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2018-06-12treewide: devm_kzalloc() -> devm_kcalloc()Kees Cook1-2/+4
The devm_kzalloc() function has a 2-factor argument form, devm_kcalloc(). This patch replaces cases of: devm_kzalloc(handle, a * b, gfp) with: devm_kcalloc(handle, a * b, gfp) as well as handling cases of: devm_kzalloc(handle, a * b * c, gfp) with: devm_kzalloc(handle, array3_size(a, b, c), gfp) as it's slightly less ugly than: devm_kcalloc(handle, array_size(a, b), c, gfp) This does, however, attempt to ignore constant size factors like: devm_kzalloc(handle, 4 * 1024, gfp) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. Some manual whitespace fixes were needed in this patch, as Coccinelle really liked to write "=devm_kcalloc..." instead of "= devm_kcalloc...". The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ expression HANDLE; type TYPE; expression THING, E; @@ ( devm_kzalloc(HANDLE, - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | devm_kzalloc(HANDLE, - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression HANDLE; expression COUNT; typedef u8; typedef __u8; @@ ( devm_kzalloc(HANDLE, - sizeof(u8) * (COUNT) + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(__u8) * (COUNT) + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(char) * (COUNT) + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(unsigned char) * (COUNT) + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(u8) * COUNT + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(__u8) * COUNT + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(char) * COUNT + COUNT , ...) | devm_kzalloc(HANDLE, - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ expression HANDLE; type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * (COUNT_ID) + COUNT_ID, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * COUNT_ID + COUNT_ID, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * (COUNT_CONST) + COUNT_CONST, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * COUNT_CONST + COUNT_CONST, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * (COUNT_ID) + COUNT_ID, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * COUNT_ID + COUNT_ID, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * (COUNT_CONST) + COUNT_CONST, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * COUNT_CONST + COUNT_CONST, sizeof(THING) , ...) ) // 2-factor product, only identifiers. @@ expression HANDLE; identifier SIZE, COUNT; @@ - devm_kzalloc + devm_kcalloc (HANDLE, - SIZE * COUNT + COUNT, SIZE , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression HANDLE; expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( devm_kzalloc(HANDLE, - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression HANDLE; expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( devm_kzalloc(HANDLE, - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | devm_kzalloc(HANDLE, - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | devm_kzalloc(HANDLE, - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ expression HANDLE; identifier STRIDE, SIZE, COUNT; @@ ( devm_kzalloc(HANDLE, - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | devm_kzalloc(HANDLE, - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products, // when they're not all constants... @@ expression HANDLE; expression E1, E2, E3; constant C1, C2, C3; @@ ( devm_kzalloc(HANDLE, C1 * C2 * C3, ...) | devm_kzalloc(HANDLE, - (E1) * E2 * E3 + array3_size(E1, E2, E3) , ...) | devm_kzalloc(HANDLE, - (E1) * (E2) * E3 + array3_size(E1, E2, E3) , ...) | devm_kzalloc(HANDLE, - (E1) * (E2) * (E3) + array3_size(E1, E2, E3) , ...) | devm_kzalloc(HANDLE, - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants, // keeping sizeof() as the second factor argument. @@ expression HANDLE; expression THING, E1, E2; type TYPE; constant C1, C2, C3; @@ ( devm_kzalloc(HANDLE, sizeof(THING) * C2, ...) | devm_kzalloc(HANDLE, sizeof(TYPE) * C2, ...) | devm_kzalloc(HANDLE, C1 * C2 * C3, ...) | devm_kzalloc(HANDLE, C1 * C2, ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * (E2) + E2, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(TYPE) * E2 + E2, sizeof(TYPE) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * (E2) + E2, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - sizeof(THING) * E2 + E2, sizeof(THING) , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - (E1) * E2 + E1, E2 , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - (E1) * (E2) + E1, E2 , ...) | - devm_kzalloc + devm_kcalloc (HANDLE, - E1 * E2 + E1, E2 , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>
