From 42ae6f1695beed57958e7a2554e6d52dddc56e43 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 16 May 2023 14:55:34 +0200 Subject: dmaengine: ste_dma40: Remove platform data The Ux500 is device tree-only since ages. Delete the platform data header and push it into or next to the driver instead. Drop the non-DT probe path since this will not happen. Signed-off-by: Linus Walleij Link: https://lore.kernel.org/r/20230417-ux500-dma40-cleanup-v3-4-60bfa6785968@linaro.org Signed-off-by: Vinod Koul --- include/linux/platform_data/dma-ste-dma40.h | 209 ---------------------------- 1 file changed, 209 deletions(-) delete mode 100644 include/linux/platform_data/dma-ste-dma40.h (limited to 'include/linux') diff --git a/include/linux/platform_data/dma-ste-dma40.h b/include/linux/platform_data/dma-ste-dma40.h deleted file mode 100644 index 10641633facc..000000000000 --- a/include/linux/platform_data/dma-ste-dma40.h +++ /dev/null @@ -1,209 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * Copyright (C) ST-Ericsson SA 2007-2010 - * Author: Per Forlin for ST-Ericsson - * Author: Jonas Aaberg for ST-Ericsson - */ - - -#ifndef STE_DMA40_H -#define STE_DMA40_H - -#include -#include -#include -#include - -/* - * Maxium size for a single dma descriptor - * Size is limited to 16 bits. - * Size is in the units of addr-widths (1,2,4,8 bytes) - * Larger transfers will be split up to multiple linked desc - */ -#define STEDMA40_MAX_SEG_SIZE 0xFFFF - -/* dev types for memcpy */ -#define STEDMA40_DEV_DST_MEMORY (-1) -#define STEDMA40_DEV_SRC_MEMORY (-1) - -enum stedma40_mode { - STEDMA40_MODE_LOGICAL = 0, - STEDMA40_MODE_PHYSICAL, - STEDMA40_MODE_OPERATION, -}; - -enum stedma40_mode_opt { - STEDMA40_PCHAN_BASIC_MODE = 0, - STEDMA40_LCHAN_SRC_LOG_DST_LOG = 0, - STEDMA40_PCHAN_MODULO_MODE, - STEDMA40_PCHAN_DOUBLE_DST_MODE, - STEDMA40_LCHAN_SRC_PHY_DST_LOG, - STEDMA40_LCHAN_SRC_LOG_DST_PHY, -}; - -#define STEDMA40_ESIZE_8_BIT 0x0 -#define STEDMA40_ESIZE_16_BIT 0x1 -#define STEDMA40_ESIZE_32_BIT 0x2 -#define STEDMA40_ESIZE_64_BIT 0x3 - -/* The value 4 indicates that PEN-reg shall be set to 0 */ -#define STEDMA40_PSIZE_PHY_1 0x4 -#define STEDMA40_PSIZE_PHY_2 0x0 -#define STEDMA40_PSIZE_PHY_4 0x1 -#define STEDMA40_PSIZE_PHY_8 0x2 -#define STEDMA40_PSIZE_PHY_16 0x3 - -/* - * The number of elements differ in logical and - * physical mode - */ -#define STEDMA40_PSIZE_LOG_1 STEDMA40_PSIZE_PHY_2 -#define STEDMA40_PSIZE_LOG_4 STEDMA40_PSIZE_PHY_4 -#define STEDMA40_PSIZE_LOG_8 STEDMA40_PSIZE_PHY_8 -#define STEDMA40_PSIZE_LOG_16 STEDMA40_PSIZE_PHY_16 - -/* Maximum number of possible physical channels */ -#define STEDMA40_MAX_PHYS 32 - -enum stedma40_flow_ctrl { - STEDMA40_NO_FLOW_CTRL, - STEDMA40_FLOW_CTRL, -}; - -/** - * struct stedma40_half_channel_info - dst/src channel configuration - * - * @big_endian: true if the src/dst should be read as big endian - * @data_width: Data width of the src/dst hardware - * @p_size: Burst size - * @flow_ctrl: Flow control on/off. - */ -struct stedma40_half_channel_info { - bool big_endian; - enum dma_slave_buswidth data_width; - int psize; - enum stedma40_flow_ctrl flow_ctrl; -}; - -/** - * struct stedma40_chan_cfg - Structure to be filled by client drivers. - * - * @dir: MEM 2 MEM, PERIPH 2 MEM , MEM 2 PERIPH, PERIPH 2 PERIPH - * @high_priority: true if high-priority - * @realtime: true if realtime mode is to be enabled. Only available on DMA40 - * version 3+, i.e DB8500v2+ - * @mode: channel mode: physical, logical, or operation - * @mode_opt: options for the chosen channel mode - * @dev_type: src/dst device type (driver uses dir to figure out which) - * @src_info: Parameters for dst half channel - * @dst_info: Parameters for dst half channel - * @use_fixed_channel: if true, use physical channel specified by phy_channel - * @phy_channel: physical channel to use, only if use_fixed_channel is true - * - * This structure has to be filled by the client drivers. - * It is recommended to do all dma configurations for clients in the machine. - * - */ -struct stedma40_chan_cfg { - enum dma_transfer_direction dir; - bool high_priority; - bool realtime; - enum stedma40_mode mode; - enum stedma40_mode_opt mode_opt; - int dev_type; - struct stedma40_half_channel_info src_info; - struct stedma40_half_channel_info dst_info; - - bool use_fixed_channel; - int phy_channel; -}; - -/** - * struct stedma40_platform_data - Configuration struct for the dma device. - * - * @dev_tx: mapping between destination event line and io address - * @dev_rx: mapping between source event line and io address - * @disabled_channels: A vector, ending with -1, that marks physical channels - * that are for different reasons not available for the driver. - * @soft_lli_chans: A vector, that marks physical channels will use LLI by SW - * which avoids HW bug that exists in some versions of the controller. - * SoftLLI introduces relink overhead that could impact performace for - * certain use cases. - * @num_of_soft_lli_chans: The number of channels that needs to be configured - * to use SoftLLI. - * @use_esram_lcla: flag for mapping the lcla into esram region - * @num_of_memcpy_chans: The number of channels reserved for memcpy. - * @num_of_phy_chans: The number of physical channels implemented in HW. - * 0 means reading the number of channels from DMA HW but this is only valid - * for 'multiple of 4' channels, like 8. - */ -struct stedma40_platform_data { - int disabled_channels[STEDMA40_MAX_PHYS]; - int *soft_lli_chans; - int num_of_soft_lli_chans; - bool use_esram_lcla; - int num_of_memcpy_chans; - int num_of_phy_chans; -}; - -#ifdef CONFIG_STE_DMA40 - -/** - * stedma40_filter() - Provides stedma40_chan_cfg to the - * ste_dma40 dma driver via the dmaengine framework. - * does some checking of what's provided. - * - * Never directly called by client. It used by dmaengine. - * @chan: dmaengine handle. - * @data: Must be of type: struct stedma40_chan_cfg and is - * the configuration of the framework. - * - * - */ - -bool stedma40_filter(struct dma_chan *chan, void *data); - -/** - * stedma40_slave_mem() - Transfers a raw data buffer to or from a slave - * (=device) - * - * @chan: dmaengine handle - * @addr: source or destination physicall address. - * @size: bytes to transfer - * @direction: direction of transfer - * @flags: is actually enum dma_ctrl_flags. See dmaengine.h - */ - -static inline struct -dma_async_tx_descriptor *stedma40_slave_mem(struct dma_chan *chan, - dma_addr_t addr, - unsigned int size, - enum dma_transfer_direction direction, - unsigned long flags) -{ - struct scatterlist sg; - sg_init_table(&sg, 1); - sg.dma_address = addr; - sg.length = size; - - return dmaengine_prep_slave_sg(chan, &sg, 1, direction, flags); -} - -#else -static inline bool stedma40_filter(struct dma_chan *chan, void *data) -{ - return false; -} - -static inline struct -dma_async_tx_descriptor *stedma40_slave_mem(struct dma_chan *chan, - dma_addr_t addr, - unsigned int size, - enum dma_transfer_direction direction, - unsigned long flags) -{ - return NULL; -} -#endif - -#endif -- cgit v1.2.3 From 91694772067203a554354a08bfad294b81fff5ad Mon Sep 17 00:00:00 2001 From: Chunfeng Yun Date: Sat, 13 May 2023 17:22:17 +0800 Subject: phy: core: add debugfs files Add a debugfs root for phy class, and create a debugfs directory under the root when create phy, then phy drivers can add debugfs files. Signed-off-by: Chunfeng Yun Link: https://lore.kernel.org/r/20230513092218.21139-1-chunfeng.yun@mediatek.com Signed-off-by: Vinod Koul --- include/linux/phy/phy.