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2022-05-22net: fddi: skfp: smt: Remove extra parameters to vararg macroTom Rix
cppcheck reports [drivers/net/fddi/skfp/smt.c:750]: (warning) printf format string requires 0 parameters but 2 are given. DB_SBAN is a vararg macro, like DB_ESSN. Remove the extra args and the nl. Signed-off-by: Tom Rix <trix@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: ethernet: mtk_eth_soc: introduce support for mt7986 chipsetLorenzo Bianconi
Add support for mt7986-eth driver available on mt7986 soc. Tested-by: Sam Shih <sam.shih@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: ethernet: mtk_eth_soc: convert scratch_ring pointer to voidLorenzo Bianconi
Simplify the code converting scratch_ring pointer to void Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: ethernet: mtk_eth_soc: convert ring dma pointer to voidLorenzo Bianconi
Simplify the code converting {tx,rx} ring dma pointer to void Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: ethernet: mtk_eth_soc: introduce MTK_NETSYS_V2 supportLorenzo Bianconi
Introduce MTK_NETSYS_V2 support. MTK_NETSYS_V2 defines 32B TX/RX DMA descriptors. This is a preliminary patch to add mt7986 ethernet support. Tested-by: Sam Shih <sam.shih@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: ethernet: mtk_eth_soc: introduce device register mapLorenzo Bianconi
Introduce reg_map structure to add the capability to support different register definitions. Move register definitions in mtk_regmap structure. This is a preliminary patch to introduce mt7986 ethernet support. Tested-by: Sam Shih <sam.shih@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: ethernet: mtk_eth_soc: rely on rxd_size field in mtk_rx_alloc/mtk_rx_cleanLorenzo Bianconi
Remove mtk_rx_dma structure layout dependency in mtk_rx_alloc/mtk_rx_clean. Initialize to 0 rxd3 and rxd4 in mtk_rx_alloc. This is a preliminary patch to add mt7986 ethernet support. Tested-by: Sam Shih <sam.shih@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: ethernet: mtk_eth_soc: rely on txd_size field in mtk_poll_tx/mtk_poll_rxLorenzo Bianconi
This is a preliminary to ad mt7986 ethernet support. Tested-by: Sam Shih <sam.shih@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: ethernet: mtk_eth_soc: add rxd_size to mtk_soc_dataLorenzo Bianconi
Similar to tx counterpart, introduce rxd_size in mtk_soc_data data structure. This is a preliminary patch to add mt7986 ethernet support. Tested-by: Sam Shih <sam.shih@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: ethernet: mtk_eth_soc: rely on txd_size in txd_to_idxLorenzo Bianconi
This is a preliminary patch to add mt7986 ethernet support. Tested-by: Sam Shih <sam.shih@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: ethernet: mtk_eth_soc: rely on txd_size in mtk_desc_to_tx_bufLorenzo Bianconi
This is a preliminary patch to add mt7986 ethernet support. Tested-by: Sam Shih <sam.shih@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: ethernet: mtk_eth_soc: rely on txd_size in mtk_tx_alloc/mtk_tx_cleanLorenzo Bianconi
This is a preliminary patch to add mt7986 ethernet support. Tested-by: Sam Shih <sam.shih@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: ethernet: mtk_eth_soc: add txd_size to mtk_soc_dataLorenzo Bianconi
In order to remove mtk_tx_dma size dependency, introduce txd_size in mtk_soc_data data structure. Rely on txd_size in mtk_init_fq_dma() and mtk_dma_free() routines. This is a preliminary patch to add mt7986 ethernet support. Tested-by: Sam Shih <sam.shih@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: ethernet: mtk_eth_soc: move tx dma desc configuration in ↵Lorenzo Bianconi
mtk_tx_set_dma_desc Move tx dma descriptor configuration in mtk_tx_set_dma_desc routine. This is a preliminary patch to introduce mt7986 ethernet support since it relies on a different tx dma descriptor layout. Tested-by: Sam Shih <sam.shih@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: ethernet: mtk_eth_soc: rely on GFP_KERNEL for dma_alloc_coherent ↵Lorenzo Bianconi
whenever possible Rely on GFP_KERNEL for dma descriptors mappings in mtk_tx_alloc(), mtk_rx_alloc() and mtk_init_fq_dma() since they are run in non-irq context. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22eth: tg3: silence the GCC 12 array-bounds warningJakub Kicinski
GCC 12 currently generates a rather inconsistent warning: drivers/net/ethernet/broadcom/tg3.c:17795:51: warning: array subscript 5 is above array bounds of ‘struct tg3_napi[5]’ [-Warray-bounds] 17795 | struct tg3_napi *tnapi = &tp->napi[i]; | ~~~~~~~~^~~ i is guaranteed < tp->irq_max which in turn is either 1 or 5. There are more loops like this one in the driver, but strangely GCC 12 dislikes only this single one. Silence this silliness for now. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22eth: ice: silence the GCC 12 array-bounds warningJakub Kicinski