2018-06-05Merge tag 'mmc-v4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmcLinus Torvalds52-431/+1148
Pull MMC updates from Ulf Hansson: "MMC core: - Decrease polling rate for erase/trim/discard - Allow non-sleeping GPIOs for card detect - Improve mmc block removal path - Enable support for mmc_sw_reset() for SDIO cards - Add mmc_sw_reset() to allow users to do a soft reset of the card - Allow power delay to be tunable via DT - Allow card detect debounce delay to be tunable via DT - Enable new quirk to limit clock rate for Marvell 8887 chip - Don't show eMMC RPMB and BOOT areas in /proc/partitions - Add capability to avoid 3.3V signaling for fragile HWs MMC host: - Improve/fixup support for handle highmem pages - Remove depends on HAS_DMA in case of platform dependency - mvsdio: Enable support for erase/trim/discard - rtsx_usb: Enable support for erase/trim/discard - renesas_sdhi: Fix WP logic regressions - renesas_sdhi: Add r8a77965 support - renesas_sdhi: Add R8A77980 to whitelist - meson: Add optional support for device reset - meson: Add support for the Meson-AXG platform - dw_mmc: Add new driver for BlueField DW variant - mediatek: Add support for 64G DRAM DMA - sunxi: Deploy runtime PM support - jz4740: Add support for JZ4780 - jz4740: Enable support for DT based platforms - sdhci: Various improvement to timeout handling - sdhci: Disable support for HS200/HS400/UHS when no 1.8V support - sdhci-omap: Add support for controller in k2g SoC - sdhci-omap: Add workarounds for a couple of Erratas - sdhci-omap: Enable support for generic sdhci DT properties - sdhci-cadence: Re-send tune request to deal with errata - sdhci-pci: Fix 3.3V voltage switch for some BYT-based Intel controllers - sdhci-pci: Avoid 3.3V signaling on some NI 904x - sdhci-esdhc-imx: Use watermark levels for PIO access - sdhci-msm: Improve card detection handling - sdhci-msm: Add support voltage pad switching" * tag 'mmc-v4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (104 commits) mmc: renesas_sdhi: really fix WP logic regressions mmc: mvsdio: Enable MMC_CAP_ERASE mmc: mvsdio: Respect card busy time out from mmc core mmc: sdhci-msm: Remove NO_CARD_NO_RESET quirk mmc: sunxi: Use ifdef rather than __maybe_unused mmc: mxmmc: Use ifdef rather than __maybe_unused mmc: mxmmc: include linux/highmem.h mmc: sunxi: mark PM functions as __maybe_unused mmc: Throttle calls to MMC_SEND_STATUS during mmc_do_erase() mmc: au1xmmc: handle highmem pages mmc: Allow non-sleeping GPIO cd mmc: sdhci-*: Don't emit error msg if sdhci_add_host() fails mmc: sd: Define name for default speed dtr mmc: core: Move calls to ->prepare_hs400_tuning() closer to mmc code mmc: sdhci-xenon: use match_string() helper mmc: wbsd: handle highmem pages mmc: ushc: handle highmem pages mmc: mxcmmc: handle highmem pages mmc: atmel-mci: use sg_copy_{from,to}_buffer mmc: android-goldfish: use sg_copy_{from,to}_buffer ...
2018-06-05Merge tag 'pm-4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds1-1/+1
Pull power management updates from Rafael Wysocki: "These include a significant update of the generic power domains (genpd) and Operating Performance Points (OPP) frameworks, mostly related to the introduction of power domain performance levels, cpufreq updates (new driver for Qualcomm Kryo processors, updates of the existing drivers, some core fixes, schedutil governor improvements), PCI power management fixes, ACPI workaround for EC-based wakeup events handling on resume from suspend-to-idle, and major updates of the turbostat and pm-graph utilities. Specifics: - Introduce power domain performance levels into the the generic power domains (genpd) and Operating Performance Points (OPP) frameworks (Viresh Kumar, Rajendra Nayak, Dan Carpenter). - Fix two issues in the runtime PM framework related to the initialization and removal of devices using device links (Ulf Hansson). - Clean up the initialization of drivers for devices in PM domains (Ulf Hansson, Geert Uytterhoeven). - Fix a cpufreq core issue related to the policy sysfs interface causing CPU online to fail for CPUs sharing one cpufreq policy in some situations (Tao Wang). - Make it possible to