change wifi driver to cypress

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2024-01-05 071106ecf68c401173c58808b1cf5f68cc50d390

 kernel/kernel/gen_kheaders.sh
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@@ -1,4 +1,4 @@
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-#!/bin/bash
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+#!/bin/sh
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 # SPDX-License-Identifier: GPL-2.0
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 # This script generates an archive consisting of kernel headers
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@@ -21,30 +21,38 @@
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 # Uncomment it for debugging.
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 # if [ ! -f /tmp/iter ]; then iter=1; echo 1 > /tmp/iter;
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 # else iter=$(($(cat /tmp/iter) + 1)); echo $iter > /tmp/iter; fi
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-# find $src_file_list -name "*.h" | xargs ls -l > /tmp/src-ls-$iter
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-# find $obj_file_list -name "*.h" | xargs ls -l > /tmp/obj-ls-$iter
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+# find $all_dirs -name "*.h" | xargs ls -l > /tmp/ls-$iter
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+
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+all_dirs=
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+if [ "$building_out_of_srctree" ]; then
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+	for d in $dir_list; do
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+		all_dirs="$all_dirs $srctree/$d"
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+	done
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+fi
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+all_dirs="$all_dirs $dir_list"
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 # include/generated/compile.h is ignored because it is touched even when none
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-# of the source files changed. This causes pointless regeneration, so let us
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-# ignore them for md5 calculation.
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-pushd $srctree > /dev/null
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-src_files_md5="$(find $dir_list -name "*.h"			   |
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-		grep -v "include/generated/compile.h"		   |
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-		grep -v "include/generated/autoconf.h"		   |
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+# of the source files changed.
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+#
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+# When Kconfig regenerates include/generated/autoconf.h, its timestamp is
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+# updated, but the contents might be still the same. When any CONFIG option is
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+# changed, Kconfig touches the corresponding timestamp file include/config/*.h.
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+# Hence, the md5sum detects the configuration change anyway. We do not need to
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+# check include/generated/autoconf.h explicitly.
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+#
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+# Ignore them for md5 calculation to avoid pointless regeneration.
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+headers_md5="$(find $all_dirs -name "*.h"			|
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+		grep -v "include/generated/compile.h"	|
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+		grep -v "include/generated/autoconf.h"	|
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 		xargs ls -l | md5sum | cut -d ' ' -f1)"
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-popd > /dev/null
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-obj_files_md5="$(find $dir_list -name "*.h"			   |
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-		grep -v "include/generated/compile.h"		   |
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-		grep -v "include/generated/autoconf.h"		   |
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-		xargs ls -l | md5sum | cut -d ' ' -f1)"
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+
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 # Any changes to this script will also cause a rebuild of the archive.
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 this_file_md5="$(ls -l $sfile | md5sum | cut -d ' ' -f1)"
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 if [ -f $tarfile ]; then tarfile_md5="$(md5sum $tarfile | cut -d ' ' -f1)"; fi
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 if [ -f kernel/kheaders.md5 ] &&
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-	[ "$(cat kernel/kheaders.md5|head -1)" == "$src_files_md5" ] &&
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-	[ "$(cat kernel/kheaders.md5|head -2|tail -1)" == "$obj_files_md5" ] &&
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-	[ "$(cat kernel/kheaders.md5|head -3|tail -1)" == "$this_file_md5" ] &&
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-	[ "$(cat kernel/kheaders.md5|tail -1)" == "$tarfile_md5" ]; then
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+	[ "$(head -n 1 kernel/kheaders.md5)" = "$headers_md5" ] &&
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+	[ "$(head -n 2 kernel/kheaders.md5 | tail -n 1)" = "$this_file_md5" ] &&
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+	[ "$(tail -n 1 kernel/kheaders.md5)" = "$tarfile_md5" ]; then
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 		exit
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 fi
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@@ -55,14 +63,17 @@
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 rm -rf $cpio_dir
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 mkdir $cpio_dir
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-pushd $srctree > /dev/null
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-for f in $dir_list;
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-	do find "$f" -name "*.h";
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-done | cpio --quiet -pd $cpio_dir
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-popd > /dev/null
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+if [ "$building_out_of_srctree" ]; then
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+	(
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+		cd $srctree
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+		for f in $dir_list
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+			do find "$f" -name "*.h";
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+		done | cpio --quiet -pd $cpio_dir
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+	)
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+fi
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-# The second CPIO can complain if files already exist which can
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-# happen with out of tree builds. Just silence CPIO for now.
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+# The second CPIO can complain if files already exist which can happen with out
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+# of tree builds having stale headers in srctree. Just silence CPIO for now.
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 for f in $dir_list;
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 	do find "$f" -name "*.h";
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 done | cpio --quiet -pd $cpio_dir >/dev/null 2>&1
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@@ -71,10 +82,15 @@
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 find $cpio_dir -type f -print0 |
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 	xargs -0 -P8 -n1 perl -pi -e 'BEGIN {undef $/;}; s/\/\*((?!SPDX).)*?\*\///smg;'
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-tar -Jcf $tarfile -C $cpio_dir/ . > /dev/null
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+# Create archive and try to normalize metadata for reproducibility.
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+# For compatibility with older versions of tar, files are fed to tar
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+# pre-sorted, as --sort=name might not be available.
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+find $cpio_dir -printf "./%P\n" | LC_ALL=C sort | \
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+    tar "${KBUILD_BUILD_TIMESTAMP:+--mtime=$KBUILD_BUILD_TIMESTAMP}" \
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+    --owner=0 --group=0 --numeric-owner --no-recursion \
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+    -I $XZ -cf $tarfile -C $cpio_dir/ -T - > /dev/null
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-echo "$src_files_md5" >  kernel/kheaders.md5
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-echo "$obj_files_md5" >> kernel/kheaders.md5
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+echo $headers_md5 > kernel/kheaders.md5
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 echo "$this_file_md5" >> kernel/kheaders.md5
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 echo "$(md5sum $tarfile | cut -d ' ' -f1)" >> kernel/kheaders.md5
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