GCC 12 gets upset because driver allocates partial struct ice_aqc_sw_rules_elem buffers. The writes are within bounds. Silence these warnings for now, our build bot runs GCC 12 so we won't allow any new instances. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22eth: mtk_eth_soc: silence the GCC 12 array-bounds warningJakub Kicinski
GCC 12 gets upset because in mtk_foe_entry_commit_subflow() this driver allocates a partial structure. The writes are within bounds. Silence these warnings for now, our build bot runs GCC 12 so we won't allow any new instances. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22dpaa2-eth: unmap the SGT buffer before accessing its contentsIoana Ciornei
DMA unmap the Scatter/Gather table before going through the array to unmap and free each of the header and data chunks. This is so we do not touch the data between the dma_map and dma_unmap calls. Fixes: 3dc709e0cd47 ("dpaa2-eth: add support for software TSO") Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22dpaa2-eth: use the correct software annotation fieldIoana Ciornei
The incorrect software annotation field was being used, swa->sg.sgt_size instead of swa->tso.sgt_size, which meant that the SGT buffer was unmapped with a wrong size. This is also confirmed by the DMA API debug prints which showed the following: [ 38.962434] DMA-API: fsl_dpaa2_eth dpni.2: device driver frees DMA memory with different size [device address=0x0000fffffafba740] [map size=224 bytes] [unmap size=0 bytes] [ 38.980496] WARNING: CPU: 11 PID: 1131 at kernel/dma/debug.c:973 check_unmap+0x58c/0x9b0 [ 38.988586] Modules linked in: [ 38.991631] CPU: 11 PID: 1131 Comm: iperf3 Not tainted 5.18.0-rc7-00117-g59130eeb2b8f #1972 [ 38.999970] Hardware name: NXP Layerscape LX2160ARDB (DT) Fixes: 3dc709e0cd47 ("dpaa2-eth: add support for software TSO") Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22dpaa2-eth: retrieve the virtual address before dma_unmapIoana Ciornei
The TSO header was DMA unmapped before the virtual address was retrieved and then used to free the buffer. This meant that we were actually removing the DMA map and then trying to search for it to help in retrieving the virtual address. This lead to a invalid virtual address being used in the kfree call. Fix this by calling dpaa2_iova_to_virt() prior to the dma_unmap call. [ 487.231819] Unable to handle kernel paging request at virtual address fffffd9807000008 (...) [ 487.354061] Hardware name: SolidRun LX2160A Honeycomb (DT) [ 487.359535] pstate: a0400005 (NzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 487.366485] pc : kfree+0xac/0x304 [ 487.369799] lr : kfree+0x204/0x304 [ 487.373191] sp : ffff80000c4eb120 [ 487.376493] x29: ffff80000c4eb120 x28: ffff662240c46400 x27: 0000000000000001 [ 487.383621] x26: 0000000000000001 x25: ffff662246da0cc0 x24: ffff66224af78000 [ 487.390748] x23: ffffad184f4ce008 x22: ffffad1850185000 x21: ffffad1838d13cec [ 487.397874] x20: ffff6601c0000000 x19: fffffd9807000000 x18: 0000000000000000 [ 487.405000] x17: ffffb910cdc49000 x16: ffffad184d7d9080 x15: 0000000000004000 [ 487.412126] x14: 0000000000000008 x13: 000000000000ffff x12: 0000000000000000 [ 487.419252] x11: 0000000000000004 x10: 0000000000000001 x9 : ffffad184d7d927c [ 487.426379] x8 : 0000000000000000 x7 : 0000000ffffffd1d x6 : ffff662240a94900 [ 487.433505] x5 : 0000000000000003 x4 : 0000000000000009 x3 : ffffad184f4ce008 [ 487.440632] x2 : ffff662243eec000 x1 : 0000000100000100 x0 : fffffc0000000000 [ 487.447758] Call trace: [ 487.450194] kfree+0xac/0x304 [ 487.453151] dpaa2_eth_free_tx_fd.isra.0+0x33c/0x3e0 [fsl_dpaa2_eth] [ 487.459507] dpaa2_eth_tx_conf+0x100/0x2e0 [fsl_dpaa2_eth] [ 487.464989] dpaa2_eth_poll+0xdc/0x380 [fsl_dpaa2_eth] Fixes: 3dc709e0cd47 ("dpaa2-eth: add support for software TSO") Link: https://bugzilla.kernel.org/show_bug.cgi?id=215886 Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: mscc: ocelot: offload tc action "ok" using an empty action vectorVladimir Oltean
The "ok" tc action is useful when placed in front of a more generic filter to exclude some more specific rules from matching it. The ocelot switches can offload this tc action by creating an empty action vector (no _ENA fields set to 1). This makes sense for all of VCAP IS1, IS2 and ES0 (but not for PSFP). Add support for this action. Note that this makes the gact_drop_and_ok_test() selftest pass, where "action ok" is used in front of an "action drop" rule, both offloaded to VCAP IS2. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22Merge tag 'intel-pinctrl-v5.19-2' of ↵Linus Walleij