use platform-specific suspend/resume hooks in the cpufreq-dt driver and make the Armada 37xx DVFS use that feature (Viresh Kumar, Miquel Raynal). - Optimize policy transition notifications in cpufreq (Viresh Kumar). - Improve the iowait boost mechanism in the schedutil cpufreq governor (Patrick Bellasi). - Improve the handling of deferred frequency updates in the schedutil cpufreq governor (Joel Fernandes, Dietmar Eggemann, Rafael Wysocki, Viresh Kumar). - Add a new cpufreq driver for Qualcomm Kryo (Ilia Lin). - Fix and clean up some cpufreq drivers (Colin Ian King, Dmitry Osipenko, Doug Smythies, Luc Van Oostenryck, Simon Horman, Viresh Kumar). - Fix the handling of PCI devices with the DPM_SMART_SUSPEND flag set and update stale comments in the PCI core PM code (Rafael Wysocki). - Work around an issue related to the handling of EC-based wakeup events in the ACPI PM core during resume from suspend-to-idle if the EC has been put into the low-power mode (Rafael Wysocki). - Improve the handling of wakeup source objects in the PM core (Doug Berger, Mahendran Ganesh, Rafael Wysocki). - Update the driver core to prevent deferred probe from breaking suspend/resume ordering (Feng Kan). - Clean up the PM core somewhat (Bjorn Helgaas, Ulf Hansson, Rafael Wysocki). - Make the core suspend/resume code and cpufreq support the RT patch (Sebastian Andrzej Siewior, Thomas Gleixner). - Consolidate the PM QoS handling in cpuidle governors (Rafael Wysocki). - Fix a possible crash in the hibernation core (Tetsuo Handa). - Update the rockchip-io Adaptive Voltage Scaling (AVS) driver (David Wu). - Update the turbostat utility (fixes, cleanups, new CPU IDs, new command line options, built-in "Low Power Idle" counters support, new POLL and POLL% columns) and add an entry for it to MAINTAINERS (Len Brown, Artem Bityutskiy, Chen Yu, Laura Abbott, Matt Turner, Prarit Bhargava, Srinivas Pandruvada). - Update the pm-graph to version 5.1 (Todd Brandt). - Update the intel_pstate_tracer utility (Doug Smythies)" * tag 'pm-4.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (128 commits) tools/power turbostat: update version number tools/power turbostat: Add Node in output tools/power turbostat: add node information into turbostat calculations tools/power turbostat: remove num_ from cpu_topology struct tools/power turbostat: rename num_cores_per_pkg to num_cores_per_node tools/power turbostat: track thread ID in cpu_topology tools/power turbostat: Calculate additional node information for a package tools/power turbostat: Fix node and siblings lookup data tools/power turbostat: set max_num_cpus equal to the cpumask length tools/power turbostat: if --num_iterations, print for specific number of iterations tools/power turbostat: Add Cannon Lake support tools/power turbostat: delete duplicate #defines x86: msr-index.h: Correct SNB_C1/C3_AUTO_UNDEMOTE defines tools/power turbostat: Correct SNB_C1/C3_AUTO_UNDEMOTE defines tools/power turbostat: add POLL and POLL% column tools/power turbostat: Fix --hide Pk%pc10 tools/power turbostat: Build-in "Low Power Idle" counters support tools/power turbostat: Don't make man pages executable tools/power turbostat: remove blank lines tools/power turbostat: a small C-states dump readability immprovement ...
2018-06-04Merge branch 'hch.procfs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds1-14/+1
Pull procfs updates from Al Viro: "Christoph's proc_create_... cleanups series" * 'hch.procfs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (44 commits) xfs, proc: hide unused xfs procfs helpers isdn/gigaset: add back gigaset_procinfo assignment proc: update SIZEOF_PDE_INLINE_NAME for the new pde fields tty: replace ->proc_fops with ->proc_show ide: replace ->proc_fops with ->proc_show ide: remove ide_driver_proc_write isdn: replace ->proc_fops with ->proc_show atm: switch to proc_create_seq_private atm: simplify procfs code bluetooth: switch to proc_create_seq_data netfilter/x_tables: switch to proc_create_seq_private netfilter/xt_hashlimit: switch to proc_create_{seq,single}_data neigh: switch to proc_create_seq_data hostap: switch to proc_create_{seq,single}_data bonding: switch to proc_create_seq_data rtc/proc: switch to proc_create_single_data drbd: switch to proc_create_single resource: switch to proc_create_seq_data staging/rtl8192u: simplify procfs code jfs: simplify procfs code ...
