Merge tag 'xtensa-20240117' of https://github.com/jcmvbkbc/linux-xtensa

Pull Xtensa updates from Max Filippov:

 - small cleanups in the xtensa PCI and asmmacro code

 - fix kernel build with FDPIC toolchain

* tag 'xtensa-20240117' of https://github.com/jcmvbkbc/linux-xtensa:
  xtensa: don't produce FDPIC output with fdpic toolchain
  xtensa: Use PCI_HEADER_TYPE_MFD instead of literal
  xtensa: replace <asm-generic/export.h> with <linux/export.h>
  xtensa: fix variants path in the Kconfig help

Author: torvalds

arch/xtensa/Kconfig

@@ -144,7 +144,7 @@ config XTENSA_VARIANT_CUSTOM_NAME
 	depends on XTENSA_VARIANT_CUSTOM
 	help
 	  Provide the name of a custom Xtensa processor variant.
-	  This CORENAME selects arch/xtensa/variant/CORENAME.
+	  This CORENAME selects arch/xtensa/variants/CORENAME.
 	  Don't forget you have to select MMU if you have one.
 
 config XTENSA_VARIANT_NAME

arch/xtensa/Makefile

@@ -35,15 +35,19 @@ KBUILD_CFLAGS += -ffreestanding -D__linux__
 KBUILD_CFLAGS += -pipe -mlongcalls -mtext-section-literals
 KBUILD_CFLAGS += $(call cc-option,-mforce-no-pic,)
 KBUILD_CFLAGS += $(call cc-option,-mno-serialize-volatile,)
+KBUILD_CFLAGS += $(call cc-option,-mno-fdpic,)
 ifneq ($(CONFIG_KERNEL_ABI_CALL0),)
 KBUILD_CFLAGS += -mabi=call0
 KBUILD_AFLAGS += -mabi=call0
 endif
 
 KBUILD_AFLAGS += -mlongcalls -mtext-section-literals
+KBUILD_AFLAGS += $(call cc-option,-mno-fdpic,)
+
+KBUILD_LDFLAGS += -m elf32xtensa
 
 ifneq ($(CONFIG_LD_NO_RELAX),)
-KBUILD_LDFLAGS := --no-relax
+KBUILD_LDFLAGS += --no-relax
 endif
 
 CHECKFLAGS += -D$(if $(CONFIG_CPU_BIG_ENDIAN),__XTENSA_EB__,__XTENSA_EL__)

arch/xtensa/include/asm/asmmacro.h

@@ -11,7 +11,7 @@
 #ifndef _XTENSA_ASMMACRO_H
 #define _XTENSA_ASMMACRO_H
 
-#include <asm-generic/export.h>
+#include <linux/export.h>
 #include <asm/core.h>
 
 /*

arch/xtensa/lib/pci-auto.c

@@ -11,6 +11,7 @@
  * Based on work from Matt Porter <mporter@mvista.com>
  */
 
+#include <linux/bitfield.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/pci.h>
@@ -222,10 +223,11 @@ pciauto_postscan_setup_bridge(struct pci_dev *dev, int current_bus, int sub_bus,
 
 int __init pciauto_bus_scan(struct pci_controller *pci_ctrl, int current_bus)
 {
-	int sub_bus, pci_devfn, pci_class, cmdstat, found_multi=0;
+	int sub_bus, pci_devfn, pci_class, cmdstat;
 	unsigned short vid;
 	unsigned char header_type;
 	struct pci_dev *dev = &pciauto_dev;
+	bool found_multi = false;
 
 	pciauto_dev.bus = &pciauto_bus;
 	pciauto_dev.sysdata = pci_ctrl;
@@ -261,11 +263,11 @@ int __init pciauto_bus_scan(struct pci_controller *pci_ctrl, int current_bus)
 			continue;
 
 		if (!PCI_FUNC(pci_devfn))
-			found_multi = header_type & 0x80;
+			found_multi = FIELD_GET(PCI_HEADER_TYPE_MFD, header_type);
 		pci_read_config_word(dev, PCI_VENDOR_ID, &vid);
 
 		if (vid == 0xffff || vid == 0x0000) {
-			found_multi = 0;
+			found_multi = false;
 			continue;
 		}