kernel.h: drop hex.h and update all hex.h users

Remove <linux/hex.h> from <linux/kernel.h> and update all users/callers of
hex.h interfaces to directly #include <linux/hex.h> as part of the process
of putting kernel.h on a diet.

Removing hex.h from kernel.h means that 36K C source files don't have to
pay the price of parsing hex.h for the roughly 120 C source files that
need it.

This change has been build-tested with allmodconfig on most ARCHes.  Also,
all users/callers of <linux/hex.h> in the entire source tree have been
updated if needed (if not already #included).

Link: https://lkml.kernel.org/r/20251215005206.2362276-1-rdunlap@infradead.org
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Yury Norov (NVIDIA) <yury.norov@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

arch/mips/kernel/setup.c

@@ -13,6 +13,7 @@
 #include <linux/init.h>
 #include <linux/cpu.h>
 #include <linux/delay.h>
+#include <linux/hex.h>
 #include <linux/ioport.h>
 #include <linux/export.h>
 #include <linux/memblock.h>

arch/mips/rb532/devices.c

@@ -7,6 +7,7 @@
  */
 #include <linux/kernel.h>
 #include <linux/export.h>
+#include <linux/hex.h>
 #include <linux/init.h>
 #include <linux/ctype.h>
 #include <linux/string.h>

arch/powerpc/kernel/btext.c

@@ -6,6 +6,7 @@
  */
 #include <linux/kernel.h>
 #include <linux/string.h>
+#include <linux/hex.h>
 #include <linux/init.h>
 #include <linux/export.h>
 #include <linux/font.h>

arch/s390/kernel/alternative.c

@@ -4,6 +4,7 @@
 #define pr_fmt(fmt)	"alt: " fmt
 #endif
 
+#include <linux/hex.h>
 #include <linux/uaccess.h>
 #include <linux/printk.h>
 #include <asm/nospec-branch.h>

arch/s390/kernel/stackprotector.c

@@ -5,6 +5,7 @@
 #endif
 
 #include <linux/export.h>
+#include <linux/hex.h>
 #include <linux/uaccess.h>
 #include <linux/printk.h>
 #include <asm/abs_lowcore.h>

arch/um/drivers/vector_kern.c

@@ -13,6 +13,7 @@
 #include <linux/memblock.h>
 #include <linux/etherdevice.h>
 #include <linux/ethtool.h>
+#include <linux/hex.h>
 #include <linux/inetdevice.h>
 #include <linux/init.h>
 #include <linux/list.h>

arch/xtensa/platforms/iss/network.c

@@ -13,6 +13,7 @@
 
 #define pr_fmt(fmt) "%s: " fmt, __func__
 
+#include <linux/hex.h>
 #include <linux/list.h>
 #include <linux/irq.h>
 #include <linux/spinlock.h>

certs/blacklist.c

@@ -13,6 +13,7 @@
 #include <linux/sched.h>
 #include <linux/ctype.h>
 #include <linux/err.h>
+#include <linux/hex.h>
 #include <linux/seq_file.h>
 #include <linux/uidgid.h>
 #include <keys/asymmetric-type.h>

crypto/asymmetric_keys/asymmetric_type.c

@@ -9,6 +9,7 @@
 #include <keys/asymmetric-subtype.h>
 #include <keys/asymmetric-parser.h>
 #include <crypto/public_key.h>
+#include <linux/hex.h>
 #include <linux/seq_file.h>
 #include <linux/module.h>
 #include <linux/overflow.h>

crypto/asymmetric_keys/x509_public_key.c

@@ -10,6 +10,7 @@
 #include <keys/asymmetric-parser.h>
 #include <keys/asymmetric-subtype.h>
 #include <keys/system_keyring.h>
+#include <linux/hex.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>

crypto/krb5/selftest.c

@@ -7,6 +7,7 @@
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
+#include <linux/hex.h>
 #include <linux/slab.h>
 #include <crypto/skcipher.h>
 #include <crypto/hash.h>

drivers/atm/nicstar.c

@@ -43,6 +43,7 @@
 #include <linux/types.h>
 #include <linux/string.h>
 #include <linux/delay.h>
+#include <linux/hex.h>
 #include <linux/init.h>
 #include <linux/sched.h>
 #include <linux/timer.h>

drivers/auxdisplay/hd44780_common.c

@@ -1,4 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
+#include <linux/hex.h>
 #include <linux/module.h>
 #include <linux/sched.h>
 #include <linux/slab.h>

drivers/auxdisplay/lcd2s.c

@@ -11,6 +11,7 @@
  *  Author: Lars Pöschel <poeschel@lemonage.de>
  *  All rights reserved.
  */
+#include <linux/hex.h>
 #include <linux/kernel.h>
 #include <linux/mod_devicetable.h>
 #include <linux/module.h>

drivers/bus/moxtet.c

@@ -8,6 +8,7 @@
 #include <dt-bindings/bus/moxtet.h>
 #include <linux/bitops.h>
 #include <linux/debugfs.h>
+#include <linux/hex.h>
 #include <linux/interrupt.h>
 #include <linux/module.h>
 #include <linux/moxtet.h>

drivers/char/tpm/tpm.h

@@ -20,6 +20,7 @@
 
 #include <linux/module.h>
 #include <linux/delay.h>
+#include <linux/hex.h>
 #include <linux/mutex.h>
 #include <linux/sched.h>
 #include <linux/platform_device.h>

drivers/comedi/drivers/jr3_pci.c

@@ -32,6 +32,7 @@
 #include <linux/module.h>
 #include <linux/delay.h>
 #include <linux/ctype.h>
+#include <linux/hex.h>
 #include <linux/jiffies.h>
 #include <linux/slab.h>
 #include <linux/timer.h>

drivers/firmware/broadcom/bcm47xx_sprom.c

@@ -30,6 +30,7 @@
 #include <linux/bcm47xx_sprom.h>
 #include <linux/bcma/bcma.h>
 #include <linux/etherdevice.h>
+#include <linux/hex.h>
 #include <linux/if_ether.h>
 #include <linux/ssb/ssb.h>
 

drivers/gpio/gpio-macsmc.c

@@ -10,6 +10,7 @@
 #include <linux/bitmap.h>
 #include <linux/device.h>
 #include <linux/gpio/driver.h>
+#include <linux/hex.h>
 #include <linux/mfd/core.h>
 #include <linux/mfd/macsmc.h>
 

drivers/hid/hid-picolcd_debugfs.c

@@ -11,6 +11,7 @@
 #include <linux/hid-debug.h>
 
 #include <linux/fb.h>
+#include <linux/hex.h>
 #include <linux/seq_file.h>
 #include <linux/debugfs.h>