[27/30] brcmfmac: Replace function index with function pointer

Message ID	20170822112550.60311-28-ian@mnementh.co.uk (mailing list archive)
State	Changes Requested
Delegated to:	Kalle Valo
Headers	show Return-Path: <linux-wireless-owner@kernel.org> From: Ian Molton <ian@mnementh.co.uk> To: linux-wireless@vger.kernel.org Cc: arend.vanspriel@broadcom.com Subject: [PATCH 27/30] brcmfmac: Replace function index with function pointer Date: Tue, 22 Aug 2017 12:25:47 +0100 Message-Id: <20170822112550.60311-28-ian@mnementh.co.uk> In-Reply-To: <20170822112550.60311-1-ian@mnementh.co.uk> References: <20170822112550.60311-1-ian@mnementh.co.uk> X-Spam_score: -2.9 X-Spam_score_int: -28 X-Spam_bar: -- X-Spam_report: Spam detection software, running on the system "mnementh.co.uk", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: In preparation for removing the function array, remove all code that refers to function by index and replace with pointers to the function itself. Signed-off-by: Ian Molton <ian@mnementh.co.uk> Reviewed-by: Arend van Spriel <arend.vanspriel@broadcom.com> [...] Content analysis details: (-2.9 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 URIBL_BLOCKED ADMINISTRATOR NOTICE: The query to URIBL was blocked. See http://wiki.apache.org/spamassassin/DnsBlocklists#dnsbl-block for more information. [URIs: mnementh.co.uk] -1.0 ALL_TRUSTED Passed through trusted hosts only via SMTP 0.0 TVD_RCVD_IP Message was received from an IP address -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c index 69a6699126fd..0cd081d732f9 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c @@ -289,8 +289,9 @@ void brcmf_sdiod_writel(struct brcmf_sdio_dev *sdiodev, u32 addr, *ret = retval; } -static int brcmf_sdiod_buff_read(struct brcmf_sdio_dev *sdiodev, uint fn, - u32 addr, struct sk_buff *pkt) +static int brcmf_sdiod_buff_read(struct brcmf_sdio_dev *sdiodev, + struct sdio_func *func, u32 addr, + struct sk_buff *pkt) { unsigned int req_sz; int err; @@ -299,13 +300,17 @@ static int brcmf_sdiod_buff_read(struct brcmf_sdio_dev *sdiodev, uint fn, req_sz = pkt->len + 3; req_sz &= (uint)~3; - if (fn == 1) - err = sdio_memcpy_fromio(sdiodev->func[fn], - ((u8 *)(pkt->data)), addr, req_sz); - else - /* function 2 read is FIFO operation */ - err = sdio_readsb(sdiodev->func[fn], - ((u8 *)(pkt->data)), addr, req_sz); + switch (func->num) { + case 1: + err = sdio_memcpy_fromio(func, ((u8 *)(pkt->data)), addr, + req_sz); + break; + case 2: + err = sdio_readsb(func, ((u8 *)(pkt->data)), addr, req_sz); + break; + default: + BUG(); + }; if (err == -ENOMEDIUM) brcmf_sdiod_change_state(sdiodev, BRCMF_SDIOD_NOMEDIUM); @@ -313,8 +318,9 @@ static int brcmf_sdiod_buff_read(struct brcmf_sdio_dev *sdiodev, uint fn, return err; } -static int brcmf_sdiod_buff_write(struct brcmf_sdio_dev *sdiodev, uint fn, - u32 addr, struct sk_buff *pkt) +static int brcmf_sdiod_buff_write(struct brcmf_sdio_dev *sdiodev, + struct sdio_func *func, u32 addr, + struct sk_buff *pkt) { unsigned int req_sz; int err; @@ -323,8 +329,7 @@ static int brcmf_sdiod_buff_write(struct brcmf_sdio_dev *sdiodev, uint fn, req_sz = pkt->len + 3; req_sz &= (uint)~3; - err = sdio_memcpy_toio(sdiodev->func[fn], addr, - ((u8 *)(pkt->data)), req_sz); + err = sdio_memcpy_toio(func, addr, ((u8 *)(pkt->data)), req_sz); if (err == -ENOMEDIUM) brcmf_sdiod_change_state(sdiodev, BRCMF_SDIOD_NOMEDIUM); @@ -335,7 +340,7 @@ static int brcmf_sdiod_buff_write(struct brcmf_sdio_dev *sdiodev, uint fn, /** * brcmf_sdiod_sglist_rw - SDIO interface function for block data access * @sdiodev: brcmfmac sdio device - * @fn: SDIO function number + * @func: SDIO function * @write: direction flag * @addr: dongle memory address as source/destination * @pkt: skb pointer @@ -344,7 +349,8 @@ static int brcmf_sdiod_buff_write(struct brcmf_sdio_dev *sdiodev, uint fn, * stack for block data access. It assumes that the skb passed down by the * caller has already been padded and aligned. */ -static int brcmf_sdiod_sglist_rw(struct brcmf_sdio_dev *sdiodev, uint fn, +static int brcmf_sdiod_sglist_rw(struct brcmf_sdio_dev *sdiodev, + struct sdio_func *func, bool write, u32 addr, struct sk_buff_head *pktlist) { @@ -370,7 +376,7 @@ static int brcmf_sdiod_sglist_rw(struct brcmf_sdio_dev *sdiodev, uint fn, req_sz = 0; skb_queue_walk(pktlist, pkt_next) req_sz += pkt_next->len; - req_sz = ALIGN(req_sz, sdiodev->func[fn]->cur_blksize); + req_sz = ALIGN(req_sz, func->cur_blksize); while (req_sz > PAGE_SIZE) { pkt_next = brcmu_pkt_buf_get_skb(PAGE_SIZE); if (pkt_next == NULL) { @@ -389,7 +395,7 @@ static int brcmf_sdiod_sglist_rw(struct brcmf_sdio_dev *sdiodev, uint fn, target_list = &local_list; } - func_blk_sz = sdiodev->func[fn]->cur_blksize; + func_blk_sz = func->cur_blksize; max_req_sz = sdiodev->max_request_size; max_seg_cnt = min_t(unsigned short, sdiodev->max_segment_count, target_list->qlen); @@ -406,10 +412,10 @@ static int brcmf_sdiod_sglist_rw(struct brcmf_sdio_dev *sdiodev, uint fn, mmc_dat.flags = write ? MMC_DATA_WRITE : MMC_DATA_READ; mmc_cmd.opcode = SD_IO_RW_EXTENDED; mmc_cmd.arg = write ? 1<<31 : 0; /* write flag */ - mmc_cmd.arg |= (fn & 0x7) << 28; /* SDIO func num */ - mmc_cmd.arg |= 1<<27; /* block mode */ + mmc_cmd.arg |= (func->num & 0x7) << 28; /* SDIO func num */ + mmc_cmd.arg |= 1 << 27; /* block mode */ /* for function 1 the addr will be incremented */ - mmc_cmd.arg |= (fn == 1) ? 1<<26 : 0; + mmc_cmd.arg |= (func->num == 1) ? 1 << 26 : 0; mmc_cmd.flags = MMC_RSP_SPI_R5 | MMC_RSP_R5 | MMC_CMD_ADTC; mmc_req.cmd = &mmc_cmd; mmc_req.data = &mmc_dat; @@ -455,11 +461,11 @@ static int brcmf_sdiod_sglist_rw(struct brcmf_sdio_dev *sdiodev, uint fn, mmc_cmd.arg |= (addr & 0x1FFFF) << 9; /* address */ mmc_cmd.arg |= mmc_dat.blocks & 0x1FF; /* block count */ /* incrementing addr for function 1 */ - if (fn == 1) + if (func->num == 1) addr += req_sz; - mmc_set_data_timeout(&mmc_dat, sdiodev->func[fn]->card); - mmc_wait_for_req(sdiodev->func[fn]->card->host, &mmc_req); + mmc_set_data_timeout(&mmc_dat, func->card); + mmc_wait_for_req(func->card->host, &mmc_req); ret = mmc_cmd.error ? mmc_cmd.error : mmc_dat.error; if (ret == -ENOMEDIUM) { @@ -539,7 +545,7 @@ int brcmf_sdiod_recv_pkt(struct brcmf_sdio_dev *sdiodev, struct sk_buff *pkt) addr &= SBSDIO_SB_OFT_ADDR_MASK; addr |= SBSDIO_SB_ACCESS_2_4B_FLAG; - err = brcmf_sdiod_buff_read(sdiodev, SDIO_FUNC_2, addr, pkt); + err = brcmf_sdiod_buff_read(sdiodev, sdiodev->func[2], addr, pkt); done: return err; @@ -564,13 +570,13 @@ int