gitolite.kernel.org:pub/scm/linux/kernel/git/pinctrl/intel into devel intel-pinctrl for v5.19-2 * Fix immutable IRQ chip examples in the GPIO documentation * Make use of immutable IRQ chip in Intel pin control drivers * Add module alias for Intel Apollo Lake The following is an automated git shortlog grouped by driver: baytrail: - make irq_chip immutable broxton: - Add module alias for Intel Apollo Lake cherryview: - Use GPIO chip pointer in chv_gpio_irq_mask_unmask() - make irq_chip immutable Documentation: - gpio: Advertise irqd_to_hwirq() helper in the examples - gpio: Fix IRQ mask and unmask examples intel: - Fix kernel doc format, i.e. add return sections - Drop unused irqchip member in struct intel_pinctrl - make irq_chip immutable lynxpoint: - make irq_chip immutable
2022-05-22net: fec: Do proper error checking for enet_out clkUwe Kleine-König
An error code returned by devm_clk_get() might have other meanings than "This clock doesn't exist". So use devm_clk_get_optional() and handle all remaining errors as fatal. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22hinic: Avoid some over memory allocationChristophe JAILLET
'prod_idx' (atomic_t) is larger than 'shadow_idx' (u16), so some memory is over-allocated. Fixes: b15a9f37be2b ("net-next/hinic: Add wq") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: fec: Do proper error checking for optional clksUwe Kleine-König
An error code returned by devm_clk_get() might have other meanings than "This clock doesn't exist". So use devm_clk_get_optional() and handle all remaining errors as fatal. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: phy: DP83822: enable rgmii mode if phy_interface_is_rgmiiTommaso Merciai
RGMII mode can be enable from dp83822 straps, and also writing bit 9 of register 0x17 - RMII and Status Register (RCSR). When phy_interface_is_rgmii rgmii mode must be enabled, same for contrary, this prevents malconfigurations of hw straps References: - https://www.ti.com/lit/gpn/dp83822i p66 Signed-off-by: Tommaso Merciai <tommaso.merciai@amarulasolutions.com> Co-developed-by: Michael Trimarchi <michael@amarulasolutions.com> Suggested-by: Alberto Bianchi <alberto.bianchi@amarulasolutions.com> Tested-by: Tommaso Merciai <tommaso.merciai@amarulasolutions.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22pinctrl: berlin: bg4ct: Use devm_platform_*ioremap_resource() APIszhaoxiao
Use devm_platform_get_and_ioremap_resource() and devm_platform_ioremap_resource() APIs instead of their open coded analogues. Signed-off-by: zhaoxiao <zhaoxiao@uniontech.com> Link: https://lore.kernel.org/r/20220520052021.25631-1-zhaoxiao@uniontech.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2022-05-22random: check for signals after page of pool writesJason A. Donenfeld
get_random_bytes_user() checks for signals after producing a PAGE_SIZE worth of output, just like /dev/zero does. write_pool() is doing basically the same work (actually, slightly more expensive), and so should stop to check for signals in the same way. Let's also name it write_pool_user() to match get_random_bytes_user(), so this won't be misused in the future. Before this patch, massive writes to /dev/urandom would tie up the process for an extremely long time and make it unterminatable. After, it can be successfully interrupted. The following test program can be used to see this works as intended: #include <unistd.h> #include <fcntl.h> #include <signal.h> #include <stdio.h> static unsigned char x[~0U]; static void handle(int) { } int main(int argc, char *argv[]) { pid_t pid = getpid(), child; int fd; signal(SIGUSR1, handle); if (!(child = fork())) { for (;;) kill(pid, SIGUSR1); } fd = open("/dev/urandom", O_WRONLY); pause(); printf("interrupted after writing %zd bytes\n", write(fd, x, sizeof(x))); close(fd); kill(child, SIGTERM); return 0; } Result before: "interrupted after writing 2147479552 bytes" Result after: "interrupted after writing 4096 bytes" Cc: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2022-05-22gpio: sim: Use correct order for the parameters of devm_kcalloc()Christophe JAILLET
We should have 'n', then 'size', not the opposite. This is harmless because the 2 values are just multiplied, but having the correct order silence a (unpublished yet) smatch warning. Fixes: cb8c474e79be ("gpio: sim: new testing module") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2022-05-22net: ipa: use data space for command opcodesAlex Elder
The 64-bit data field in a transaction is not used for commands. And the opcode array is *only* used for commands. They're (currently) the same size; save a little space in the transaction structure by enclosing the two fields in a union. Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: ipa: remove command info poolAlex Elder
