Re: [PATCH 12/16] Fix types in EFI calls to match EFI function definitions.

Grant Likely
2013-08-30T13:39:02Z

On Fri, 9 Aug 2013 16:26:13 -0700, Roy Franz <roy.franz-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> wrote:
> EFI calls can made directly on ARM, so the function pointers
> are directly invoked. This allows types to be checked at
> compile time, so here we ensure that the parameters match
> the function signature.
>
> Signed-off-by: Roy Franz <roy.franz-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
> ---
> drivers/firmware/efi/efi-stub-helper.c | 15 +++++++++------
> 1 file changed, 9 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/firmware/efi/efi-stub-helper.c b/drivers/firmware/efi/efi-stub-helper.c
> index b707a9f..4bb542f 100644
> --- a/drivers/firmware/efi/efi-stub-helper.c
> +++ b/drivers/firmware/efi/efi-stub-helper.c
> @@ -321,7 +321,7 @@ static efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
> status = efi_call_phys3(sys_table_arg->boottime->allocate_pool,
> EFI_LOADER_DATA,
> nr_files * sizeof(*files),
> - &files);
> + (void **)&files);
> if (status != EFI_SUCCESS) {
> efi_printk(sys_table_arg, "Failed to alloc mem for file handle list\n");
> goto fail;
> @@ -372,7 +372,8 @@ static efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
> boottime = sys_table_arg->boottime;
>
> status = efi_call_phys3(boottime->handle_protocol,
> - image->device_handle, &fs_proto, &io);
> + image->device_handle, &fs_proto,
> + (void **)&io);
> if (status != EFI_SUCCESS) {
> efi_printk(sys_table_arg, "Failed to handle fs_proto\n");
> goto free_files;
> @@ -406,7 +407,8 @@ static efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
>
> grow:
> status = efi_call_phys3(sys_table_arg->boottime->allocate_pool,
> - EFI_LOADER_DATA, info_sz, &info);
> + EFI_LOADER_DATA, info_sz,
> + (void **)&info);
> if (status != EFI_SUCCESS) {
> efi_printk(sys_table_arg, "Failed to alloc mem for file info\n");
> goto close_handles;
> @@ -456,18 +458,19 @@ grow:
>
> addr = file_addr;
> for (j = 0; j < nr_files; j++) {
> - u64 size;
> + unsigned long size;
>
> size = files[j].size;
> while (size) {
> - u64 chunksize;
> + unsigned long chunksize;
> if (size > EFI_READ_CHUNK_SIZE)
> chunksize = EFI_READ_CHUNK_SIZE;
> else
> chunksize = size;
> status = efi_call_phys3(fh->read,
> files[j].handle,
> - &chunksize, addr);
> + &chunksize,
> + (void *)addr);

I think you need some description in the commit text about why the type
of chunksize is changing. It's not clear why you're making this change.
It is a bug fix?

g.