brcmf_sdiod_recv_chain(struct brcmf_sdio_dev *sdiodev, addr |= SBSDIO_SB_ACCESS_2_4B_FLAG; if (pktq->qlen == 1) - err = brcmf_sdiod_buff_read(sdiodev, SDIO_FUNC_2, addr, + err = brcmf_sdiod_buff_read(sdiodev, sdiodev->func[2], addr, pktq->next); else if (!sdiodev->sg_support) { glom_skb = brcmu_pkt_buf_get_skb(totlen); if (!glom_skb) return -ENOMEM; - err = brcmf_sdiod_buff_read(sdiodev, SDIO_FUNC_2, addr, + err = brcmf_sdiod_buff_read(sdiodev, sdiodev->func[2], addr, glom_skb); if (err) goto done; @@ -580,8 +586,8 @@ int brcmf_sdiod_recv_chain(struct brcmf_sdio_dev *sdiodev, skb_pull(glom_skb, skb->len); } } else - err = brcmf_sdiod_sglist_rw(sdiodev, SDIO_FUNC_2, false, addr, - pktq); + err = brcmf_sdiod_sglist_rw(sdiodev, sdiodev->func[2], false, + addr, pktq); done: brcmu_pkt_buf_free_skb(glom_skb); @@ -612,7 +618,8 @@ int brcmf_sdiod_send_buf(struct brcmf_sdio_dev *sdiodev, u8 *buf, uint nbytes) addr |= SBSDIO_SB_ACCESS_2_4B_FLAG; if (!err) - err = brcmf_sdiod_buff_write(sdiodev, SDIO_FUNC_2, addr, mypkt); + err = brcmf_sdiod_buff_write(sdiodev, sdiodev->func[2], addr, + mypkt); brcmu_pkt_buf_free_skb(mypkt); @@ -637,14 +644,14 @@ int brcmf_sdiod_send_pkt(struct brcmf_sdio_dev *sdiodev, if (pktq->qlen == 1 || !sdiodev->sg_support) { skb_queue_walk(pktq, skb) { - err = brcmf_sdiod_buff_write(sdiodev, SDIO_FUNC_2, + err = brcmf_sdiod_buff_write(sdiodev, sdiodev->func[2], addr, skb); if (err) break; } } else { - err = brcmf_sdiod_sglist_rw(sdiodev, SDIO_FUNC_2, true, addr, - pktq); + err = brcmf_sdiod_sglist_rw(sdiodev, sdiodev->func[2], true, + addr, pktq); } return err; @@ -694,10 +701,10 @@ brcmf_sdiod_ramrw(struct brcmf_sdio_dev *sdiodev, bool write, u32 address, if (write) { memcpy(pkt->data, data, dsize); - err = brcmf_sdiod_buff_write(sdiodev, SDIO_FUNC_1, + err = brcmf_sdiod_buff_write(sdiodev, sdiodev->func[1], sdaddr, pkt); } else { - err = brcmf_sdiod_buff_read(sdiodev, SDIO_FUNC_1, + err = brcmf_sdiod_buff_read(sdiodev, sdiodev->func[1], sdaddr, pkt); } @@ -726,12 +733,12 @@ brcmf_sdiod_ramrw(struct brcmf_sdio_dev *sdiodev, bool write, u32 address, return err; } -int brcmf_sdiod_abort(struct brcmf_sdio_dev *sdiodev, u8 fn) +int brcmf_sdiod_abort(struct brcmf_sdio_dev *sdiodev, struct sdio_func *func) { brcmf_dbg(SDIO, "Enter\n"); /* Issue abort cmd52 command through F0 */ - brcmf_sdiod_func0_wb(sdiodev, SDIO_CCCR_ABORT, fn, NULL); + brcmf_sdiod_func0_wb(sdiodev, SDIO_CCCR_ABORT, func->num, NULL); brcmf_dbg(SDIO, "Exit\n"); return 0; @@ -1102,7 +1109,7 @@ static int brcmf_ops_sdio_suspend(struct device *dev) func = container_of(dev, struct sdio_func, dev); brcmf_dbg(SDIO, "Enter: F%d\n", func->num); - if (func->num != SDIO_FUNC_1) + if (func->num != 1) return 0; @@ -1131,7 +1138,7 @@ static int brcmf_ops_sdio_resume(struct device *dev) struct sdio_func *func = container_of(dev, struct sdio_func, dev); brcmf_dbg(SDIO, "Enter: F%d\n", func->num); - if (func->num != SDIO_FUNC_2) + if (func->num != 2) return 0; brcmf_sdiod_freezer_off(sdiodev); diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c index 8a730133db77..c95d9efe8672 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c @@ -1148,7 +1148,7 @@ static void brcmf_sdio_rxfail(struct brcmf_sdio *bus, bool abort, bool rtx) rtx ? ", send NAK" : ""); if (abort) - brcmf_sdiod_abort(bus->sdiodev, SDIO_FUNC_2); + brcmf_sdiod_abort(bus->sdiodev, bus->sdiodev->func[2]); brcmf_sdiod_writeb(bus->sdiodev, SBSDIO_FUNC1_FRAMECTRL, SFC_RF_TERM, &err); @@ -1198,7 +1198,7 @@ static void brcmf_sdio_txfail(struct brcmf_sdio *bus) brcmf_err("sdio error, abort command and terminate frame\n"); bus->sdcnt.tx_sderrs++; - brcmf_sdiod_abort(sdiodev, SDIO_FUNC_2); + brcmf_sdiod_abort(sdiodev, sdiodev->func[2]); brcmf_sdiod_writeb(sdiodev, SBSDIO_FUNC1_FRAMECTRL, SFC_WF_TERM, NULL); bus->sdcnt.f1regdata++; @@ -2061,7 +2061,7 @@ static int brcmf_sdio_txpkt_prep_sg(struct brcmf_sdio *bus, int ntail, ret; sdiodev = bus->sdiodev; - blksize = sdiodev->func[SDIO_FUNC_2]->cur_blksize; + blksize = sdiodev->func[2]->cur_blksize; /* sg entry alignment should be a divisor of block size */ WARN_ON(blksize % bus->sgentry_align); @@ -2431,7 +2431,7 @@ static void brcmf_sdio_bus_stop(struct device *dev) /* Turn off the bus (F2), free any pending packets */ brcmf_dbg(INTR, "disable SDIO interrupts\n"); - sdio_disable_func(sdiodev->func[SDIO_FUNC_2]); + sdio_disable_func(sdiodev->func[2]); /* Clear any pending interrupts now that F2 is disabled */ brcmf_sdiod_writel(sdiodev, core->base + __sd_reg(intstatus), @@ -4043,8 +4043,7 @@ static void brcmf_sdio_firmware_callback(struct device *dev, int err, brcmf_sdiod_writel(sdiod, core->base + __sd_reg(tosbmailboxdata), SDPCM_PROT_VERSION << SMB_DATA_VERSION_SHIFT, NULL); - err = sdio_enable_func(sdiodev->func[SDIO_FUNC_2]); - + err = sdio_enable_func(sdiodev->func[2]); brcmf_dbg(INFO, "enable F2: err=%d\n", err); @@ -4059,7 +4058,7 @@ static void brcmf_sdio_firmware_callback(struct device *dev, int err, brcmf_sdiod_writeb(sdiodev, SBSDIO_WATERMARK, 8, &err); } else { /* Disable F2 again */ - sdio_disable_func(sdiodev->func[SDIO_FUNC_2]); + sdio_disable_func(sdiodev->func[2]); goto release; } @@ -4197,7 +4196,7 @@ struct brcmf_sdio *brcmf_sdio_probe(struct brcmf_sdio_dev *sdiodev) sdio_claim_host(bus->sdiodev->func[1]); /* Disable F2 to clear any intermediate frame state on the dongle */ - sdio_disable_func(bus->sdiodev->func[SDIO_FUNC_2]); + sdio_disable_func(bus->sdiodev->func[2]); bus->rxflow = false; diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.h index 6e2fc065b8a7..54a03036fccb 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.h +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.h @@ -45,9 +45,6 @@ #define REG_F0_REG_MASK 0x7FF #define REG_F1_MISC_MASK 0x1FFFF -/* as of sdiod rev 0, supports 3 functions */ -#define SBSDIO_NUM_FUNCTION 3 - /* function 0 vendor specific CCCR registers */ #define SDIO_CCCR_BRCM_CARDCAP 0xf0 @@ -350,7 +347,8 @@ int brcmf_sdiod_ramrw(struct brcmf_sdio_dev *sdiodev, bool write, u32 address, u8 *data, uint size); /* Issue an abort to the specified function */ -int brcmf_sdiod_abort(struct brcmf_sdio_dev *sdiodev, u8 fn); +int brcmf_sdiod_abort(struct brcmf_sdio_dev *sdiodev, struct sdio_func *func); + void brcmf_sdiod_sgtable_alloc(struct brcmf_sdio_dev *sdiodev); void brcmf_sdiod_change_state(struct brcmf_sdio_dev *sdiodev, enum brcmf_sdiod_state state);

[27/30] brcmfmac: Replace function index with function pointer

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