2018-06-04Merge tag 'for-4.18/block-20180603' of git://git.kernel.dk/linux-blockLinus Torvalds2-9/+8
Pull block updates from Jens Axboe: - clean up how we pass around gfp_t and blk_mq_req_flags_t (Christoph) - prepare us to defer scheduler attach (Christoph) - clean up drivers handling of bounce buffers (Christoph) - fix timeout handling corner cases (Christoph/Bart/Keith) - bcache fixes (Coly) - prep work for bcachefs and some block layer optimizations (Kent). - convert users of bio_sets to using embedded structs (Kent). - fixes for the BFQ io scheduler (Paolo/Davide/Filippo) - lightnvm fixes and improvements (Matias, with contributions from Hans and Javier) - adding discard throttling to blk-wbt (me) - sbitmap blk-mq-tag handling (me/Omar/Ming). - remove the sparc jsflash block driver, acked by DaveM. - Kyber scheduler improvement from Jianchao, making it more friendly wrt merging. - conversion of symbolic proc permissions to octal, from Joe Perches. Previously the block parts were a mix of both. - nbd fixes (Josef and Kevin Vigor) - unify how we handle the various kinds of timestamps that the block core and utility code uses (Omar) - three NVMe pull requests from Keith and Christoph, bringing AEN to feature completeness, file backed namespaces, cq/sq lock split, and various fixes - various little fixes and improvements all over the map * tag 'for-4.18/block-20180603' of git://git.kernel.dk/linux-block: (196 commits) blk-mq: update nr_requests when switching to 'none' scheduler block: don't use blocking queue entered for recursive bio submits dm-crypt: fix warning in shutdown path lightnvm: pblk: take bitmap alloc. out of critical section lightnvm: pblk: kick writer on new flush points lightnvm: pblk: only try to recover lines with written smeta lightnvm: pblk: remove unnecessary bio_get/put lightnvm: pblk: add possibility to set write buffer size manually lightnvm: fix partial read error path lightnvm: proper error handling for pblk_bio_add_pages lightnvm: pblk: fix smeta write error path lightnvm: pblk: garbage collect lines with failed writes lightnvm: pblk: rework write error recovery path lightnvm: pblk: remove dead function lightnvm: pass flag on graceful teardown to targets lightnvm: pblk: check for chunk size before allocating it lightnvm: pblk: remove unnecessary argument lightnvm: pblk: remove unnecessary indirection lightnvm: pblk: return NVM_ error on failed submission lightnvm: pblk: warn in case of corrupted write buffer ...
2018-06-04mmc: renesas_sdhi: really fix WP logic regressionsWolfram Sang3-0/+9
This reverts commit e060d376cc61 ("mmc: renesas_sdhi: fix WP detection") and adds some code to really fix the regressions. It was missed so far that Renesas R-Car instantiations of SDHI chose to disable internal WP and used the existence of "wp-gpios" to en/disable WP at all. With the first refactoring by Yamada-san with commit 2ad1db059b9a ("mmc: renesas_sdhi: use MMC_CAP2_NO_WRITE_PROTECT instead of TMIO own flag"), WP was always disabled even when GPIOs were present. With Wolfram's first fix which gets now reverted, GPIOs were honored. But when not available, the fallback was to internal WP and not to disabled WP. This caused wrong WP status on uSD card slots. Restore the old behaviour now. By default, WP is disabled. When a GPIO is found, the GPIO re-enables WP. We will think about possible better ways to handle this in the future. Tested on a previously regressing Renesas Lager board (H2) and a still working Renesas Salvator-X board (M3-W). Reported-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Cc: stable@vger.kernel.org # v4.17+ Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-06-04Merge branch 'pm-domains'Rafael J. Wysocki1-1/+1
* pm-domains: PM / domains: Improve wording of dev_pm_domain_attach() comment PM / Domains: Don't return -EEXIST at attach when PM domain exists spi: Respect all error codes from dev_pm_domain_attach() soundwire: Respect all error codes from dev_pm_domain_attach() mmc: sdio: Respect all error codes from dev_pm_domain_attach() i2c: Respect all error codes from dev_pm_domain_attach() driver core: Respect all error codes from dev_pm_domain_attach() amba: Respect all error codes from dev_pm_domain_attach() PM / Domains: Allow a better error handling of dev_pm_domain_attach() PM / Domains: Check for existing PM domain in dev_pm_domain_attach() PM / Domains: Drop redundant code in genpd while attaching devices PM / Domains: Drop comment in genpd about legacy Samsung DT binding PM / Domains: Fix error path during attach in genpd
2018-05-31mmc: mvsdio: Enable MMC_CAP_ERASEUlf Hansson1-0/+2
There is no obvious reasons to why mvsdio shouldn't be able to support erase/trim/discard operations, hence let's set MMC_CAP_ERASE for it. Cc: Damien Thebault <damien.thebault@vitec.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Damien Thebault <damien.thebault@vitec.com>
