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libpci: drop support for pciutils < 2.2.0

This version was released in september 2005 and had a breaking api
change. Drop it so that we don't need to maintain the old codepath any
longer. Beside that, we have already a second codepath which is using
the new `pci_get_dev` variant exclusively.

Change-Id: If943db350b561a005d8292a53d9255223db3d571
Signed-off-by: Thomas Heijligen <thomas.heijligen@secunet.com>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/73293
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Anastasia Klimchuk <aklm@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
---
M Makefile
D Makefile.d/pci_old_get_dev_test.c
M include/platform/pci.h
M meson.build
M pcidev.c
5 files changed, 35 insertions(+), 40 deletions(-)

diff --git a/Makefile b/Makefile
index 6038faf..0e16942 100644
--- a/Makefile
+++ b/Makefile
@@ -251,7 +251,6 @@
 HAS_LIBUSB1         := $(call find_dependency, libusb-1.0)
 HAS_LIBPCI          := $(call find_dependency, libpci)
 
-HAS_PCI_OLD_GET_DEV := $(call c_compile_test, Makefile.d/pci_old_get_dev_test.c, $(CONFIG_LIBPCI_CFLAGS))
 HAS_FT232H          := $(call c_compile_test, Makefile.d/ft232h_test.c, $(CONFIG_LIBFTDI1_CFLAGS))
 HAS_UTSNAME         := $(call c_compile_test, Makefile.d/utsname_test.c)
 HAS_CLOCK_GETTIME   := $(call c_compile_test, Makefile.d/clock_gettime_test.c)
@@ -981,7 +980,6 @@
 	@if [ $(ENDIAN) = unknown ]; then echo Aborting.; exit 1; fi
 	@echo Dependency libpci found: $(HAS_LIBPCI) $(CONFIG_LIBPCI_VERSION)
 	@if [ $(HAS_LIBPCI) = yes ]; then			\
-		echo "  Checking for old \"pci_get_dev()\": $(HAS_PCI_OLD_GET_DEV)";\
 		echo "  CFLAGS: $(CONFIG_LIBPCI_CFLAGS)";	\
 		echo "  LDFLAGS: $(CONFIG_LIBPCI_LDFLAGS)";	\
 	fi
diff --git a/Makefile.d/pci_old_get_dev_test.c b/Makefile.d/pci_old_get_dev_test.c
deleted file mode 100644
index 3223651..0000000
--- a/Makefile.d/pci_old_get_dev_test.c
+++ /dev/null
@@ -1,17 +0,0 @@
-/* Avoid a failing test due to libpci header symbol shadowing breakage */
-#define index shadow_workaround_index
-#if !defined __NetBSD__
-#include <pci/pci.h>
-#else
-#include <pciutils/pci.h>
-#endif
-struct pci_access *pacc;
-struct pci_dev *dev = {0};
-int main(int argc, char **argv)
-{
-	(void) argc;
-	(void) argv;
-	pacc = pci_alloc();
-	dev = pci_get_dev(pacc, dev->bus, dev->dev, 1);
-	return 0;
-}
diff --git a/include/platform/pci.h b/include/platform/pci.h
index a0324f8..4ac108f 100644
--- a/include/platform/pci.h
+++ b/include/platform/pci.h
@@ -1,19 +1,23 @@
 /*
- * This is a wrapper for libpci.
- * ...
+ * This file is part of the flashrom project.
+ *
+ * Copyright (C) 2022 secunet Security Networks AG
+ * (written by Thomas Heijligen <thomas.heijligen@secunet.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
  */
 
-
 #ifndef __PLATFORM_PCI_H__
 #define __PLATFORM_PCI_H__
 
-/*
- * An old libpci version seems to use the variable name "index" which triggers
- * shadowing warnings on systems which have the index() function in a default
- * #include or as builtin.
- */
-#define index shadow_workaround_index
-
 /* Some NetBSDs are using an other include path for pci.h
  * e.g. NetBSD 9.0 on sparc64 pciutils-3.7.0nb2.
  * Other NetBSD platforms and versions uses the default path under pci/pci.h
@@ -24,6 +28,4 @@
 #include <pci/pci.h>
 #endif
 
-#undef index
-
 #endif /* __PLATFORM_PCI_H__ */
diff --git a/meson.build b/meson.build
index 2ecb5fa..5c38749 100644
--- a/meson.build
+++ b/meson.build
@@ -126,7 +126,8 @@
 group_internal = get_option('programmer').contains('group_internal')
 group_external = get_option('programmer').contains('group_external')
 
-libpci     = dependency('libpci', required : group_pci, static : (host_machine.system() == 'openbsd' ? true : false)) # On openbsd a static version of libpci is needed to get also -libz
+libpci     = dependency('libpci', required : group_pci, version : '>=2.2.0',
+  static : (host_machine.system() == 'openbsd' ? true : false)) # On openbsd a static version of libpci is needed to get also -libz
 libusb1    = dependency('libusb-1.0', required : group_usb)
 libftdi1   = dependency('libftdi1', required : group_ftdi)
 libjaylink = dependency('libjaylink', required : group_jlink)
diff --git a/pcidev.c b/pcidev.c
index 0b35944..696510e 100644
--- a/pcidev.c
+++ b/pcidev.c
@@ -192,15 +192,7 @@
 
 struct pci_dev *pcidev_getdevfn(struct pci_dev *dev, const int func)
 {
-#if !defined(OLD_PCI_GET_DEV)
 	struct pci_dev *const new = pci_get_dev(pacc, dev->domain, dev->bus, dev->dev, func);
-#else
-	/* pciutils/libpci before version 2.2 is too old to support
-	 * PCI domains. Such old machines usually don't have domains
-	 * besides domain 0, so this is not a problem.
-	 */
-	struct pci_dev *const new = pci_get_dev(pacc, dev->bus, dev->dev, func);
-#endif
 	if (new)
 		pci_fill_info(new, PCI_FILL_IDENT);
 	return new;

