peng Fan <peng.fan@xxxxxxx>
> Signed-off-by: Dong Aisheng <aisheng.dong@xxxxxxx>
> Signed-off-by: Peng Fan <peng.fan@xxxxxxx>
> ---
> drivers/remoteproc/remoteproc_coredump.c | 2 +-
> drivers/remoteproc/remoteproc_elf_loader.c | 2 +-
> 2 files changed, 2 insertions(+), 2 deletions(-)
>

Applied

> diff --git a/drivers/remoteproc/remoteproc_coredump.c b/drivers/remoteproc/remoteproc_coredump.c
> index aee657cc08c6a..c892f433a323e 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 44e7f9308f4bc..d635d19a5aa8a 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
>