[U-Boot] [PATCH] Don't try to stat() a colon separated list of files in multi or script mode

[Simon Glass]

Hi,

On 3 December 2015 at 14:55, Nye Liu <nyet at nyet.org> wrote:
>
> On 11/19/2015 6:15 AM, Simon Glass wrote:
>> Hi,
>>
>> On 18 November 2015 at 17:37, Nye Liu <nyet at nyet.org> wrote:
>>> ---
>>>  tools/mkimage.c | 32 +++++++++++++++++++-------------
>>>  1 file changed, 19 insertions(+), 13 deletions(-)
>>>
>>
>> Can you please add a commit message explaining the problem, and what
>> you are trying to do here?
>>
>>> diff --git a/tools/mkimage.c b/tools/mkimage.c
>>> index 8af9d50..aa739b4 100644
>>> --- a/tools/mkimage.c
>>> +++ b/tools/mkimage.c
>>> @@ -311,21 +311,27 @@ NXTARG:           ;
>>>                 exit (retval);
>>>         }
>>>
>>> -       dfd = open(params.datafile, O_RDONLY | O_BINARY);
>>> -       if (dfd < 0) {
>>> -               fprintf(stderr, "%s: Can't open %s: %s\n",
>>> -                       params.cmdname, params.datafile, strerror(errno));
>>> -               exit(EXIT_FAILURE);
>>> -       }
>>> +       if (params.skipcpy ||
>>> +               !(params.type == IH_TYPE_MULTI ||
>>> +               params.type == IH_TYPE_SCRIPT)) {
>>> +               dfd = open(params.datafile, O_RDONLY | O_BINARY);
>>> +               if (dfd < 0) {
>>> +                       fprintf(stderr, "%s: Can't open %s: %s\n",
>>> +                               params.cmdname, params.datafile,
>>> +                               strerror(errno));
>>> +                       exit(EXIT_FAILURE);
>>> +               }
>>>
>>> -       if (fstat(dfd, &sbuf) < 0) {
>>> -               fprintf(stderr, "%s: Can't stat %s: %s\n",
>>> -                       params.cmdname, params.datafile, strerror(errno));
>>> -               exit(EXIT_FAILURE);
>>> -       }
>>> +               if (fstat(dfd, &sbuf) < 0) {
>>> +                       fprintf(stderr, "%s: Can't stat %s: %s\n",
>>> +                               params.cmdname, params.datafile,
>>> +                               strerror(errno));
>>> +                       exit(EXIT_FAILURE);
>>> +               }
>>>
>>> -       params.file_size = sbuf.st_size + tparams->header_size;
>>> -       close(dfd);
>>> +               params.file_size = sbuf.st_size + tparams->header_size;
>>> +               close(dfd);
>>> +       }
>>>
>>>         /*
>>>          * In case there an header with a variable
>>> --
>>> 2.6.2
>
> Meaning, you don't know what it does, or you won't accept the patch w/o it?
>
> In short,
>
> "mkimage -T multi -d file1:file2:file3"
>
> no longer works.
>
> It stats the file "file1:file2:file3" (and fails) before opening each
> file separately.
>

Yes, please put this explanation in version 2 of your patch.

Regards,
Simon