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h index 3a570bc59fc7..f6d607ef0e80 100644 --- a/include/linux/phy/phy.h +++ b/include/linux/phy/phy.h @@ -148,6 +148,7 @@ struct phy_attrs { * @power_count: used to protect when the PHY is used by multiple consumers * @attrs: used to specify PHY specific attributes * @pwr: power regulator associated with the phy + * @debugfs: debugfs directory */ struct phy { struct device dev; @@ -158,6 +159,7 @@ struct phy { int power_count; struct phy_attrs attrs; struct regulator *pwr; + struct dentry *debugfs; }; /** -- cgit v1.2.3 From 487517557f97809c38ff99f726ec991ab6aa8a73 Mon Sep 17 00:00:00 2001 From: Cai Huoqing Date: Sat, 20 May 2023 13:08:49 +0800 Subject: dmaengine: dw-edma: Rename dw_edma_core_ops structure to dw_edma_plat_ops The dw_edma_core_ops structure contains a set of the operations: device IRQ numbers getter, CPU/PCI address translation. Based on the functions semantics the structure name "dw_edma_plat_ops" looks more descriptive since indeed the operations are platform-specific. The "dw_edma_core_ops" name shall be used for a structure with the IP-core specific set of callbacks in order to abstract out DW eDMA and DW HDMA setups. Such structure will be added in one of the next commit in the framework of the set of changes adding the DW HDMA device support. Anyway the renaming was necessary to distinguish two types of the implementation callbacks: 1. DW eDMA/hDMA IP-core specific operations: device-specific CSR setups in one or another aspect of the DMA-engine initialization. 2. DW eDMA/hDMA platform specific operations: the DMA device environment configs like IRQs, address translation, etc. Signed-off-by: Cai Huoqing Reviewed-by: Serge Semin Reviewed-by: Manivannan Sadhasivam Tested-by: Serge Semin Link: https://lore.kernel.org/r/20230520050854.73160-2-cai.huoqing@linux.dev Signed-off-by: Vinod Koul --- include/linux/dma/edma.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/dma/edma.h b/include/linux/dma/edma.h index d2638d9259dc..ed401c965a87 100644 --- a/include/linux/dma/edma.h +++ b/include/linux/dma/edma.h @@ -40,7 +40,7 @@ struct dw_edma_region { * iATU windows. That will be done by the controller * automatically. */ -struct dw_edma_core_ops { +struct dw_edma_plat_ops { int (*irq_vector)(struct device *dev, unsigned int nr); u64 (*pci_address)(struct device *dev, phys_addr_t cpu_addr); }; @@ -80,7 +80,7 @@ enum dw_edma_chip_flags { struct dw_edma_chip { struct device *dev; int nr_irqs; - const struct dw_edma_core_ops *ops; + const struct dw_edma_plat_ops *ops; u32 flags; void __iomem *reg_base; -- cgit v1.2.3 From e74c39573d35e9ac441090ff8183aa3dc2540649 Mon Sep 17 00:00:00 2001 From: Cai Huoqing Date: Sat, 20 May 2023 13:08:51 +0800 Subject: dmaengine: dw-edma: Add support for native HDMA Add support for HDMA NATIVE, as long the IP design has set the compatible register map parameter-HDMA_NATIVE, which allows compatibility for native HDMA register configuration. The HDMA Hyper-DMA IP is an enhancement of the eDMA embedded-DMA IP. And the native HDMA registers are different from eDMA, so this patch add support for HDMA NATIVE mode. HDMA write and read channels operate independently to maximize the performance of the HDMA read and write data transfer over the link When you configure the HDMA with multiple read channels, then it uses a round robin (RR) arbitration scheme to select the next read channel to be serviced.The same applies when you have multiple write channels. The native HDMA driver also supports a maximum of 16 independent channels (8 write + 8 read), which can run simultaneously. Both SAR (Source Address Register) and DAR (Destination Address Register) are aligned to byte. Signed-off-by: Cai Huoqing Reviewed-by: Serge Semin Reviewed-by: Manivannan Sadhasivam Tested-by: Serge Semin Link: https://lore.kernel.org/r/20230520050854.73160-4-cai.huoqing@linux.dev Signed-off-by: Vinod Koul --- include/linux/dma/edma.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/dma/edma.h b/include/linux/dma/edma.h index ed401c965a87..3080747689f6 100644 --- a/include/linux/dma/edma.h +++ b/include/linux/dma/edma.h @@ -48,7 +48,8 @@ struct dw_edma_plat_ops { enum dw_edma_map_format { EDMA_MF_EDMA_LEGACY = 0x0, EDMA_MF_EDMA_UNROLL = 0x1, - EDMA_MF_HDMA_COMPAT = 0x5 + EDMA_MF_HDMA_COMPAT = 0x5, + EDMA_MF_HDMA_NATIVE = 0x7, }; /** -- cgit v1.2.3 From a8ac2961148e8c720dc760f2e06627cd5c55a154 Mon Sep 17 00:00:00 2001 From: Sergey Shtylyov Date: Thu, 1 Jun 2023 23:22:17 +0300 Subject: sh: Avoid using IRQ0 on SH3 and SH4 IRQ0 is no longer returned by platform_get_irq() and its ilk -- they now return -EINVAL instead. However, the kernel code supporting SH3/4-based SoCs still maps the IRQ #s starting at 0 -- modify that code to start the IRQ #s from 16 instead. The patch should mostly affect the AP-SH4A-3A/AP-SH4AD-0A boards as they indeed are using IRQ0 for the SMSC911x compatible Ethernet chip. Fixes: ce753ad1549c ("platform: finally disallow IRQ0 in platform_get_irq() and its ilk") Signed-off-by: Sergey Shtylyov Reviewed-by: Geert Uytterhoeven Tested-by: Geert Uytterhoeven Reviewed-by: John Paul Adrian Glaubitz Tested-by: John Paul Adrian Glaubitz Link: https://lore.kernel.org/r/71105dbf-cdb0-72e1-f9eb-eeda8e321696@omp.ru Signed-off-by: John Paul Adrian Glaubitz --- include/linux/sh_intc.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/sh_intc.h b/include/linux/sh_intc.h index 37ad81058d6a..27ae79191bdc 100644 --- a/include/linux/sh_intc.h +++ b/include/linux/sh_intc.h @@ -13,9 +13,9 @@ /* * Convert back and forth between INTEVT and IRQ values. */ -#ifdef CONFIG_CPU_HAS_INTEVT -#define evt2irq(evt) (((evt) >> 5) - 16) -#define irq2evt(irq) (((irq) + 16) << 5) +#ifdef CONFIG_CPU_HAS_INTEVT /* Avoid IRQ0 (invalid for platform devices) */ +#define evt2irq(evt) ((evt) >> 5) +#define irq2evt(irq) ((irq) << 5) #else #define evt2irq(evt) (evt) #define irq2evt(irq) (irq) -- cgit v1.2.3 From 4dd595c34c4bb22c16a76206a18c13e4e194335d Mon Sep 17 00:00:00 2001 From: Sohil Mehta Date: Wed, 21 Jun 2023 22:36:00 +0000 Subject: syscalls: Remove file path comments from headers Source file locations for syscall definitions can change over a period of time. File paths in comments get stale and are hard to maintain long term. Also, their usefulness is questionable since it would be easier to locate a syscall definition using the SYSCALL_DEFINEx() macro. Remove all source file path comments from the syscall headers. Also, equalize the uneven line spacing (some of which is introduced due to the deletions). Signed-off-by: Sohil Mehta Signed-off-by: Arnd Bergmann --- include/linux/compat.h | 82 +++------------------------ include/linux/syscalls.h | 140 +++++------------------------------------------ 2 files changed, 24 insertions(+), 198 deletions(-) (limited to 'include/linux') diff --git a/include/linux/compat.h