lib/vsprintf.c: remove %Z support

Now that %z is standartised in C99 there is no reason to support %Z.
Unlike %L it doesn't even make format strings smaller.

Use BUILD_BUG_ON in a couple ATM drivers.

In case anyone didn't notice lib/vsprintf.o is about half of SLUB which
is in my opinion is quite an achievement.  Hopefully this patch inspires
someone else to trim vsprintf.c more.

Link: http://lkml.kernel.org/r/20170103230126.GA30170@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 3 insertions, 3 deletions

diff --git a/drivers/ide/ide-acpi.c b/drivers/ide/ide-acpi.c
index b6940992a6ff..968038482d2f 100644
--- a/drivers/ide/ide-acpi.c
+++ b/drivers/ide/ide-acpi.c
@@ -447,7 +447,7 @@ void ide_acpi_get_timing(ide_hwif_t *hwif)
         memcpy(&hwif->acpidata->gtm, out_obj->buffer.pointer,
                sizeof(struct GTM_buffer));
 
-        DEBPRINT("_GTM info: ptr: 0x%p, len: 0x%x, exp.len: 0x%Zx\n",
+        DEBPRINT("_GTM info: ptr: 0x%p, len: 0x%x, exp.len: 0x%zx\n",
                  out_obj->buffer.pointer, out_obj->buffer.length,
                  sizeof(struct GTM_buffer));
 
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 3c1b7974d66d..d8a552b47718 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -1136,7 +1136,7 @@ static ssize_t idetape_chrdev_read(struct file *file, char __user *buf,
         ssize_t ret = 0;
         int rc;
 
-        ide_debug_log(IDE_DBG_FUNC, "count %Zd", count);
+        ide_debug_log(IDE_DBG_FUNC, "count %zd", count);
 
         if (tape->chrdev_dir != IDETAPE_DIR_READ) {
                 if (test_bit(ilog2(IDE_AFLAG_DETECT_BS), &drive->atapi_flags))
@@ -1195,7 +1195,7 @@ static ssize_t idetape_chrdev_write(struct file *file, const char __user *buf,
         if (tape->write_prot)
                 return -EACCES;
 
-        ide_debug_log(IDE_DBG_FUNC, "count %Zd", count);
+        ide_debug_log(IDE_DBG_FUNC, "count %zd", count);
 
         /* Initialize write operation */
         rc = idetape_init_rw(drive, IDETAPE_DIR_WRITE);