The patch titled Subject: vsprintf: correctly handle width when '#' flag used in %#p format has been removed from the -mm tree. Its filename was vsprintf-correctly-handle-width-when-flag-used-in-%p-format.patch This patch was dropped because it was merged into mainline or a subsystem tree The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ From: Grant Likely <grant.likely@xxxxxxxxxxxx> Subject: vsprintf: correctly handle width when '#' flag used in %#p format The '%p' output of the kernel's vsprintf() uses spec.field_width to determine how many digits to output based on 2 * sizeof(void*) so that all digits of a pointer are shown. ie. a pointer will be output as "001A2B3C" instead of "1A2B3C". However, if the '#' flag is used in the format (%#p), then the code doesn't take into account the width of the '0x' prefix and will end up outputing "0x1A2B3C" instead of "0x001A2B3C". This patch reworks the "pointer()" format hook to include 2 characters for the '0x' prefix if the '#' flag is included. [akpm@xxxxxxxxxxxxxxxxxxxx: checkpatch fixes] Signed-off-by: Grant Likely <grant.likely@xxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- lib/vsprintf.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff -puN lib/vsprintf.c~vsprintf-correctly-handle-width-when-flag-used-in-%p-format lib/vsprintf.c --- a/lib/vsprintf.c~vsprintf-correctly-handle-width-when-flag-used-in-%p-format +++ a/lib/vsprintf.c @@ -870,13 +870,15 @@ static noinline_for_stack char *pointer(const char *fmt, char *buf, char *end, void *ptr, struct printf_spec spec) { + int default_width = 2 * sizeof(void *) + (spec.flags & SPECIAL ? 2 : 0); + if (!ptr && *fmt != 'K') { /* * Print (null) with the same width as a pointer so it makes * tabular output look nice. */ if (spec.field_width == -1) - spec.field_width = 2 * sizeof(void *); + spec.field_width = default_width; return string(buf, end, "(null)", spec); } @@ -931,7 +933,7 @@ char *pointer(const char *fmt, char *buf */ if (in_irq() || in_serving_softirq() || in_nmi()) { if (spec.field_width == -1) - spec.field_width = 2 * sizeof(void *); + spec.field_width = default_width; return string(buf, end, "pK-error", spec); } if (!((kptr_restrict == 0) || @@ -948,7 +950,7 @@ char *pointer(const char *fmt, char *buf } spec.flags |= SMALL; if (spec.field_width == -1) { - spec.field_width = 2 * sizeof(void *); + spec.field_width = default_width; spec.flags |= ZEROPAD; } spec.base = 16; _ Patches currently in -mm which might be from grant.likely@xxxxxxxxxxxx are origin.patch linux-next.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html