b/include/linux/compat.h index 44b1736c95b5..1cfa4f0f490a 100644 --- a/include/linux/compat.h +++ b/include/linux/compat.h @@ -581,11 +581,7 @@ asmlinkage long compat_sys_io_pgetevents_time64(compat_aio_context_t ctx_id, struct io_event __user *events, struct __kernel_timespec __user *timeout, const struct __compat_aio_sigset __user *usig); - -/* fs/cookies.c */ asmlinkage long compat_sys_lookup_dcookie(u32, u32, char __user *, compat_size_t); - -/* fs/eventpoll.c */ asmlinkage long compat_sys_epoll_pwait(int epfd, struct epoll_event __user *events, int maxevents, int timeout, @@ -597,18 +593,12 @@ asmlinkage long compat_sys_epoll_pwait2(int epfd, const struct __kernel_timespec __user *timeout, const compat_sigset_t __user *sigmask, compat_size_t sigsetsize); - -/* fs/fcntl.c */ asmlinkage long compat_sys_fcntl(unsigned int fd, unsigned int cmd, compat_ulong_t arg); asmlinkage long compat_sys_fcntl64(unsigned int fd, unsigned int cmd, compat_ulong_t arg); - -/* fs/ioctl.c */ asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd, compat_ulong_t arg); - -/* fs/open.c */ asmlinkage long compat_sys_statfs(const char __user *pathname, struct compat_statfs __user *buf); asmlinkage long compat_sys_statfs64(const char __user *pathname, @@ -623,13 +613,9 @@ asmlinkage long compat_sys_ftruncate(unsigned int, compat_ulong_t); /* No generic prototype for truncate64, ftruncate64, fallocate */ asmlinkage long compat_sys_openat(int dfd, const char __user *filename, int flags, umode_t mode); - -/* fs/readdir.c */ asmlinkage long compat_sys_getdents(unsigned int fd, struct compat_linux_dirent __user *dirent, unsigned int count); - -/* fs/read_write.c */ asmlinkage long compat_sys_lseek(unsigned int, compat_off_t, unsigned int); /* No generic prototype for pread64 and pwrite64 */ asmlinkage ssize_t compat_sys_preadv(compat_ulong_t fd, @@ -649,14 +635,10 @@ asmlinkage long compat_sys_pwritev64(unsigned long fd, const struct iovec __user *vec, unsigned long vlen, loff_t pos); #endif - -/* fs/sendfile.c */ asmlinkage long compat_sys_sendfile(int out_fd, int in_fd, compat_off_t __user *offset, compat_size_t count); asmlinkage long compat_sys_sendfile64(int out_fd, int in_fd, compat_loff_t __user *offset, compat_size_t count); - -/* fs/select.c */ asmlinkage long compat_sys_pselect6_time32(int n, compat_ulong_t __user *inp, compat_ulong_t __user *outp, compat_ulong_t __user *exp, @@ -677,68 +659,45 @@ asmlinkage long compat_sys_ppoll_time64(struct pollfd __user *ufds, struct __kernel_timespec __user *tsp, const compat_sigset_t __user *sigmask, compat_size_t sigsetsize); - -/* fs/signalfd.c */ asmlinkage long compat_sys_signalfd4(int ufd, const compat_sigset_t __user *sigmask, compat_size_t sigsetsize, int flags); - -/* fs/stat.c */ asmlinkage long compat_sys_newfstatat(unsigned int dfd, const char __user *filename, struct compat_stat __user *statbuf, int flag); asmlinkage long compat_sys_newfstat(unsigned int fd, struct compat_stat __user *statbuf); - -/* fs/sync.c: No generic prototype for sync_file_range and sync_file_range2 */ - -/* kernel/exit.c */ +/* No generic prototype for sync_file_range and sync_file_range2 */ asmlinkage long compat_sys_waitid(int, compat_pid_t, struct compat_siginfo __user *, int, struct compat_rusage __user *); - - - -/* kernel/futex.c */ asmlinkage long compat_sys_set_robust_list(struct compat_robust_list_head __user *head, compat_size_t len); asmlinkage long compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr, compat_size_t __user *len_ptr); - -/* kernel/itimer.c */ asmlinkage long compat_sys_getitimer(int which, struct old_itimerval32 __user *it); asmlinkage long compat_sys_setitimer(int which, struct old_itimerval32 __user *in, struct old_itimerval32 __user *out); - -/* kernel/kexec.c */ asmlinkage long compat_sys_kexec_load(compat_ulong_t entry, compat_ulong_t nr_segments, struct compat_kexec_segment __user *, compat_ulong_t flags); - -/* kernel/posix-timers.c */ asmlinkage long compat_sys_timer_create(clockid_t which_clock, struct compat_sigevent __user *timer_event_spec, timer_t __user *created_timer_id); - -/* kernel/ptrace.c */ asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid, compat_long_t addr, compat_long_t data); - -/* kernel/sched/core.c */ asmlinkage long compat_sys_sched_setaffinity(compat_pid_t pid, unsigned int len, compat_ulong_t __user *user_mask_ptr); asmlinkage long compat_sys_sched_getaffinity(compat_pid_t pid, unsigned int len, compat_ulong_t __user *user_mask_ptr); - -/* kernel/signal.c */ asmlinkage long compat_sys_sigaltstack(const compat_stack_t __user *uss_ptr, compat_stack_t __user *uoss_ptr); asmlinkage long compat_sys_rt_sigsuspend(compat_sigset_t __user *unewset, @@ -763,25 +722,17 @@ asmlinkage long compat_sys_rt_sigtimedwait_time64(compat_sigset_t __user *uthese asmlinkage long compat_sys_rt_sigqueueinfo(compat_pid_t pid, int sig, struct compat_siginfo __user *uinfo); /* No generic prototype for rt_sigreturn */ - -/* kernel/sys.c */ asmlinkage long compat_sys_times(struct compat_tms __user *tbuf); asmlinkage long compat_sys_getrlimit(unsigned int resource, struct compat_rlimit __user *rlim); asmlinkage long compat_sys_setrlimit(unsigned int resource, struct compat_rlimit __user *rlim); asmlinkage long compat_sys_getrusage(int who, struct compat_rusage __user *ru); - -/* kernel/time.c */ asmlinkage long compat_sys_gettimeofday(struct old_timeval32 __user *tv, struct timezone __user *tz); asmlinkage long compat_sys_settimeofday(struct old_timeval32 __user *tv, struct timezone __user *tz); - -/* kernel/timer.c */ asmlinkage long compat_sys_sysinfo(struct compat_sysinfo __user *info); - -/* ipc/mqueue.c */ asmlinkage long compat_sys_mq_open(const char __user *u_name, int oflag, compat_mode_t mode, struct compat_mq_attr __user *u_attr); @@ -790,22 +741,14 @@ asmlinkage long compat_sys_mq_notify(mqd_t mqdes, asmlinkage long compat_sys_mq_getsetattr(mqd_t mqdes, const struct compat_mq_attr __user *u_mqstat, struct compat_mq_attr __user *u_omqstat); - -/* ipc/msg.c */ asmlinkage long compat_sys_msgctl(int first, int second, void __user *uptr); asmlinkage long compat_sys_msgrcv(int msqid, compat_uptr_t msgp, compat_ssize_t msgsz, compat_long_t msgtyp, int msgflg); asmlinkage long compat_sys_msgsnd(int msqid, compat_uptr_t msgp, compat_ssize_t msgsz, int msgflg); - -/* ipc/sem.c */ asmlinkage long compat_sys_semctl(int semid, int semnum, int cmd, int arg); - -/* ipc/shm.c */ asmlinkage long compat_sys_shmctl(int first, int second, void __user *uptr); asmlinkage long compat_sys_shmat(int shmid, compat_uptr_t shmaddr, int shmflg); - -/* net/socket.c */ asmlinkage long compat_sys_recvfrom(int fd, void __user *buf, compat_size_t len, unsigned flags, struct sockaddr __user *addr, int __user *addrlen); @@ -813,20 +756,13 @@ asmlinkage long compat_sys_sendmsg(int fd, struct compat_msghdr __user *msg, unsigned flags); asmlinkage long compat_sys_recvmsg(int fd, struct compat_msghdr __user *msg, unsigned int flags); - -/* mm/filemap.c: No generic prototype for readahead */ - -/* security/keys/keyctl.c */ +/* No generic prototype for readahead */ asmlinkage long compat_sys_keyctl(u32 option, u32 arg2, u32 arg3, u32 arg4, u32 