The ipa_cmd_info structure now contains only one field, and it's an enumerated type whose values all fit in 8 bits. Currently we'll never use more than 8 TREs in a command transaction, and we can represent that number of command opcodes in the same space as a 64 bit pointer to an ipa_cmd_info structure. Define IPA_COMMAND_TRANS_TRE_MAX as the maximum number of TREs that can be in a command transaction. Replace the info pointer in a transaction with a fixed-size array named cmd_opcode[] of that many bytes. Store the opcode in this array when adding a command TRE to a transaction, as was done previously for the info array. This makes the ipa_cmd_info unused, so get rid of it. When committing an immediate command transaction, use the channel's Boolean command flag to determine whether to fill in the opcode, which will be taken (as before) from the array in the transaction. This makes the command info pool unnecessary, so get rid of it. Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: ipa: remove command direction argumentAlex Elder
We no longer use the direction argument for gsi_trans_cmd_add(), so get rid of it in its definition, and in its seven callers. Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: ipa: get rid of ipa_cmd_info->directionAlex Elder
The direction field of the ipa_cmd_info structure is set, but never used. It seems it might have been used for the DMA_SHARED_MEM immediate command, but the DIRECTION flag is set based on the value of the passed-in direction flag there. Anyway, remove this unused field from the ipa_cmd_info structure. This is done as a separate patch to make it very obvious that it's not required. Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: ipa: count the number of modem TX endpointsAlex Elder
In ipa_endpoint_modem_exception_reset_all(), a high estimate was made of the number of endpoints that need their status register updated. We only used what was needed, so the high estimate didn't matter much. However the next few patches are going to limit the number of commands in a single transaction, and the overestimate would exceed that. So count the number of modem TX endpoints at initialization time, and use it in ipa_endpoint_modem_exception_reset_all(). Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: ipa: kill gsi_trans_commit_wait_timeout()Alex Elder
Since the beginning gsi_trans_commit_wait_timeout() has existed to provide a way to allow waiting a limited time for a transaction to complete. But that function has never been used. In fact, there is no use for this function, because a transaction committed to hardware should *always* complete. The only reason it might not complete is if there were a hardware failure, or perhaps a system configuration error. Furthermore, if a timeout ever did occur, the IPA hardware would be in an indeterminate state, from which there is no recovery. It would require some sort of complete IPA reset, and would require the participation of the modem, and at this time there is no such sequence defined. So get rid of the definition of gsi_trans_commit_wait_timeout(), and update a few comments accordingly. Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: ipa: specify RX aggregation time limit in config dataAlex Elder
Don't assume that a 500 microsecond time limit should be used for all receive endpoints that support aggregation. Instead, specify the time limit to use in the configuration data. Set a 500 microsecond limit for all existing RX endpoints, as before. Checking for overflow for the time limit field is a bit complicated. Rather than duplicate a lot of code in ipa_endpoint_data_valid_one(), call WARN() if any value is found to be too large when encoding it. Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: ipa: support hard aggregation limitsAlex Elder
Add a new flag for AP receive endpoints that indicates whether a "hard limit" is used as a criterion for closing aggregation. Add comments explaining the difference between "hard" and "soft" aggregation limits. Pass a flag to ipa_aggr_size_kb() so it computes the proper aggregation size value whether using hard or soft limits. Move that function earlier in "ipa_endpoint.c" so it can be used without a forward-reference. Update ipa_endpoint_data_valid_one() so it validates endpoints whose data indicate a hard aggregation limit is used, and so it reports set aggregation flags for endpoints without aggregation enabled. Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: ipa: make endpoint HOLB drop configurableAlex Elder
