/*
 * POWER Data Stream Control Register (DSCR) fork test
 *
 * This testcase modifies the DSCR using mtspr, forks and then
 * verifies that the child process has the correct changed DSCR
 * value using mfspr.
 *
 * When using the privilege state SPR, the instructions such as
 * mfspr or mtspr are priviledged and the kernel emulates them
 * for us. Instructions using problem state SPR can be exuecuted
 * directly without any emulation if the HW supports them. Else
 * they also get emulated by the kernel.
 *
 * Copyright 2012, Anton Blanchard, IBM Corporation.
 * Copyright 2015, Anshuman Khandual, IBM Corporation.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published
 * by the Free Software Foundation.
 */
#include "dscr.h"

int dscr_inherit(void)
{
	unsigned long i, dscr = 0;
	pid_t pid;

	srand(getpid());
	set_dscr(dscr);

	for (i = 0; i < COUNT; i++) {
		unsigned long cur_dscr, cur_dscr_usr;

		dscr++;
		if (dscr > DSCR_MAX)
			dscr = 0;

		if (i % 2 == 0)
			set_dscr_usr(dscr);
		else
			set_dscr(dscr);

		pid = fork();
		if (pid == -1) {
			perror("fork() failed");
			exit(1);
		} else if (pid) {
			int status;

			if (waitpid(pid, &status, 0) == -1) {
				perror("waitpid() failed");
				exit(1);
			}

			if (!WIFEXITED(status)) {
				fprintf(stderr, "Child didn't exit cleanly\n");
				exit(1);
			}

			if (WEXITSTATUS(status) != 0) {
				fprintf(stderr, "Child didn't exit cleanly\n");
				return 1;
			}
		} else {
			cur_dscr = get_dscr();
			if (cur_dscr != dscr) {
				fprintf(stderr, "Kernel DSCR should be %ld "
					"but is %ld\n", dscr, cur_dscr);
				exit(1);
			}

			cur_dscr_usr = get_dscr_usr();
			if (cur_dscr_usr != dscr) {
				fprintf(stderr, "User DSCR should be %ld "
					"but is %ld\n", dscr, cur_dscr_usr);
				exit(1);
			}
			exit(0);
		}
	}
	return 0;
}

int main(int argc, char *argv[])
{
	return test_harness(dscr_inherit, "dscr_inherit_test");
}
ght' method='get' action='/cgit.cgi/linux/net-next.git/log/include'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/tree/?id=151a14db228181fb49abaf83e13f3be58ec102c4'>root</a>/<a href='/cgit.cgi/linux/net-next.git/tree/include?id=151a14db228181fb49abaf83e13f3be58ec102c4'>include</a></div><div class='content'><table summary='tree listing' class='list'>
<tr class='nohover'><th class='left'>Mode</th><th class='left'>Name</th><th class='right'>Size</th><th/></tr>
914bd5e73'>ipv6</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net/ipv6/calipso.c?id=628f07d33c1f2e7bf31e0a4a988bb07914bd5e73'>calipso.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='628f07d33c1f2e7bf31e0a4a988bb07914bd5e73'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Eyal Itkin &lt;eyal.itkin@gmail.com&gt;</td><td class='right'>2017-02-07 16:43:05 +0300</td></tr>
<tr><th>committer</th><td>Doug Ledford &lt;dledford@redhat.com&gt;</td><td class='right'>2017-02-08 12:28:30 -0500</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/ipv6/calipso.c?id=628f07d33c1f2e7bf31e0a4a988bb07914bd5e73'>628f07d33c1f2e7bf31e0a4a988bb07914bd5e73</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/ipv6/calipso.c?id=628f07d33c1f2e7bf31e0a4a988bb07914bd5e73'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=628f07d33c1f2e7bf31e0a4a988bb07914bd5e73'>c228c66498f9a4562093fbbf80a41bcede0c06f2</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/ipv6/calipso.c?id=628f07d33c1f2e7bf31e0a4a988bb07914bd5e73'>net/ipv6/calipso.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/ipv6/calipso.c?id=b4cfe3971f6eab542dd7ecc398bfa1aeec889934'>b4cfe3971f6eab542dd7ecc398bfa1aeec889934</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/ipv6/calipso.c?id=628f07d33c1f2e7bf31e0a4a988bb07914bd5e73&amp;id2=b4cfe3971f6eab542dd7ecc398bfa1aeec889934'>diff</a>)</td></tr></table>
<div class='commit-subject'>IB/rxe: Fix resid update</div><div class='commit-msg'>Update the response's resid field when larger than MTU, instead of only
updating the local resid variable.

Fixes: 8700e3e7c485 ("Soft RoCE driver")
Signed-off-by: Eyal Itkin &lt;eyal.itkin@gmail.com&gt;
Signed-off-by: Dan Carpenter &lt;dan.carpenter@oracle.com&gt;
Reviewed-by: Leon Romanovsky &lt;leonro@mellanox.com&gt;
Signed-off-by: Doug Ledford &lt;dledford@redhat.com&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=628f07d33c1f2e7bf31e0a4a988bb07914bd5e73'>Diffstat</a> (limited to 'net/ipv6/calipso.c')</div><table summary='diffstat' class='diffstat'>