2018-05-31mmc: mvsdio: Respect card busy time out from mmc coreUlf Hansson1-1/+3
Instead of using a hardcoded timeout of 5 * HZ jiffies, let's respect the command busy timeout provided by the mmc core. This make the used timeout more reliable. Cc: Damien Thebault <damien.thebault@vitec.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Damien Thebault <damien.thebault@vitec.com>
2018-05-31mmc: sdhci-msm: Remove NO_CARD_NO_RESET quirkGeorgi Djakov1-1/+0
Now we have a proper implementation for the power irq handling and this quirk is not needed anymore. In fact, it is causing card detection delays on apq8096 platforms and the following error is displayed: sdhci_msm 74a4900.sdhci: mmc0: pwr_irq for req: (4) timed out The quirk is forcing the controller to retain 1.8V signalling on the slot even when a new card is inserted, which is not correct. The proper behavior would be to reset the controller in order to start with 3.3V signaling. Fixes: c0309b3803fe ("mmc: sdhci-msm: Add sdhci msm register write APIs which wait for pwr irq") Suggested-by: Vijay Viswanath <vviswana@codeaurora.org> Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-05-30mmc: sunxi: Use ifdef rather than __maybe_unusedUlf Hansson1-2/+4
To be consistent with code in other mmc host drivers, convert to check the correct PM config #ifdef in favor of using __maybe_unused. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-05-30mmc: mxmmc: Use ifdef rather than __maybe_unusedUlf Hansson1-2/+4
To be consistent with code in other mmc host drivers, convert to check the correct PM config #ifdef in favor of using __maybe_unused. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-05-29mmc: complete requests from ->timeoutChristoph Hellwig1-2/+3
By completing the request entirely in the driver we can remove the BLK_EH_HANDLED return value and thus the split responsibility between the driver and the block layer that has been causing trouble. [While this keeps existing behavior it seems to mismatch the comment, maintainers please chime in!] Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-05-29mmc: mxmmc: include linux/highmem.hArnd Bergmann1-0/+1
The highmem conversion caused a build error in some configurations: drivers/mmc/host/mxcmmc.c: In function 'mxcmci_transfer_data': drivers/mmc/host/mxcmmc.c:622:10: error: implicit declaration of function 'kmap_atomic'; did you mean 'in_atomic'? [-Werror=implicit-function-declaration] This includes the correct header file. Fixes: b189e7589f6d ("mmc: mxcmmc: handle highmem pages") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-05-29mmc: sunxi: mark PM functions as __maybe_unusedArnd Bergmann1-2/+2
The newly added runtime-pm functions cause a harmless warning when CONFIG_PM is disabled: drivers/mmc/host/sunxi-mmc.c:1452:12: error: 'sunxi_mmc_runtime_suspend' defined but not used [-Werror=unused-function] static int sunxi_mmc_runtime_suspend(struct device *dev) ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/mmc/host/sunxi-mmc.c:1435:12: error: 'sunxi_mmc_runtime_resume' defined but not used [-Werror=unused-function] static int sunxi_mmc_runtime_resume(struct device *dev) This marks them as __maybe_unused to shut up the warning. Fixes: 9a8e1e8cc2c0 ("mmc: sunxi: Add runtime_pm support") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-05-29mmc: Throttle calls to MMC_SEND_STATUS during mmc_do_erase()Martin Hicks1-2/+9
This drastically reduces the rate at which the MMC_SEND_STATUS cmd polls for completion of the MMC Erase operation. The patch does this by adding a backoff sleep that starts by sleeping for short intervals (128-256us), and ramps up to sleeping for 32-64ms. Even on very quickly completing erase operations, the loop iterates a few times, so not too much extra latency is added to these commands. For long running discard operarations, like a full-device secure discard, this change drops the interrupt rates on my single-core NXP I.MX6UL from 45000/s to about 20/s, and greatly improves system responsiveness. Signed-off-by: Martin Hicks <mort@bork.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-05-29mmc: au1xmmc: handle highmem pagesChristoph Hellwig1-4/+8
Use kmap_atomic to map the scatterlist entry before using it. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-05-29mmc: Allow non-sleeping GPIO cdEvan Green1-4/+11
This change uses the appropriate _cansleep or non-sleeping API for reading GPIO card detect state. This allows users with GPIOs that never sleep to avoid a warning when certain quirks are present. The sdhci controller has an SDHCI_QUIRK_NO_CARD_NO_RESET, which indicates that a controller will not reset properly if no card is inserted. With this quirk enabled, mmc_get_cd_gpio is called in several places with a spinlock held and interrupts disabled. gpiod_get_raw_value_cansleep is not happy with this situation, and throws out a warning. For boards that a) use controllers that have this quirk, and b) wire card detect up to a GPIO that doesn't sleep, this is a spurious warning. This change silences that warning, at the cost of pushing this problem down to users that have sleeping GPIOs and controllers with this quirk. Signed-off-by: Evan Green <evgreen@chromium.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-05-29mmc: sdhci-*: Don't emit error msg if sdhci_add_host() failsJisheng Zhang7-21/+7