arg5); - -/* arch/example/kernel/sys_example.c */ asmlinkage long compat_sys_execve(const char __user *filename, const compat_uptr_t __user *argv, const compat_uptr_t __user *envp); - -/* mm/fadvise.c: No generic prototype for fadvise64_64 */ - -/* mm/, CONFIG_MMU only */ +/* No generic prototype for fadvise64_64 */ +/* CONFIG_MMU only */ asmlinkage long compat_sys_rt_tgsigqueueinfo(compat_pid_t tgid, compat_pid_t pid, int sig, struct compat_siginfo __user *uinfo); @@ -896,18 +832,18 @@ asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u32); asmlinkage long compat_sys_recv(int fd, void __user *buf, compat_size_t len, unsigned flags); -/* obsolete: fs/readdir.c */ +/* obsolete */ asmlinkage long compat_sys_old_readdir(unsigned int fd, struct compat_old_linux_dirent __user *, unsigned int count); -/* obsolete: fs/select.c */ +/* obsolete */ asmlinkage long compat_sys_old_select(struct compat_sel_arg_struct __user *arg); -/* obsolete: ipc */ +/* obsolete */ asmlinkage long compat_sys_ipc(u32, int, int, u32, compat_uptr_t, u32); -/* obsolete: kernel/signal.c */ +/* obsolete */ #ifdef __ARCH_WANT_SYS_SIGPENDING asmlinkage long compat_sys_sigpending(compat_old_sigset_t __user *set); #endif @@ -922,7 +858,7 @@ asmlinkage long compat_sys_sigaction(int sig, struct compat_old_sigaction __user *oact); #endif -/* obsolete: net/socket.c */ +/* obsolete */ asmlinkage long compat_sys_socketcall(int call, u32 __user *args); #ifdef __ARCH_WANT_COMPAT_TRUNCATE64 diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 33a0ee3bcb2e..8c37cf91c12d 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -346,8 +346,6 @@ asmlinkage long sys_io_uring_enter(unsigned int fd, u32 to_submit, const void __user *argp, size_t argsz); asmlinkage long sys_io_uring_register(unsigned int fd, unsigned int op, void __user *arg, unsigned int nr_args); - -/* fs/xattr.c */ asmlinkage long sys_setxattr(const char __user *path, const char __user *name, const void __user *value, size_t size, int flags); asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name, @@ -370,17 +368,9 @@ asmlinkage long sys_removexattr(const char __user *path, asmlinkage long sys_lremovexattr(const char __user *path, const char __user *name); asmlinkage long sys_fremovexattr(int fd, const char __user *name); - -/* fs/dcache.c */ asmlinkage long sys_getcwd(char __user *buf, unsigned long size); - -/* fs/cookies.c */ asmlinkage long sys_lookup_dcookie(u64 cookie64, char __user *buf, size_t len); - -/* fs/eventfd.c */ asmlinkage long sys_eventfd2(unsigned int count, int flags); - -/* fs/eventpoll.c */ asmlinkage long sys_epoll_create1(int flags); asmlinkage long sys_epoll_ctl(int epfd, int op, int fd, struct epoll_event __user *event); @@ -393,8 +383,6 @@ asmlinkage long sys_epoll_pwait2(int epfd, struct epoll_event __user *events, const struct __kernel_timespec __user *timeout, const sigset_t __user *sigmask, size_t sigsetsize); - -/* fs/fcntl.c */ asmlinkage long sys_dup(unsigned int fildes); asmlinkage long sys_dup3(unsigned int oldfd, unsigned int newfd, int flags); asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg); @@ -402,25 +390,15 @@ asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg); asmlinkage long sys_fcntl64(unsigned int fd, unsigned int cmd, unsigned long arg); #endif - -/* fs/inotify_user.c */ asmlinkage long sys_inotify_init1(int flags); asmlinkage long sys_inotify_add_watch(int fd, const char __user *path, u32 mask); asmlinkage long sys_inotify_rm_watch(int fd, __s32 wd); - -/* fs/ioctl.c */ asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg); - -/* fs/ioprio.c */ asmlinkage long sys_ioprio_set(int which, int who, int ioprio); asmlinkage long sys_ioprio_get(int which, int who); - -/* fs/locks.c */ asmlinkage long sys_flock(unsigned int fd, unsigned int cmd); - -/* fs/namei.c */ asmlinkage long sys_mknodat(int dfd, const char __user * filename, umode_t mode, unsigned dev); asmlinkage long sys_mkdirat(int dfd, const char __user * pathname, umode_t mode); @@ -431,18 +409,12 @@ asmlinkage long sys_linkat(int olddfd, const char __user *oldname, int newdfd, const char __user *newname, int flags); asmlinkage long sys_renameat(int olddfd, const char __user * oldname, int newdfd, const char __user * newname); - -/* fs/namespace.c */ asmlinkage long sys_umount(char __user *name, int flags); asmlinkage long sys_mount(char __user *dev_name, char __user *dir_name, char __user *type, unsigned long flags, void __user *data); asmlinkage long sys_pivot_root(const char __user *new_root, const char __user *put_old); - -/* fs/nfsctl.c */ - -/* fs/open.c */ asmlinkage long sys_statfs(const char __user * path, struct statfs __user *buf); asmlinkage long sys_statfs64(const char __user *path, size_t sz, @@ -477,22 +449,14 @@ asmlinkage long sys_close(unsigned int fd); asmlinkage long sys_close_range(unsigned int fd, unsigned int max_fd, unsigned int flags); asmlinkage long sys_vhangup(void); - -/* fs/pipe.c */ asmlinkage long sys_pipe2(int __user *fildes, int flags); - -/* fs/quota.c */ asmlinkage long sys_quotactl(unsigned int cmd, const char __user *special, qid_t id, void __user *addr); asmlinkage long sys_quotactl_fd(unsigned int fd, unsigned int cmd, qid_t id, void __user *addr); - -/* fs/readdir.c */ asmlinkage long sys_getdents64(unsigned int fd, struct linux_dirent64 __user *dirent, unsigned int count); - -/* fs/read_write.c */ asmlinkage long sys_llseek(unsigned int fd, unsigned long offset_high, unsigned long offset_low, loff_t __user *result, unsigned int whence); @@ -515,12 +479,8 @@ asmlinkage long sys_preadv(unsigned long fd, const struct iovec __user *vec, unsigned long vlen, unsigned long pos_l, unsigned long pos_h); asmlinkage long sys_pwritev(unsigned long fd, const struct iovec __user *vec, unsigned long vlen, unsigned long pos_l, unsigned long pos_h); - -/* fs/sendfile.c */ asmlinkage long sys_sendfile64(int out_fd, int in_fd, loff_t __user *offset, size_t count); - -/* fs/select.c */ asmlinkage long sys_pselect6(int, fd_set __user *, fd_set __user *, fd_set __user *, struct __kernel_timespec __user *, void __user *); @@ -533,19 +493,13 @@ asmlinkage long sys_ppoll(struct pollfd __user *, unsigned int, asmlinkage long sys_ppoll_time32(struct pollfd __user *, unsigned int, struct old_timespec32 __user *, const sigset_t __user *, size_t); - -/* fs/signalfd.c */ asmlinkage long sys_signalfd4(int ufd, sigset_t __user *user_mask, size_t sizemask, int flags); - -/* fs/splice.c */ asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov, unsigned long nr_segs, unsigned int flags); asmlinkage long sys_splice(int fd_in, loff_t __user *off_in, int fd_out, loff_t __user *off_out, size_t len, unsigned int flags); asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags); - -/* fs/stat.c */ asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf, int bufsiz); asmlinkage long sys_newfstatat(int dfd, const char __user *filename, @@ -556,8 +510,6 @@ asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf); asmlinkage long sys_fstatat64(int dfd, const char __user *filename, struct stat64 __user *statbuf, int flag); #endif - -/* fs/sync.c */ asmlinkage long sys_sync(void); asmlinkage long sys_fsync(unsigned int fd); asmlinkage long sys_fdatasync(unsigned