[PATCH] net: Fix the displayed value of bytes transferred

[Tom Rini]

On Fri, Aug 11, 2023 at 10:49:23AM +0530, Siddharth Vadapalli wrote:
> Ravi,
> 
> On 10/08/23 17:00, Ravi Gunasekaran wrote:
> > Siddharth,
> > 
> > On 8/10/23 2:45 PM, Siddharth Vadapalli wrote:
> >> In the case of NETLOOP_SUCCESS, the decimal value of the u32 variable
> >> "net_boot_file_size" is printed using "%d", resulting in negative values
> >> being reported for large file sizes. Fix this by using "%lu" to print
> >> the decimal value corresponding to the bytes transferred.
> >>
> >> Fixes: 1411157d8578 ("net: cosmetic: Fixup var names related to boot file")
> >> Signed-off-by: Siddharth Vadapalli <s-vadapalli at ti.com>
> >> ---
> >>  net/net.c | 2 +-
> >>  1 file changed, 1 insertion(+), 1 deletion(-)
> >>
> >> diff --git a/net/net.c b/net/net.c
> >> index 43abbac7c3..7aaeafc247 100644
> >> --- a/net/net.c
> >> +++ b/net/net.c
> >> @@ -716,7 +716,7 @@ restart:
> >>  		case NETLOOP_SUCCESS:
> >>  			net_cleanup_loop();
> >>  			if (net_boot_file_size > 0) {
> >> -				printf("Bytes transferred = %d (%x hex)\n",
> >> +				printf("Bytes transferred = %lu (%x hex)\n",
> > 
> > 'net_boot_file_size' is of type u32. Using "%lu" will throw a warning for this.
> > As per [0], format specifier for 'unsigned int' is "%d, %x'.
> > 
> > You could perhaps change the data type of 'net_boot_file_size' to 'ulong' as well.
> 
> The issue here isn't the size of the variable itself, but the format specifier.
> For large file sizes, the hex value printed for the variable is correct, but the
> decimal value is negative.
> 
> > 
> > [0] - https://u-boot.readthedocs.io/en/latest/develop/printf.html

Uh, maybe I'm just missing something, but I think there's two things.
First, this should be "%u" for "unsigned decimal".  Second,
doc/develop/printf.rst needs to be fixed since:
int                 %d, %x
unsigned int        %d, %x

Should is wrong and should say %u, %x, because, well, that's what would
be correct, yes?

-- 
Tom
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