I noticed below error msg with sdhci-pxav3 on some berlin platforms: [.....] sdhci-pxav3 f7ab0000.sdhci failed to add host It is due to getting related vmmc or vqmmc regulator returns -EPROBE_DEFER. It doesn't matter at all but it's confusing. >From another side, if driver probing fails and the error number isn't -EPROBE_DEFER, the core will tell us something as below: [.....] sdhci-pxav3: probe of f7ab0000.sdhci failed with error -EXX So it's not necessary to emit error msg if sdhci_add_host() fails. And some other sdhci host drivers also have this issue, let's fix them together. Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Patrice Chotard <patrice.chotard@st.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-05-29mmc: core: Move calls to ->prepare_hs400_tuning() closer to mmc codeUlf Hansson2-3/+4
Move the calls to ->prepare_hs400_tuning(), from mmc_retune() into mmc_hs400_to_hs200(), as it better belongs there, rather than being generic to all type of cards. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
2018-05-28mmc: sdhci-xenon: use match_string() helperXie Yisheng1-8/+3
match_string() returns the index of an array for a matching string, which can be used intead of open coded variant. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Hu Ziji <huziji@marvell.com> Cc: Ulf Hansson <ulf.hansson@linaro.org> Cc: linux-mmc@vger.kernel.org Signed-off-by: Yisheng Xie <xieyisheng1@huawei.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-05-21Merge branch 'fixes' into nextUlf Hansson2-8/+27
2018-05-21mmc: wbsd: handle highmem pagesChristoph Hellwig1-38/+30
Use sg_copy_{from,to}_buffer to bounce buffer and kmap_atomic to map the scatterlist entry before using it. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-05-21mmc: ushc: handle highmem pagesChristoph Hellwig1-1/+3
Pass the scatterlist on to the USB subsystem instead of expecting a kernel virtual address. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-05-21mmc: mxcmmc: handle highmem pagesChristoph Hellwig1-4/+11
Use kmap_atomic to map the scatterlist entry before using it. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-05-21mmc: atmel-mci: use sg_copy_{from,to}_bufferChristoph Hellwig1-12/+9
This handles highmem pages, and also cleans up the code. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-05-21mmc: android-goldfish: use sg_copy_{from,to}_bufferChristoph Hellwig1-4/+4
This handles highmem pages, and also cleans up the code. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-05-21mmc: block: Don't switch to the same partition type in mmc_blk_remove()Shawn Lin1-3/+5
It's pointless to switch and trace partition type if the current selected device partition is the same with that one. Moreover, cycled claiming host associated with mmc_blk_part_switch() could make mmc_blk_remove() end up waiting for grabbing the context if it's occupied, which lead requests could still hit the low-level drivers, if an asynchronous unbind for host drivers happened, as the card hasn't been set removed in the remove path. So a simple dd in background: dd if=/dev/mmcblk0 of=/dev/null bs=512k count=100000 & and doing unbind then: echo fe320000.dwmmc > /sys/bus/platform/drivers/dwmmc_rockchip/unbind could make the console stuck for quite a while depending on the numbers of requests. Suggested-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-05-21mmc: sdhci-iproc: add SDHCI_QUIRK2_HOST_OFF_CARD_ON for cygnusCorneliu Doban1-1/+1
The SDHCI_QUIRK2_HOST_OFF_CARD_ON is needed for the driver to properly reset the host controller (reset all) on initialization after exiting deep sleep. Signed-off-by: Corneliu Doban <corneliu.doban@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Reviewed-by: Ray Jui <ray.jui@broadcom.com> Reviewed-by: Srinath Mannam <srinath.mannam@broadcom.com> Fixes: c833e92bbb60 ("mmc: sdhci-iproc: support standard byte register accesses") Cc: stable@vger.kernel.org # v4.10+ Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-05-21mmc: sdhci-iproc: fix 32bit writes for TRANSFER_MODE registerCorneliu Doban1-5/+25
