Date: Tue, 4 Aug 2020 20:02:23 +0000 (UTC) From: Emmanuel Vadot <manu@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r363861 - head/sys/cam/mmc Message-ID: <202008042002.074K2NOu016073@repo.freebsd.org>
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Author: manu Date: Tue Aug 4 20:02:23 2020 New Revision: 363861 URL: https://svnweb.freebsd.org/changeset/base/363861 Log: mmcam: Use a static length sbuf buffer We cannot sleep during cam proto_announce and sbuf sleeps so use a static length buffer like nvme(4) Reviewed by: kibab Differential Revision: https://reviews.freebsd.org/D25949 Modified: head/sys/cam/mmc/mmc_all.h head/sys/cam/mmc/mmc_xpt.c Modified: head/sys/cam/mmc/mmc_all.h ============================================================================== --- head/sys/cam/mmc/mmc_all.h Tue Aug 4 20:00:21 2020 (r363860) +++ head/sys/cam/mmc/mmc_all.h Tue Aug 4 20:02:23 2020 (r363861) @@ -68,7 +68,6 @@ #include <cam/mmc/mmc.h> #include <dev/mmc/mmcreg.h> -void mmc_print_ident(struct mmc_params *ident_data); struct ccb_pathinq; struct cam_sim; void mmc_path_inq(struct ccb_pathinq *cpi, const char *hba, Modified: head/sys/cam/mmc/mmc_xpt.c ============================================================================== --- head/sys/cam/mmc/mmc_xpt.c Tue Aug 4 20:00:21 2020 (r363860) +++ head/sys/cam/mmc/mmc_xpt.c Tue Aug 4 20:02:23 2020 (r363861) @@ -411,13 +411,11 @@ mmccam_start_discovery(struct cam_sim *sim) { } /* This func is called per attached device :-( */ -void -mmc_print_ident(struct mmc_params *ident_data) +static void +mmc_print_ident(struct mmc_params *ident_data, struct sbuf *sb) { - struct sbuf *sb; bool space = false; - sb = sbuf_new_auto(); sbuf_printf(sb, "Relative addr: %08x\n", ident_data->card_rca); sbuf_printf(sb, "Card features: <"); if (ident_data->card_features & CARD_FEATURE_MMC) { @@ -463,13 +461,20 @@ mmc_print_ident(struct mmc_params *ident_data) static void mmc_proto_announce(struct cam_ed *device) { - mmc_print_ident(&device->mmc_ident_data); + struct sbuf sb; + char buffer[256]; + + sbuf_new(&sb, buffer, sizeof(buffer), SBUF_FIXEDLEN); + mmc_print_ident(&device->mmc_ident_data, &sb); + sbuf_finish(&sb); + sbuf_putbuf(&sb); } static void mmc_proto_denounce(struct cam_ed *device) { - mmc_print_ident(&device->mmc_ident_data); + + mmc_proto_announce(device); } static void
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