Date: Thu, 14 Jul 2016 00:26:57 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r302791 - stable/10/sys/dev/ahci Message-ID: <201607140026.u6E0QvgY027297@repo.freebsd.org>
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Author: mav Date: Thu Jul 14 00:26:57 2016 New Revision: 302791 URL: https://svnweb.freebsd.org/changeset/base/302791 Log: MFC r302402: Fix ahci(4) driver attach to controller with 32 ports. Incorrect sign expansion in variables that supposed to be a bit fields caused infinite loop. Fixing this allows system properly detect maximal possible 32 devices configured on AHCI HBA of BHyVe. That case did not happen in a wild before due to lack of hardware AHCI HBAs with 32 ports. Modified: stable/10/sys/dev/ahci/ahci.c stable/10/sys/dev/ahci/ahci.h Directory Properties: stable/10/ (props changed) Modified: stable/10/sys/dev/ahci/ahci.c ============================================================================== --- stable/10/sys/dev/ahci/ahci.c Wed Jul 13 23:49:45 2016 (r302790) +++ stable/10/sys/dev/ahci/ahci.c Thu Jul 14 00:26:57 2016 (r302791) @@ -154,8 +154,8 @@ int ahci_attach(device_t dev) { struct ahci_controller *ctlr = device_get_softc(dev); - int error, i, u, speed, unit; - u_int32_t version; + int error, i, speed, unit; + uint32_t u, version; device_t child; ctlr->dev = dev; Modified: stable/10/sys/dev/ahci/ahci.h ============================================================================== --- stable/10/sys/dev/ahci/ahci.h Wed Jul 13 23:49:45 2016 (r302790) +++ stable/10/sys/dev/ahci/ahci.h Thu Jul 14 00:26:57 2016 (r302791) @@ -472,7 +472,7 @@ struct ahci_enclosure { uint8_t status[AHCI_MAX_PORTS][4]; /* ArrayDev statuses */ int quirks; int channels; - int ichannels; + uint32_t ichannels; }; /* structure describing a AHCI controller */ @@ -503,7 +503,7 @@ struct ahci_controller { int quirks; int numirqs; int channels; - int ichannels; + uint32_t ichannels; int ccc; /* CCC timeout */ int cccv; /* CCC vector */ int direct; /* Direct command completion */
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