When the host controller accepts only 32bit writes, the value of the 16bit TRANSFER_MODE register, that has the same 32bit address as the 16bit COMMAND register, needs to be saved and it will be written in a 32bit write together with the command as this will trigger the host to send the command on the SD interface. When sending the tuning command, TRANSFER_MODE is written and then sdhci_set_transfer_mode reads it back to clear AUTO_CMD12 bit and write it again resulting in wrong value to be written because the initial write value was saved in a shadow and the read-back returned a wrong value, from the register. Fix sdhci_iproc_readw to return the saved value of TRANSFER_MODE when a saved value exist. Same fix for read of BLOCK_SIZE and BLOCK_COUNT registers, that are saved for a different reason, although a scenario that will cause the mentioned problem on this registers is not probable. Fixes: b580c52d58d9 ("mmc: sdhci-iproc: add IPROC SDHCI driver") Signed-off-by: Corneliu Doban <corneliu.doban@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Cc: stable@vger.kernel.org # v4.1+ Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-05-21mmc: sdhci-iproc: remove hard coded mmc cap 1.8vSrinath Mannam1-1/+0
Remove hard coded mmc cap 1.8v from platform data as it is board specific. The 1.8v DDR mmc caps can be enabled using DTS property for those boards that support it. Fixes: b17b4ab8ce38 ("mmc: sdhci-iproc: define MMC caps in platform data") Signed-off-by: Srinath Mannam <srinath.mannam@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Reviewed-by: Ray Jui <ray.jui@broadcom.com> Cc: stable@vger.kernel.org # v4.8+ Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-05-21mmc: block: propagate correct returned value in mmc_rpmb_ioctlMathieu Malaterre1-1/+1
In commit 97548575bef3 ("mmc: block: Convert RPMB to a character device") a new function `mmc_rpmb_ioctl` was added. The final return is simply returning a value of `0` instead of propagating the correct return code. Discovered during a compilation with W=1, silence the following gcc warning drivers/mmc/core/block.c:2470:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable] Signed-off-by: Mathieu Malaterre <malat@debian.org> Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com> Fixes: 97548575bef3 ("mmc: block: Convert RPMB to a character device") Cc: stable@vger.kernel.org # v4.15+ Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-05-21mmc: meson-gx: add device resetJerome Brunet1-0/+9
Trigger the reset line of the mmc controller while probing, if available. The reset should be optional for now, at least until all related DT nodes have the reset property. Reviewed-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Jerome Brunet <jbrunet@baylibre.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-05-21mmc: dw_mmc-bluefield: Add driver extensionLiming Sun3-0/+91
This commit adds extension to the dw_mmc driver for Mellanox BlueField SoC. It updates the UHS_REG_EXT register to bring up the eMMC card on this SoC. Signed-off-by: Liming Sun <lsun@mellanox.com> Reviewed-by: David Woods <dwoods@mellanox.com> Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-05-21mmc: core: add tunable delay waiting for power to be stableShawn Lin2-2/+6
The hard-coded 10ms delay in mmc_power_up came from commit 79bccc5aefb4 ("mmc: increase power up delay"), which said "The TI controller on Toshiba Tecra M5 needs more time to power up or the cards will init incorrectly or not at all." But it's too engineering solution for a special board but force all platforms to wait for that long time, especially painful for mmc_power_up for eMMC when booting. However, it's added since 2009, and we can't tell if other platforms benefit from it. But in practise, the modern hardware are most likely to have a stable power supply with 1ms after setting it for no matter PMIC or discrete power. And more importnatly, most regulators implement the callback of ->set_voltage_time_sel() for regulator core to wait for specific period of time for the power supply to be stable, which means once regulator_set_voltage_* return, the power should reach the the minimum voltage that works for initialization. Of course, if there are some other ways for host to power the card, we should allow them to argue a suitable delay as well. With this patch, we could assign the delay from firmware, or we could assigne it via ->set_ios() callback from host drivers. Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-05-21mmc: renesas_sdhi: Add r8a77965 supportMasaharu Hayakawa1-0/+1
This patch adds r8a77965 support in SDHI. Signed-off-by: Masaharu Hayakawa <masaharu.hayakawa.ry@renesas.com> Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com> Tested-by: Simon Horman <horms+renesas@verge.net.au> Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-05-16tty: replace ->proc_fops with ->proc_showChristoph Hellwig1-14/+1
Just set up the show callback in the tty_operations, and use proc_create_single_data to create the file without additional boilerplace code. Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-05-14mmc: sdio: Respect all error codes from dev_pm_domain_attach()Ulf Hansson1-1/+1
The limitation of being able to check only for -EPROBE_DEFER from dev_pm_domain_attach() has been removed. Hence let's respect all error codes and bail out accordingly. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-05-14block: sanitize blk_get_request calling conventionsChristoph Hellwig1-7/+5