Add a new Boolean flag for RX endpoints defining whether HOLB drop is initially enabled or disabled for the endpoint. All existing AP endpoints should have HOLB drop disabled. Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22qed: fix typos in commentsJulia Lawall
Spelling mistakes (triple letters) in comments. Detected with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22nfp: flower: fix typo in commentJulia Lawall
Spelling mistake (triple letters) in comment. Detected with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr> Reviewed-by: Niklas Söderlund <niklas.soderlund@corigine.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: marvell: prestera: fix typo in commentJulia Lawall
Spelling mistake (triple letters) in comment. Detected with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22cirrus: cs89x0: fix typo in commentJulia Lawall
Spelling mistake (triple letters) in comment. Detected with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net/mlx5: fix typo in commentJulia Lawall
Spelling mistake (triple letters) in comment. Detected with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: mvpp2: fix typo in commentJulia Lawall
Spelling mistake (triple letters) in comment. Detected with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: sparx5: switchdev: fix typo in commentJulia Lawall
Spelling mistake (triple letters) in comment. Detected with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22hwmon: (aquacomputer_d5next) Fix an error handling path in aqc_probe()Christophe JAILLET
If no memory can be allocated, some resources still need to be released as already done in the other error handling paths. Fixes: 752b927951ea ("hwmon: (aquacomputer_d5next) Add support for Aquacomputer Octo") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: https://lore.kernel.org/r/be6b955d50de140fcc96bd116150b435021bf567.1653225250.git.christophe.jaillet@wanadoo.fr Reviewed-by: Aleksa Savic <savicaleksa83@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-05-22hwmon: (sl28cpld) Fix typo in commentJulia Lawall
Spelling mistake (triple letters) in comment. Detected with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr> Link: https://lore.kernel.org/r/20220521111145.81697-37-Julia.Lawall@inria.fr Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-05-22hwmon: (pmbus) Check PEC support before reading other registersAdam Wujek
Make sure that the support of PEC is determined before the read of other registers. Otherwise the validation of PEC can trigger an error on the read of STATUS_BYTE or STATUS_WORD registers. The problematic scenario is the following. A device with enabled PEC support is up and running and a kernel driver is loaded. Then the driver is unloaded (or device unbound), the HW device is reconfigured externally (e.g. by i2cset) to advertise itself as not supporting PEC. Without the move of the code, at the second load of the driver (or bind) the STATUS_BYTE or STATUS_WORD register is always read with PEC enabled, which is likely to cause a read error resulting with fail of a driver load (or bind). Signed-off-by: Adam Wujek <dev_public@wujek.eu> Link: https://lore.kernel.org/r/20220519233334.438621-1-dev_public@wujek.eu Fixes: 75d2b2b06bd84 ("hwmon: (pmbus) disable PEC if not enabled") Fixes: 4e5418f787ec5 ("hwmon: (pmbus_core) Check adapter PEC support") [groeck: Added Fixes: tags, dropped continuation line] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
2022-05-22hwmon: (dimmtemp) Fix bitmap handlingGuenter Roeck
Building arm:allmodconfig may fail with the following error. In function 'fortify_memcpy_chk', inlined from 'bitmap_copy' at include/linux/bitmap.h:261:2, inlined from 'bitmap_copy_clear_tail' at include/linux/bitmap.h:270:2, inlined from 'bitmap_from_u64' at include/linux/bitmap.h:622:2, inlined from 'check_populated_dimms' at drivers/hwmon/peci/dimmtemp.c:284:2: include/linux/fortify-string.h:344:25: error: call to '__write_overflow_field' declared with attribute warning: detected write beyond size of field (1st parameter) The problematic code is bitmap_from_u64(priv->dimm_mask, dimm_mask); dimm_mask is declared as u64, but the bitmap in priv->dimm_mask is only 24 bit wide. On 32-bit systems, this results in writes over the end of the bitmap. Fix the problem by using u32 instead of u64 for dimm_mask. This is currently sufficient, and a compile time check to ensure that the number of dimms does not exceed the bit map size is already in place. Fixes: 73bc1b885dae ("hwmon: peci: Add dimmtemp driver") Cc: Iwona Winiarska <iwona.winiarska@intel.com> Reviewed-by: Iwona Winiarska <iwona.winiarska@intel.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>