Merge tag 'trace-v7.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-tracegrafted

Pull tracing fixes from Steven Rostedt:

 - Fix error output of boot instance creation failure

   Currently if a boot instance creation fails, instead of printing out
   the name of the instance that failed, it prints "(null)". That is
   because it prints "cur_str" that had already been processed by
   strsep(). Print the saved name instead.

   While at it, print the error code of the failure.

 - Fix use-after-free for same named historgrams

   Histograms can be named so that they can be used in multiple events.
   But if the named histogram has a variable attached, the second event
   that uses the named histogram which duplicates it and needs to free
   the original after duplication leaves the old variable in place and
   still visible. If another histogram uses than variable, it will use
   the stale one which will try to reference the freed duplicate
   histogram and crash the kernel.

   Free the duplicate variables along with the duplicated histogram
   data.

 - Check return value of kthread_run() in event self test

   The events self tests uses a kthread for testing but does not check
   if it succeeded in creating a kthread. If the kthread creation were
   to fail, the code will still try to call kthread_stop() on the error
   returned.

 - Fix race between reading trace_pipe and updating subbuffer size

   If a user is reading the trace_pipe file at the same time they update
   the ring buffer sub-buffer size, can cause the trace_pipe read to
   read stale data. Add trace_access_lock() around updating the ring
   buffer sub-buffer size.

 - Fix eventfs_inode on failure path in creation of the events directory

   In the creation of the "events" directory, if after allocating the
   eventfs_inode a failure is detected, it calls cleanup_ei() which
   calls free_ei(). The free_ei() will test if eventfs_inode being freed
   has no children. It is a bug if it does. But on the failure case of
   the creation of the "events" directory, the children lists have not
   yet been initialized and the free will trigger a warning because
   list_empty() on an uninitialized list returns false.

   Move the initialization into init_ei() where it makes more sense and
   makes sure that a created eventfs_inode has its lists initialized
   upon creation.

 - Check return value of kthread_run() in ftrace direct sample code

   The sample code that shows how to use the ftrace direct calls does
   not test the return of kthread_run() to see if it succeeds. Return a
   failure if the kthread_run() doesn't succeed.

 - Clear user events state on fork in case of alloc failure

   On fork, the child gets a pointer to the parent's user events state.
   It makes a copy of it then updates the child's pointer to it. But if
   the allocation fails, the duplication function leaves the child with
   a pointer to its parent's descriptor. When the child cleans up its
   data, it will free the parent's descriptor while the parent is still
   using it.

   In the duplication function, set the child's user_event_mm to NULL
   before testing if the allocation succeeded, and when it exits it will
   not free the parent's descriptor.

 - Fix retry exhaustion in simple ring buffer reader swap

   simple_ring_buffer_swap_reader_page() starts with retry set to 8 and
   post-decrements it only after a failed link replacement. On the final
   attempt, a successful replacement leaves retry at zero, while a
   failed replacement leaves it at -1.

   But the check for success expects the retry value to be non-zero and
   exits with an error on zero. This is the opposite result. Fix it.

 - Fail nicely when the remote swap_reader_page() returns an error

   Currently, if the swap_reader_page() of a remote buffer fails, it
   triggers a WARN_ON_ONCE() and continues normally. Instead, have it
   exit with an error and a pr_warn() print instead of a full WARNING.

* tag 'trace-v7.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  ring-buffer: Stop remote reader update when page swap fails
  tracing: Fix retry exhaustion in simple ring buffer reader swap
  tracing/user_events: Clear copied tracing state before fork duplication
  samples/ftrace: Fix kthread_stop() on ERR_PTR in ftrace-direct-multi-modify
  samples/ftrace: Fix kthread_stop() on ERR_PTR in ftrace-direct-modify
  eventfs: Initialize ei->children and ei->list in init_ei()
  tracing: Fix use-after-free in trace_pipe read on sub-buffer order change
  tracing: Fix crash passing ERR_PTR to kthread_stop()
  tracing: Fix use-after-free with same-name named triggers
  tracing: Fix logged instance name on creation failure