Switch everyone to blk_get_request_flags, and then rename blk_get_request_flags to blk_get_request. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-05-08mmc: tegra: remove redundant return statementAapo Vienamo1-1/+1
A redundant return statement is removed from tegra_sdhci_set_uhs_signaling(). The function returns void and the return does not affect the control flow of the function. Signed-off-by: Aapo Vienamo <aapo.vienamo@iki.fi> Acked-by: Thierry Reding <treding@nvidia.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-05-08mmc: core: Drop unused define for timeoutUlf Hansson1-3/+0
MMC_CORE_TIMEOUT_MS isn't being used no more, let's drop it. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-05-08mmc: rtsx_usb: Enable MMC_CAP_ERASE to allow erase/discard/trim requestsUlf Hansson1-1/+1
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Michał Pecio <michal.pecio@gmail.com>
2018-05-08mmc: rtsx_usb: Use the provided busy timeout from the mmc coreUlf Hansson1-1/+1
Instead of using a fixed 3s timeout for commands with R1B responses, convert to use the per request calculated busy timeout from the mmc core. This is needed to cope with requests that requires longer timeout, for example erase/discard commands. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Michał Pecio <michal.pecio@gmail.com>
2018-05-08mmc: rtsx_usb: Use MMC_CAP2_NO_SDIOUlf Hansson1-13/+2
Instead of having to return -EINVAL when requested to send SDIO specific commands, let's set MMC_CAP2_NO_SDIO as it completely prevents them. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Michał Pecio <michal.pecio@gmail.com>
2018-05-08mmc: core: Implement ->sw_reset bus ops for SDIOUlf Hansson1-0/+13
Let's implement the ->sw_reset() bus ops to allow SDIO func drivers, in particular, to make a SW reset without doing a full power cycle of the SDIO card. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Quentin Schulz <quentin.schulz@bootlin.com> Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
2018-05-08mmc: core: Share internal function to set initial signal voltageUlf Hansson2-7/+13
Move the corresponding code for setting the initial signal voltage, from mmc_power_up() into a new function, mmc_set_initial_signal_voltage(). Make the function internally available to the mmc core, as to allow the following changes to make use of it. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Quentin Schulz <quentin.schulz@bootlin.com> Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
2018-05-08mmc: core: Export a function mmc_sw_reset() to allow soft reset of cardsUlf Hansson2-0/+25
It's rather common that a firmware is loaded into an SDIO func device memory, by the corresponding SDIO func driver during ->probe() time. However, to actually start running the new firmware, sometimes a soft reset (no power cycle) and a re-initialization of the card is needed. This is for example the case with the Espressif ESP8089 WiFi chips, when connected to an SDIO interface. To cope with this scenario, let's add a new exported function, mmc_sw_reset(), which may be called when a soft reset and re-initialization of the card are needed. The mmc_sw_reset() is implemented on top of a new bus ops callback, similar to how the mmc_hw_reset() has been implemented. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Quentin Schulz <quentin.schulz@bootlin.com> Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
2018-05-08mmc: core: Rename ->reset() bus ops to ->hw_reset()Ulf Hansson5-10/+10
The bus ops ->reset() executes a full HW reset of the card, as the calling function mmc_hw_reset() also indicates by its name. Let's convert to follow the similar names, for both the bus ops callback and for the corresponding bus ops functions, as to clarify the purpose of code. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Quentin Schulz <quentin.schulz@bootlin.com> Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
2018-05-08mmc: core: Re-factor some code for SDIO re-initializationUlf Hansson1-20/+19
The mmc_sdio_init_card() function has a couple of callers. In the re-initialization cases, some additional reset commands are issued before mmc_sdio_init_card() is called. As these additional reset commands are the same, let's move these into a new static function, mmc_sdio_reinit_card() and call mmc_sdio_init_card() from there. In this way we avoid the open coding. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Quentin Schulz <quentin.schulz@bootlin.com> Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
2018-05-03Merge branch 'sdhci_omap' into nextUlf Hansson3-40/+215
Merge immutable branch for sdhci-omap to add UHS/HS200 mode support. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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