[U-Boot] [U-Boot, v2, 3/5] spl: fit: Eanble GZIP support for image decompression

York Sun york.sun at nxp.com
Wed Sep 13 21:07:38 UTC 2017


On 09/13/2017 01:38 PM, Heinrich Schuchardt wrote:
> On 08/08/2017 01:16 AM, York Sun wrote:
>> Add Kconfig option SPL_GZIP and SPL_ZLIB to enable gunzip support for
>> SPL boot, eg. falcon boot compressed kernel image.
>>
>> Signed-off-by: York Sun <york.sun at nxp.com>
>> Reviewed-by: Tom Rini <trini at konsulko.com>
>> ---
>>
>> Changes in v2:
>> Combine Kconfig change and actual code into one patch
>>
>>   common/spl/spl_fit.c | 28 ++++++++++++++++++++++++++--
>>   lib/Kconfig          |  8 ++++++++
>>   lib/Makefile         |  5 +++--
>>   3 files changed, 37 insertions(+), 4 deletions(-)

<snip>

>> -	memcpy((void*)load_addr, src, length);
>> +#if defined(CONFIG_SPL_OS_BOOT) && defined(CONFIG_SPL_GZIP)
>> +	if (image_comp == IH_COMP_GZIP && type == IH_TYPE_KERNEL) {
>> +		if (gunzip((void *)load_addr, CONFIG_SYS_BOOTM_LEN,
>> +			   src, &length)) {
> 
> In this file length is defined as size_t.
> 
> In include/common.h the last parameter of gunzip is defined as unsigned
> long *.
> 
> This leads to a compilation warning and probably incorrect results:
>    CC      spl/common/spl/spl_fit.o
> common/spl/spl_fit.c: In function ‘spl_load_fit_image’:
> common/spl/spl_fit.c:201:12: warning: passing argument 4 of ‘gunzip’
> from incompatible pointer type [-Wincompatible-pointer-types]
>         src, &length)) {
> 
> Please, correct the patch to pass a compatible parameter.
> The patch already made it into the U-Boot git master.
> So possibly you want to send a follow up patch.
>

Heinrich,

Thanks for the heads up. I used travis-ci to build all targets but 
didn't see this warning. What target did you build?

York


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