int fd); @@ -565,8 +517,6 @@ asmlinkage long sys_sync_file_range2(int fd, unsigned int flags, loff_t offset, loff_t nbytes); asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes, unsigned int flags); - -/* fs/timerfd.c */ asmlinkage long sys_timerfd_create(int clockid, int flags); asmlinkage long sys_timerfd_settime(int ufd, int flags, const struct __kernel_itimerspec __user *utmr, @@ -577,39 +527,25 @@ asmlinkage long sys_timerfd_gettime32(int ufd, asmlinkage long sys_timerfd_settime32(int ufd, int flags, const struct old_itimerspec32 __user *utmr, struct old_itimerspec32 __user *otmr); - -/* fs/utimes.c */ asmlinkage long sys_utimensat(int dfd, const char __user *filename, struct __kernel_timespec __user *utimes, int flags); asmlinkage long sys_utimensat_time32(unsigned int dfd, const char __user *filename, struct old_timespec32 __user *t, int flags); - -/* kernel/acct.c */ asmlinkage long sys_acct(const char __user *name); - -/* kernel/capability.c */ asmlinkage long sys_capget(cap_user_header_t header, cap_user_data_t dataptr); asmlinkage long sys_capset(cap_user_header_t header, const cap_user_data_t data); - -/* kernel/exec_domain.c */ asmlinkage long sys_personality(unsigned int personality); - -/* kernel/exit.c */ asmlinkage long sys_exit(int error_code); asmlinkage long sys_exit_group(int error_code); asmlinkage long sys_waitid(int which, pid_t pid, struct siginfo __user *infop, int options, struct rusage __user *ru); - -/* kernel/fork.c */ asmlinkage long sys_set_tid_address(int __user *tidptr); asmlinkage long sys_unshare(unsigned long unshare_flags); - -/* kernel/futex/syscalls.c */ asmlinkage long sys_futex(u32 __user *uaddr, int op, u32 val, const struct __kernel_timespec __user *utime, u32 __user *uaddr2, u32 val3); @@ -625,31 +561,21 @@ asmlinkage long sys_set_robust_list(struct robust_list_head __user *head, asmlinkage long sys_futex_waitv(struct futex_waitv *waiters, unsigned int nr_futexes, unsigned int flags, struct __kernel_timespec __user *timeout, clockid_t clockid); - -/* kernel/hrtimer.c */ asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp, struct __kernel_timespec __user *rmtp); asmlinkage long sys_nanosleep_time32(struct old_timespec32 __user *rqtp, struct old_timespec32 __user *rmtp); - -/* kernel/itimer.c */ asmlinkage long sys_getitimer(int which, struct __kernel_old_itimerval __user *value); asmlinkage long sys_setitimer(int which, struct __kernel_old_itimerval __user *value, struct __kernel_old_itimerval __user *ovalue); - -/* kernel/kexec.c */ asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments, struct kexec_segment __user *segments, unsigned long flags); - -/* kernel/module.c */ asmlinkage long sys_init_module(void __user *umod, unsigned long len, const char __user *uargs); asmlinkage long sys_delete_module(const char __user *name_user, unsigned int flags); - -/* kernel/posix-timers.c */ asmlinkage long sys_timer_create(clockid_t which_clock, struct sigevent __user *timer_event_spec, timer_t __user * created_timer_id); @@ -683,15 +609,9 @@ asmlinkage long sys_clock_getres_time32(clockid_t which_clock, asmlinkage long sys_clock_nanosleep_time32(clockid_t which_clock, int flags, struct old_timespec32 __user *rqtp, struct old_timespec32 __user *rmtp); - -/* kernel/printk.c */ asmlinkage long sys_syslog(int type, char __user *buf, int len); - -/* kernel/ptrace.c */ asmlinkage long sys_ptrace(long request, long pid, unsigned long addr, unsigned long data); -/* kernel/sched/core.c */ - asmlinkage long sys_sched_setparam(pid_t pid, struct sched_param __user *param); asmlinkage long sys_sched_setscheduler(pid_t pid, int policy, @@ -710,8 +630,6 @@ asmlinkage long sys_sched_rr_get_interval(pid_t pid, struct __kernel_timespec __user *interval); asmlinkage long sys_sched_rr_get_interval_time32(pid_t pid, struct old_timespec32 __user *interval); - -/* kernel/signal.c */ asmlinkage long sys_restart_syscall(void); asmlinkage long sys_kill(pid_t pid, int sig); asmlinkage long sys_tkill(pid_t pid, int sig); @@ -737,8 +655,6 @@ asmlinkage long sys_rt_sigtimedwait_time32(const sigset_t __user *uthese, const struct old_timespec32 __user *uts, size_t sigsetsize); asmlinkage long sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo); - -/* kernel/sys.c */ asmlinkage long sys_setpriority(int which, int who, int niceval); asmlinkage long sys_getpriority(int which, int who); asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd, @@ -772,16 +688,12 @@ asmlinkage long sys_umask(int mask); asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3, unsigned long arg4, unsigned long arg5); asmlinkage long sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache); - -/* kernel/time.c */ asmlinkage long sys_gettimeofday(struct __kernel_old_timeval __user *tv, struct timezone __user *tz); asmlinkage long sys_settimeofday(struct __kernel_old_timeval __user *tv, struct timezone __user *tz); asmlinkage long sys_adjtimex(struct __kernel_timex __user *txc_p); asmlinkage long sys_adjtimex_time32(struct old_timex32 __user *txc_p); - -/* kernel/sys.c */ asmlinkage long sys_getpid(void); asmlinkage long sys_getppid(void); asmlinkage long sys_getuid(void); @@ -790,8 +702,6 @@ asmlinkage long sys_getgid(void); asmlinkage long sys_getegid(void); asmlinkage long sys_gettid(void); asmlinkage long sys_sysinfo(struct sysinfo __user *info); - -/* ipc/mqueue.c */ asmlinkage long sys_mq_open(const char __user *name, int oflag, umode_t mode, struct mq_attr __user *attr); asmlinkage long sys_mq_unlink(const char __user *name); asmlinkage long sys_mq_timedsend(mqd_t mqdes, const char __user *msg_ptr, size_t msg_len, unsigned int msg_prio, const struct __kernel_timespec __user *abs_timeout); @@ -806,8 +716,6 @@ asmlinkage long sys_mq_timedsend_time32(mqd_t mqdes, const char __user *u_msg_ptr, unsigned int msg_len, unsigned int msg_prio, const struct old_timespec32 __user *u_abs_timeout); - -/* ipc/msg.c */ asmlinkage long sys_msgget(key_t key, int msgflg); asmlinkage long sys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf); asmlinkage long sys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf); @@ -815,8 +723,6 @@ asmlinkage long sys_msgrcv(int msqid, struct msgbuf __user *msgp, size_t msgsz, long msgtyp, int msgflg); asmlinkage long sys_msgsnd(int msqid, struct msgbuf __user *msgp, size_t msgsz, int msgflg); - -/* ipc/sem.c */ asmlinkage long sys_semget(key_t key, int nsems, int semflg); asmlinkage long sys_semctl(int semid, int semnum, int cmd, unsigned long arg); asmlinkage long sys_old_semctl(int semid, int semnum, int cmd, unsigned long arg); @@ -828,15 +734,11 @@ asmlinkage long sys_semtimedop_time32(int semid, struct sembuf __user *sops, const struct old_timespec32 __user *timeout); asmlinkage long sys_semop(int semid, struct sembuf __user *sops, unsigned nsops); - -/* ipc/shm.c */ asmlinkage long sys_shmget(key_t key, size_t size, int flag); asmlinkage long sys_old_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); asmlinkage long sys_shmctl(int shmid, int cmd, struct shmid_ds __user *buf); asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg); asmlinkage long sys_shmdt(char __user *shmaddr); - -/* net/socket.c */ asmlinkage long