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Subject[PATCH v2] remoteproc: remove rproc_elf32_sanity_check
Date
Since checks are present in the remoteproc elf loader before calling
da_to_va, loading a elf64 will work on 32bits flavors of kernel.
Indeed, if a segment size is larger than what size_t can hold, the
loader will return an error so the functionality is equivalent to
what exists today.

Signed-off-by: Clement Leger <cleger@kalray.eu>
---
Changes from v1 -> v2:
- Remove possibity to override sanity_check operation

drivers/remoteproc/remoteproc_core.c | 3 +--
drivers/remoteproc/remoteproc_elf_loader.c | 21 ---------------------
drivers/remoteproc/remoteproc_internal.h | 1 -
drivers/remoteproc/st_remoteproc.c | 2 +-
drivers/remoteproc/st_slim_rproc.c | 2 +-
drivers/remoteproc/stm32_rproc.c | 2 +-
6 files changed, 4 insertions(+), 27 deletions(-)

diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
index a9ac1d01e09b..191560048c1a 100644
--- a/drivers/remoteproc/remoteproc_core.c
+++ b/drivers/remoteproc/remoteproc_core.c
@@ -2068,8 +2068,7 @@ struct rproc *rproc_alloc(struct device *dev, const char *name,
rproc->ops->load = rproc_elf_load_segments;
rproc->ops->parse_fw = rproc_elf_load_rsc_table;
rproc->ops->find_loaded_rsc_table = rproc_elf_find_loaded_rsc_table;
- if (!rproc->ops->sanity_check)
- rproc->ops->sanity_check = rproc_elf32_sanity_check;
+ rproc->ops->sanity_check = rproc_elf_sanity_check;
rproc->ops->get_boot_addr = rproc_elf_get_boot_addr;
}

diff --git a/drivers/remoteproc/remoteproc_elf_loader.c b/drivers/remoteproc/remoteproc_elf_loader.c
index 16e2c496fd45..29034f99898d 100644
--- a/drivers/remoteproc/remoteproc_elf_loader.c
+++ b/drivers/remoteproc/remoteproc_elf_loader.c
@@ -112,27 +112,6 @@ int rproc_elf_sanity_check(struct rproc *rproc, const struct firmware *fw)
}
EXPORT_SYMBOL(rproc_elf_sanity_check);

-/**
- * rproc_elf_sanity_check() - Sanity Check ELF32 firmware image
- * @rproc: the remote processor handle
- * @fw: the ELF32 firmware image
- *
- * Make sure this fw image is sane.
- */
-int rproc_elf32_sanity_check(struct rproc *rproc, const struct firmware *fw)
-{
- int ret = rproc_elf_sanity_check(rproc, fw);
-
- if (ret)
- return ret;
-
- if (fw_elf_get_class(fw) == ELFCLASS32)
- return 0;
-
- return -EINVAL;
-}
-EXPORT_SYMBOL(rproc_elf32_sanity_check);
-
/**
* rproc_elf_get_boot_addr() - Get rproc's boot address.
* @rproc: the remote processor handle
diff --git a/drivers/remoteproc/remoteproc_internal.h b/drivers/remoteproc/remoteproc_internal.h
index b389dc79da81..31994715fd43 100644
--- a/drivers/remoteproc/remoteproc_internal.h
+++ b/drivers/remoteproc/remoteproc_internal.h
@@ -54,7 +54,6 @@ 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);

-int rproc_elf32_sanity_check(struct rproc *rproc, const struct firmware *fw);
int rproc_elf_sanity_check(struct rproc *rproc, const struct firmware *fw);
u64 rproc_elf_get_boot_addr(struct rproc *rproc, const struct firmware *fw);
int rproc_elf_load_segments(struct rproc *rproc, const struct firmware *fw);
diff --git a/drivers/remoteproc/st_remoteproc.c b/drivers/remoteproc/st_remoteproc.c
index a6cbfa452764..a3268d95a50e 100644
--- a/drivers/remoteproc/st_remoteproc.c
+++ b/drivers/remoteproc/st_remoteproc.c
@@ -233,7 +233,7 @@ static const struct rproc_ops st_rproc_ops = {
.parse_fw = st_rproc_parse_fw,
.load = rproc_elf_load_segments,
.find_loaded_rsc_table = rproc_elf_find_loaded_rsc_table,
- .sanity_check = rproc_elf32_sanity_check,
+ .sanity_check = rproc_elf_sanity_check,
.get_boot_addr = rproc_elf_get_boot_addr,
};

diff --git a/drivers/remoteproc/st_slim_rproc.c b/drivers/remoteproc/st_slim_rproc.c
index 3cca8b65a8db..09bcb4d8b9e0 100644
--- a/drivers/remoteproc/st_slim_rproc.c
+++ b/drivers/remoteproc/st_slim_rproc.c
@@ -203,7 +203,7 @@ static const struct rproc_ops slim_rproc_ops = {
.da_to_va = slim_rproc_da_to_va,
.get_boot_addr = rproc_elf_get_boot_addr,
.load = rproc_elf_load_segments,
- .sanity_check = rproc_elf32_sanity_check,
+ .sanity_check = rproc_elf_sanity_check,
};

/**
diff --git a/drivers/remoteproc/stm32_rproc.c b/drivers/remoteproc/stm32_rproc.c
index 6a66dbf2df40..2e07a95439c8 100644
--- a/drivers/remoteproc/stm32_rproc.c
+++ b/drivers/remoteproc/stm32_rproc.c
@@ -505,7 +505,7 @@ static struct rproc_ops st_rproc_ops = {
.load = rproc_elf_load_segments,
.parse_fw = stm32_rproc_parse_fw,
.find_loaded_rsc_table = rproc_elf_find_loaded_rsc_table,
- .sanity_check = rproc_elf32_sanity_check,
+ .sanity_check = rproc_elf_sanity_check,
.get_boot_addr = rproc_elf_get_boot_addr,
};

--
2.17.1
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