--- zzzz-none-000/linux-4.4.271/drivers/mmc/core/sd.c 2021-06-03 06:22:09.000000000 +0000 +++ dakota-7530ac-750/linux-4.4.271/drivers/mmc/core/sd.c 2023-01-11 09:25:42.000000000 +0000 @@ -240,7 +240,6 @@ { unsigned int au, es, et, eo; int err, i; - u32 *ssr; if (!(card->csd.cmdclass & CCC_APP_SPEC)) { pr_warn("%s: card lacks mandatory SD Status function\n", @@ -248,11 +247,7 @@ return 0; } - ssr = kmalloc(64, GFP_KERNEL); - if (!ssr) - return -ENOMEM; - - err = mmc_app_sd_status(card, ssr); + err = mmc_app_sd_status(card, card->raw_ssr); if (err) { pr_warn("%s: problem reading SD Status register\n", mmc_hostname(card->host)); @@ -260,21 +255,21 @@ goto out; } - for (i = 0; i < 16; i++) - ssr[i] = be32_to_cpu(ssr[i]); + for (i = 0; i < ARRAY_SIZE(card->raw_ssr); i++) + card->raw_ssr[i] = be32_to_cpu(card->raw_ssr[i]); /* * UNSTUFF_BITS only works with four u32s so we have to offset the * bitfield positions accordingly. */ - au = UNSTUFF_BITS(ssr, 428 - 384, 4); + au = UNSTUFF_BITS(card->raw_ssr, 428 - 384, 4); if (au) { if (au <= 9 || card->scr.sda_spec3) { card->ssr.au = sd_au_size[au]; - es = UNSTUFF_BITS(ssr, 408 - 384, 16); - et = UNSTUFF_BITS(ssr, 402 - 384, 6); + es = UNSTUFF_BITS(card->raw_ssr, 408 - 384, 16); + et = UNSTUFF_BITS(card->raw_ssr, 402 - 384, 6); if (es && et) { - eo = UNSTUFF_BITS(ssr, 400 - 384, 2); + eo = UNSTUFF_BITS(card->raw_ssr, 400 - 384, 2); card->ssr.erase_timeout = (et * 1000) / es; card->ssr.erase_offset = eo * 1000; } @@ -284,7 +279,6 @@ } } out: - kfree(ssr); return err; } @@ -691,7 +685,13 @@ MMC_DEV_ATTR(name, "%s\n", card->cid.prod_name); MMC_DEV_ATTR(oemid, "0x%04x\n", card->cid.oemid); MMC_DEV_ATTR(serial, "0x%08x\n", card->cid.serial); - +MMC_DEV_ATTR(ssr, + "%08x%08x%08x%08x%08x%08x%08x%08x%08x%08x%08x%08x%08x%08x%08x%08x\n", + card->raw_ssr[0], card->raw_ssr[1], card->raw_ssr[2], card->raw_ssr[3], + card->raw_ssr[4], card->raw_ssr[5], card->raw_ssr[6], card->raw_ssr[7], + card->raw_ssr[8], card->raw_ssr[9], card->raw_ssr[10], + card->raw_ssr[11], card->raw_ssr[12], card->raw_ssr[13], + card->raw_ssr[14], card->raw_ssr[15]); static struct attribute *sd_std_attrs[] = { &dev_attr_cid.attr, @@ -706,6 +706,7 @@ &dev_attr_name.attr, &dev_attr_oemid.attr, &dev_attr_serial.attr, + &dev_attr_ssr.attr, NULL, }; ATTRIBUTE_GROUPS(sd_std);