sys_socket(int, int, int); asmlinkage long sys_socketpair(int, int, int, int __user *); asmlinkage long sys_bind(int, struct sockaddr __user *, int); @@ -856,18 +758,12 @@ asmlinkage long sys_getsockopt(int fd, int level, int optname, asmlinkage long sys_shutdown(int, int); asmlinkage long sys_sendmsg(int fd, struct user_msghdr __user *msg, unsigned flags); asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags); - -/* mm/filemap.c */ asmlinkage long sys_readahead(int fd, loff_t offset, size_t count); - -/* mm/nommu.c, also with MMU */ asmlinkage long sys_brk(unsigned long brk); asmlinkage long sys_munmap(unsigned long addr, size_t len); asmlinkage long sys_mremap(unsigned long addr, unsigned long old_len, unsigned long new_len, unsigned long flags, unsigned long new_addr); - -/* security/keys/keyctl.c */ asmlinkage long sys_add_key(const char __user *_type, const char __user *_description, const void __user *_payload, @@ -879,8 +775,6 @@ asmlinkage long sys_request_key(const char __user *_type, key_serial_t destringid); asmlinkage long sys_keyctl(int cmd, unsigned long arg2, unsigned long arg3, unsigned long arg4, unsigned long arg5); - -/* arch/example/kernel/sys_example.c */ #ifdef CONFIG_CLONE_BACKWARDS asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, unsigned long, int __user *); @@ -899,11 +793,9 @@ asmlinkage long sys_clone3(struct clone_args __user *uargs, size_t size); asmlinkage long sys_execve(const char __user *filename, const char __user *const __user *argv, const char __user *const __user *envp); - -/* mm/fadvise.c */ asmlinkage long sys_fadvise64_64(int fd, loff_t offset, loff_t len, int advice); -/* mm/, CONFIG_MMU only */ +/* CONFIG_MMU only */ asmlinkage long sys_swapon(const char __user *specialfile, int swap_flags); asmlinkage long sys_swapoff(const char __user *specialfile); asmlinkage long sys_mprotect(unsigned long start, size_t len, @@ -941,7 +833,6 @@ asmlinkage long sys_move_pages(pid_t pid, unsigned long nr_pages, const int __user *nodes, int __user *status, int flags); - asmlinkage long sys_rt_tgsigqueueinfo(pid_t tgid, pid_t pid, int sig, siginfo_t __user *uinfo); asmlinkage long sys_perf_event_open( @@ -954,7 +845,6 @@ asmlinkage long sys_recvmmsg(int fd, struct mmsghdr __user *msg, asmlinkage long sys_recvmmsg_time32(int fd, struct mmsghdr __user *msg, unsigned int vlen, unsigned flags, struct old_timespec32 __user *timeout); - asmlinkage long sys_wait4(pid_t pid, int __user *stat_addr, int options, struct rusage __user *ru); asmlinkage long sys_prlimit64(pid_t pid, unsigned int resource, @@ -1063,7 +953,7 @@ asmlinkage long sys_set_mempolicy_home_node(unsigned long start, unsigned long l * Architecture-specific system calls */ -/* arch/x86/kernel/ioport.c */ +/* x86 */ asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on); /* pciconfig: alpha, arm, arm64, ia64, sparc */ @@ -1171,11 +1061,11 @@ asmlinkage long sys_sysfs(int option, unsigned long arg1, unsigned long arg2); asmlinkage long sys_fork(void); -/* obsolete: kernel/time/time.c */ +/* obsolete */ asmlinkage long sys_stime(__kernel_old_time_t __user *tptr); asmlinkage long sys_stime32(old_time32_t __user *tptr); -/* obsolete: kernel/signal.c */ +/* obsolete */ asmlinkage long sys_sigpending(old_sigset_t __user *uset); asmlinkage long sys_sigprocmask(int how, old_sigset_t __user *set, old_sigset_t __user *oset); @@ -1195,19 +1085,19 @@ asmlinkage long sys_sgetmask(void); asmlinkage long sys_ssetmask(int newmask); asmlinkage long sys_signal(int sig, __sighandler_t handler); -/* obsolete: kernel/sched/core.c */ +/* obsolete */ asmlinkage long sys_nice(int increment); -/* obsolete: kernel/kexec_file.c */ +/* obsolete */ asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd, unsigned long cmdline_len, const char __user *cmdline_ptr, unsigned long flags); -/* obsolete: kernel/exit.c */ +/* obsolete */ asmlinkage long sys_waitpid(pid_t pid, int __user *stat_addr, int options); -/* obsolete: kernel/uid16.c */ +/* obsolete */ #ifdef CONFIG_HAVE_UID16 asmlinkage long sys_chown16(const char __user *filename, old_uid_t user, old_gid_t group); @@ -1234,10 +1124,10 @@ asmlinkage long sys_getgid16(void); asmlinkage long sys_getegid16(void); #endif -/* obsolete: net/socket.c */ +/* obsolete */ asmlinkage long sys_socketcall(int call, unsigned long __user *args); -/* obsolete: fs/stat.c */ +/* obsolete */ asmlinkage long sys_stat(const char __user *filename, struct __old_kernel_stat __user *statbuf); asmlinkage long sys_lstat(const char __user *filename, @@ -1247,13 +1137,13 @@ asmlinkage long sys_fstat(unsigned int fd, asmlinkage long sys_readlink(const char __user *path, char __user *buf, int bufsiz); -/* obsolete: fs/select.c */ +/* obsolete */ asmlinkage long sys_old_select(struct sel_arg_struct __user *arg); -/* obsolete: fs/readdir.c */ +/* obsolete */ asmlinkage long sys_old_readdir(unsigned int, struct old_linux_dirent __user *, unsigned int); -/* obsolete: kernel/sys.c */ +/* obsolete */ asmlinkage long sys_gethostname(char __user *name, int len); asmlinkage long sys_uname(struct old_utsname __user *); asmlinkage long sys_olduname(struct oldold_utsname __user *); @@ -1261,11 +1151,11 @@ asmlinkage long sys_olduname(struct oldold_utsname __user *); asmlinkage long sys_old_getrlimit(unsigned int resource, struct rlimit __user *rlim); #endif -/* obsolete: ipc */ +/* obsolete */ asmlinkage long sys_ipc(unsigned int call, int first, unsigned long second, unsigned long third, void __user *ptr, long fifth); -/* obsolete: mm/ */ +/* obsolete */ asmlinkage long sys_mmap_pgoff(unsigned long addr, unsigned long len, unsigned long prot, unsigned long flags, unsigned long fd, unsigned long pgoff); -- cgit v1.2.3 From c1d2ba10f594046831d14b03f194e8d05e78abad Mon Sep 17 00:00:00 2001 From: Yury Norov Date: Mon, 27 Feb 2023 11:24:36 -0800 Subject: lib/bitmap: drop optimization of bitmap_{from,to}_arr64 bitmap_{from,to}_arr64() optimization is overly optimistic on 32-bit LE architectures when it's wired to bitmap_copy_clear_tail(). bitmap_copy_clear_tail() takes care of unused bits in the bitmap up to the next word boundary. But on 32-bit machines when copying bits from bitmap to array of 64-bit words, it's expected that the unused part of a recipient array must be cleared up to 64-bit boundary, so the last 4 bytes may stay untouched when nbits % 64 <= 32. While the copying part of the optimization works correct, that clear-tail trick makes corresponding tests reasonably fail: test_bitmap: bitmap_to_arr64(nbits == 1): tail is not safely cleared: 0xa5a5a5a500000001 (must be 0x0000000000000001) Fix it by removing bitmap_{from,to}_arr64() optimization for 32-bit LE arches. Reported-by: Guenter Roeck Link: https://lore.kernel.org/lkml/20230225184702.GA3587246@roeck-us.net/ Fixes: 0a97953fd221 ("lib: add bitmap_{from,to}_arr64") Signed-off-by: Yury Norov Tested-by: Guenter Roeck Reviewed-by: Andy Shevchenko Reviewed-by: Alexander Lobakin --- include/linux/bitmap.h | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h index 7d6d73b78147..03644237e1ef 100644 --- a/include/linux/bitmap.h +++ b/include/linux/bitmap.h @@ -302,12 +302,10 @@ void bitmap_to_arr32(u32 *buf, const unsigned long *bitmap, #endif /* - * On 