linux-kernel - suspect & tests

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Date:	Mon, 14 Dec 2009 11:22:57 -0800
From:	Joe Perches <joe@...ches.com>
To:	LKML <linux-kernel@...r.kernel.org>
Subject: suspect & tests

A grep for possibly misused & tests
	grep -rP --include=*.[ch] -n -e "[^\&]\&[\=]*\s*\!" *
shows some possible cases where && should
have been used instead:

arch/powerpc/platforms/pseries/lpar.c:309:	if ((rflags & _PAGE_NO_CACHE) & !(rflags & _PAGE_WRITETHRU))
arch/arm/mach-mxc91231/clock.c:265:	if (acs & !ads)
arch/arm/mach-s3c2440/mach-osiris-dvs.c:72:		if (old_dvs & !new_dvs ||
arch/arm/mach-s3c2440/mach-osiris-dvs.c:73:		    cur_dvs & !new_dvs) {
arch/arm/mach-davinci/board-da850-evm.c:183:	if (ui_card_detected & !HAS_MMC) {
drivers/scsi/libiscsi_tcp.c:423:	if (conn->datadgst_en &
	    !(conn->session->tt->caps & CAP_DIGEST_OFFLOAD))
drivers/media/video/omap24xxcam-dma.c:509:	if ((sglen < 0) || ((sglen > 0) & !sglist))
drivers/net/dm9000.c:615:		else if (dm->wake_state & !opts)
drivers/net/myri10ge/myri10ge.c:2845:					rdma_count += chop & !next_is_first;
fs/nilfs2/the_nilfs.c:516:	nilfs->ns_prot_seq = le64_to_cpu(sbp[valid[1] & !swp]->s_last_seq);
sound/soc/codecs/stac9766.c:233:		vra &= !0x04;

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