64-bit systems bitmaps are represented as u64 arrays internally. On LE32 - * machines the order of hi and lo parts of numbers match the bitmap structure. - * In both cases conversion is not needed when copying data from/to arrays of - * u64. + * On 64-bit systems bitmaps are represented as u64 arrays internally. So, + * the conversion is not needed when copying data from/to arrays of u64. */ -#if (BITS_PER_LONG == 32) && defined(__BIG_ENDIAN) +#if BITS_PER_LONG == 32 void bitmap_from_arr64(unsigned long *bitmap, const u64 *buf, unsigned int nbits); void bitmap_to_arr64(u64 *buf, const unsigned long *bitmap, unsigned int nbits); #else -- cgit v1.2.3 From cdd2d06fbc0a58297f782c8eb7e2f3c0b1dc367e Mon Sep 17 00:00:00 2001 From: Gavin Shan Date: Tue, 24 Jan 2023 08:02:43 +0800 Subject: nodemask: Drop duplicate check in for_each_node_mask() The return value type is changed from 'int' to 'unsigned int' since commit 0dfe54071d7c8 ("nodemask: Fix return values to be unsigned"). Besides, the conversion between 'int' and 'unsigned int' on the parameter @node is guaranteed to be safe due to the limited range of MAX_NUMNODES and CONFIG_NODES_SHIFT. By the way, '(node >= 0)' should have been '(node) >= 0' actually. It's unnecessary to check if their return values are greater or equal to 0 in for_each_node_mask(). Remove it. No functional change intended. Signed-off-by: Gavin Shan Reviewed-by: Andy Shevchenko Signed-off-by: Yury Norov --- include/linux/nodemask.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/nodemask.h b/include/linux/nodemask.h index bb0ee80526b2..8d07116caaf1 100644 --- a/include/linux/nodemask.h +++ b/include/linux/nodemask.h @@ -385,7 +385,7 @@ static inline void __nodes_fold(nodemask_t *dstp, const nodemask_t *origp, #if MAX_NUMNODES > 1 #define for_each_node_mask(node, mask) \ for ((node) = first_node(mask); \ - (node >= 0) && (node) < MAX_NUMNODES; \ + (node) < MAX_NUMNODES; \ (node) = next_node((node), (mask))) #else /* MAX_NUMNODES == 1 */ #define for_each_node_mask(node, mask) \ -- cgit v1.2.3 From 2b5ae9604949391da6661eab0a854de4ecd140f6 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Mon, 3 Jul 2023 15:14:07 +0300 Subject: ACPI: bus: Introduce acpi_match_acpi_device() helper Match the ACPI device against a given list of ACPI IDs. Subsequent changes will make use of this. Signed-off-by: Andy Shevchenko [ rjw: Changelog edit ] Signed-off-by: Rafael J. Wysocki --- include/linux/acpi.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include/linux') diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 5ef126a0a50f..ffbc8c8f23d8 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -719,6 +719,9 @@ extern int acpi_nvs_register(__u64 start, __u64 size); extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), void *data); +const struct acpi_device_id *acpi_match_acpi_device(const struct acpi_device_id *ids, + const struct acpi_device *adev); + const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids, const struct device *dev); @@ -935,6 +938,12 @@ static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *), struct acpi_device_id; +static inline const struct acpi_device_id *acpi_match_acpi_device( + const struct acpi_device_id *ids, const struct acpi_device *adev) +{ + return NULL; +} + static inline const struct acpi_device_id *acpi_match_device( const struct acpi_device_id *ids, const struct device *dev) { -- cgit v1.2.3 From 6b5c13b591d753c6022fbd12f8c0c0a9a07fc065 Mon Sep 17 00:00:00 2001 From: Niklas Schnelle Date: Fri, 7 Jul 2023 12:56:20 +0200 Subject: s390/ism: Fix locking for forwarding of IRQs and events to clients The clients array references all registered clients and is protected by the clients_lock. Besides its use as general list of clients the clients array is accessed in ism_handle_irq() to forward ISM device events to clients. While the clients_lock is taken in the IRQ handler when calling handle_event() it is however incorrectly not held during the client->handle_irq() call and for the preceding clients[] access leaving it unprotected against concurrent client (un-)registration. Furthermore the accesses to ism->sba_client_arr[] in ism_register_dmb() and ism_unregister_dmb() are not protected by any lock. This is especially problematic as the client ID from the ism->sba_client_arr[] is not checked against NO_CLIENT and neither is the client pointer checked. Instead of expanding the use of the clients_lock further add a separate array in struct ism_dev which references clients subscribed to the device's events and IRQs. This array is protected by ism->lock which is already taken in ism_handle_irq() and can be taken outside the IRQ handler when adding/removing subscribers or the accessing ism->sba_client_arr[]. This also means that the clients_lock is no longer taken in IRQ context. Fixes: 89e7d2ba61b7 ("net/ism: Add new API for client registration") Signed-off-by: Niklas Schnelle Reviewed-by: Alexandra Winter Signed-off-by: David S. Miller --- include/linux/ism.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/ism.h b/include/linux/ism.h index ea2bcdae7401..5160d47e5ea9 100644 --- a/include/linux/ism.h +++ b/include/linux/ism.h @@ -44,6 +44,7 @@ struct ism_dev { u64 local_gid; int ieq_idx; + struct ism_client *subs[MAX_CLIENTS]; atomic_t free_clients_cnt; atomic_t add_dev_cnt; wait_queue_head_t waitq; -- cgit v1.2.3 From 76631ffa2fd2d45bae5ad717eef716b94144e0e7 Mon Sep 17 00:00:00 2001 From: Niklas Schnelle Date: Fri, 7 Jul 2023 12:56:21 +0200 Subject: s390/ism: Fix and simplify add()/remove() callback handling Previously the clients_lock was protecting the clients array against concurrent addition/removal of clients but was also accessed from IRQ context. This meant that it had to be a spinlock and that the add() and remove() callbacks in which clients need to do allocation and take mutexes can't be called under the clients_lock. To work around this these callbacks were moved to workqueues. This not only introduced significant complexity but is also subtly broken in at least one way. In ism_dev_init() and ism_dev_exit() clients[i]->tgt_ism is used to communicate the added/removed ISM device to the work function. While write access to client[i]->tgt_ism is protected by the clients_lock and the code waits that there is no pending add/remove work before and after setting clients[i]->tgt_ism this is not enough. The problem is that the wait happens based on per ISM device counters. Thus a concurrent ism_dev_init()/ism_dev_exit() for a different ISM device may overwrite a clients[i]->tgt_ism between unlocking the clients_lock and the subsequent wait for the work to finnish. Thankfully with the clients_lock no longer held in IRQ context it can be turned into a mutex which can be held during the calls to add()/remove() completely removing the need for the workqueues and the associated broken housekeeping including the per ISM device counters and the clients[i]->tgt_ism. Fixes: 89e7d2ba61b7 ("net/ism: Add new API for client registration") Signed-off-by: Niklas Schnelle Signed-off-by: David S. Miller --- include/linux/ism.h | 6 ------ 1 file changed, 6 deletions(-) (limited to 'include/linux') diff --git a/include/linux/ism.h b/include/linux/ism.h index 5160d47e5ea9..9a4c204df3da 100644 --- a/include/linux/ism.h +++ b/include/linux/ism.h @@ -45,9 +45,6 @@ struct ism_dev { int ieq_idx; struct ism_client *subs[MAX_CLIENTS]; - atomic_t free_clients_cnt; - atomic_t add_dev_cnt; - wait_queue_head_t waitq; }; struct ism_event { @@ -69,9 +66,6 @@ struct ism_client { */ void (*handle_irq)(struct ism_dev *dev, unsigned int bit, u16 dmbemask); /* Private area - don't touch! */ - struct work_struct remove_work; - struct work_struct add_work; - struct ism_dev *tgt_ism; u8 id; }; -- cgit v1.2.3 From 028725e73375a1ff080bbdf9fb503306d0116f28 Mon Sep 17 00:00:00 2001 From: Liu Shixin Date: Tue, 4 Jul 2023 18:19:42 +0800 Subject: bootmem: remove the vmemmap pages from kmemleak in free_bootmem_page commit dd0ff4d12dd2 ("bootmem: remove the vmemmap pages from kmemleak in put_page_bootmem") fix an overlaps existing problem of kmemleak. But the problem still existed when HAVE_BOOTMEM_INFO_NODE is disabled, because in this case, free_bootmem_page() will call free_reserved_page() directly. Fix the problem by adding kmemleak_free_part() in free_bootmem_page() when HAVE_BOOTMEM_INFO_NODE is disabled. Link: https://lkml.kernel.org/r/20230704101942.2819426-1-liushixin2@huawei.com Fixes: f41f2ed43ca5 ("mm: hugetlb: free the vmemmap pages associated with each HugeTLB page") Signed-off-by: Liu Shixin Acked-by: Muchun Song Cc: Matthew Wilcox Cc: Mike Kravetz Cc: Oscar Salvador Cc: Signed-off-by: Andrew Morton --- include/linux/bootmem_info.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/bootmem_info.h b/include/linux/bootmem_info.h index cc35d010fa94..e1a3c9c9754c 100644 --- a/include/linux/bootmem_info.h +++ b/include/linux/bootmem_info.h @@ -3,6 +3,7 @@ #define __LINUX_BOOTMEM_INFO_H #include +#include /* * Types for free bootmem stored in page->lru.next. These have to be in @@ -59,6 +60,7 @@ static inline void get_page_bootmem(unsigned long info, struct page *page, static inline void free_bootmem_page(struct page *page) { + kmemleak_free_part(page_to_virt(page), PAGE_SIZE); free_reserved_page(page); } #endif -- cgit v1.2.3 From 195b9cb5b288fec1c871ef89f78cc9a7461aad3a Mon Sep 17 00:00:00 2001 From: "Masami Hiramatsu (Google)" Date: Fri, 7 Jul 2023 23:03:19 +0900 Subject: fprobe: Ensure running fprobe_exit_handler() finished before calling rethook_free() Ensure running fprobe_exit_handler() has finished before calling rethook_free() in the unregister_fprobe() so that caller can free the fprobe right after unregister_fprobe(). unregister_fprobe() ensured that all running fprobe_entry/exit_handler() have finished by calling unregister_ftrace_function() which synchronizes RCU. But commit 5f81018753df ("fprobe: Release rethook after the ftrace_ops is unregistered") changed to call rethook_free() after unregister_ftrace_function(). So call rethook_stop() to make rethook disabled before unregister_ftrace_function() and ensure it again. Here is the possible code flow that can call the exit handler after unregister_fprobe(). ------ CPU1 CPU2 call unregister_fprobe(fp) ... __fprobe_handler() rethook_hook() on probed function unregister_ftrace_function() return from probed function rethook hooks find rh->handler == fprobe_exit_handler call fprobe_exit_handler() rethook_free(): set rh->handler = NULL; return from unreigster_fprobe; call fp->exit_handler() <- (*) ------ (*) At this point, the exit handler is called after returning from unregister_fprobe(). This fixes it as following; ------ CPU1 CPU2 call unregister_fprobe() ... rethook_stop(): set rh->handler = NULL; __fprobe_handler() rethook_hook() on probed function unregister_ftrace_function() return from probed function rethook hooks find rh->handler == NULL return from rethook rethook_free() return from unreigster_fprobe; ------ Link: https://lore.kernel.org/all/168873859949.156157.13039240432299335849.stgit@devnote2/ Fixes: 5f81018753df ("fprobe: Release rethook after the ftrace_ops is unregistered") Cc: stable@vger.kernel.org Signed-off-by: Masami Hiramatsu (Google) Reviewed-by: Steven Rostedt (Google) --- include/linux/rethook.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/rethook.h b/include/linux/rethook.h index c8ac1e5afcd1..bdbe6717f45a 100644 --- a/include/linux/rethook.h +++ b/include/linux/rethook.h @@ -59,6 +59,7 @@ struct rethook_node { }; struct rethook *rethook_alloc(void *data, rethook_handler_t handler); +void rethook_stop(struct rethook *rh); void rethook_free(struct rethook *rh); void rethook_add_node(struct rethook *rh, struct rethook_node *node); struct rethook_node *rethook_try_get(struct rethook *rh); -- cgit v1.2.3 From 7d8b31b73c79835572611ed1eed649e4d2e14245 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Wed, 17 May 2023 14:51:48 +0200 Subject: tracing: arm64: Avoid missing-prototype warnings These are all tracing W=1 warnings in arm64 allmodconfig about missing prototypes: kernel/trace/trace_kprobe_selftest.c:7:5: error: no previous prototype for 'kprobe_trace_selftest_target' [-Werror=missing-pro totypes] kernel/trace/ftrace.c:329:5: error: no previous prototype for '__register_ftrace_function' [-Werror=missing-prototypes] kernel/trace/ftrace.c:372:5: error: no previous prototype for '__unregister_ftrace_function' [-Werror=missing-prototypes] kernel/trace/ftrace.c:4130:15: error: no previous prototype for 'arch_ftrace_match_adjust' [-Werror=missing-prototypes] kernel/trace/fgraph.c:243:15: error: no previous prototype for 'ftrace_return_to_handler' [-Werror=missing-prototypes] kernel/trace/fgraph.c:358:6: error: no previous prototype for 'ftrace_graph_sleep_time_control' [-Werror=missing-prototypes] arch/arm64/kernel/ftrace.c:460:6: error: no previous prototype for 'prepare_ftrace_return' [-Werror=missing-prototypes] arch/arm64/kernel/ptrace.c:2172:5: error: no previous prototype for 'syscall_trace_enter' [-Werror=missing-prototypes] arch/arm64/kernel/ptrace.c:2195:6: error: no previous prototype for 'syscall_trace_exit' [-Werror=missing-prototypes] Move the declarations to an appropriate header where they can be seen by the caller and callee, and make sure the headers are included where needed. Link: https://lore.kernel.org/linux-trace-kernel/20230517125215.930689-1-arnd@kernel.org Cc: Masami Hiramatsu Cc: Mark Rutland Cc: Will Deacon Cc: Kees Cook Cc: Florent Revest Signed-off-by: Arnd Bergmann Acked-by: Catalin Marinas [ Fixed ftrace_return_to_handler() to handle CONFIG_HAVE_FUNCTION_GRAPH_RETVAL case ] Signed-off-by: Steven Rostedt (Google) --- include/linux/ftrace.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include/linux') diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index 8e59bd954153..ce156c7704ee 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -41,6 +41,15 @@ struct ftrace_ops; struct ftrace_regs; struct dyn_ftrace; +char *arch_ftrace_match_adjust(char *str, const char *search); + +#ifdef CONFIG_HAVE_FUNCTION_GRAPH_RETVAL +struct fgraph_ret_regs; +unsigned long ftrace_return_to_handler(struct fgraph_ret_regs *ret_regs); +#else +unsigned long ftrace_return_to_handler(unsigned long frame_pointer); +#endif + #ifdef CONFIG_FUNCTION_TRACER /* * If the arch's mcount caller does not support all of ftrace's -- cgit v1.2.3