1 files changed, 206 insertions, 0 deletions

diff --git a/drivers/misc/cardreader/rts5261.h b/drivers/misc/cardreader/rts5261.h
new file mode 100644
index 000000000..2344c560a
--- /dev/null
+++ b/drivers/misc/cardreader/rts5261.h
@@ -0,0 +1,206 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* Driver for Realtek PCI-Express card reader
+ *
+ * Copyright(c) 2018-2019 Realtek Semiconductor Corp. All rights reserved.
+ *
+ * Author:
+ *   Rui FENG <rui_feng@realsil.com.cn>
+ *   Wei WANG <wei_wang@realsil.com.cn>
+ */
+#ifndef RTS5261_H
+#define RTS5261_H
+
+/*New add*/
+#define rts5261_vendor_setting_valid(reg)	((reg) & 0x010000)
+#define rts5261_reg_to_aspm(reg) \
+	(((~(reg) >> 28) & 0x02) | (((reg) >> 28) & 0x01))
+#define rts5261_reg_check_reverse_socket(reg)	((reg) & 0x04)
+#define rts5261_reg_to_sd30_drive_sel_1v8(reg)	(((reg) >> 22) & 0x03)
+#define rts5261_reg_to_sd30_drive_sel_3v3(reg)	(((reg) >> 16) & 0x03)
+#define rts5261_reg_to_rtd3(reg)		((reg) & 0x08)
+#define rts5261_reg_check_mmc_support(reg)	((reg) & 0x10)
+
+#define RTS5261_AUTOLOAD_CFG0		0xFF7B
+#define RTS5261_AUTOLOAD_CFG1		0xFF7C
+#define RTS5261_AUTOLOAD_CFG2		0xFF7D
+#define RTS5261_AUTOLOAD_CFG3		0xFF7E
+#define RTS5261_AUTOLOAD_CFG4		0xFF7F
+#define RTS5261_FORCE_PRSNT_LOW		(1 << 6)
+#define RTS5261_AUX_CLK_16M_EN		(1 << 5)
+
+#define RTS5261_REG_VREF		0xFE97
+#define RTS5261_PWD_SUSPND_EN		(1 << 4)
+
+#define RTS5261_PAD_H3L1		0xFF79
+#define PAD_GPIO_H3L1			(1 << 3)
+
+/* SSC_CTL2 0xFC12 */
+#define RTS5261_SSC_DEPTH_MASK		0x07
+#define RTS5261_SSC_DEPTH_DISALBE	0x00
+#define RTS5261_SSC_DEPTH_8M		0x01
+#define RTS5261_SSC_DEPTH_4M		0x02
+#define RTS5261_SSC_DEPTH_2M		0x03
+#define RTS5261_SSC_DEPTH_1M		0x04
+#define RTS5261_SSC_DEPTH_512K		0x05
+#define RTS5261_SSC_DEPTH_256K		0x06
+#define RTS5261_SSC_DEPTH_128K		0x07
+
+/* efuse control register*/
+#define RTS5261_EFUSE_CTL		0xFC30
+#define RTS5261_EFUSE_ENABLE		0x80
+/* EFUSE_MODE: 0=READ 1=PROGRAM */
+#define RTS5261_EFUSE_MODE_MASK		0x40
+#define RTS5261_EFUSE_PROGRAM		0x40
+
+#define RTS5261_EFUSE_ADDR		0xFC31
+#define	RTS5261_EFUSE_ADDR_MASK		0x3F
+
+#define RTS5261_EFUSE_WRITE_DATA	0xFC32
+#define RTS5261_EFUSE_READ_DATA		0xFC34
+
+/* DMACTL 0xFE2C */
+#define RTS5261_DMA_PACK_SIZE_MASK	0xF0
+
+/* FW status register */
+#define RTS5261_FW_STATUS		0xFF56
+#define RTS5261_EXPRESS_LINK_FAIL_MASK	(0x01<<7)
+
+/* FW control register */
+#define RTS5261_FW_CTL			0xFF5F
+#define RTS5261_INFORM_RTD3_COLD	(0x01<<5)
+
+#define RTS5261_REG_FPDCTL		0xFF60
+
+#define RTS5261_REG_LDO12_CFG		0xFF6E
+#define RTS5261_LDO12_VO_TUNE_MASK	(0x07<<1)
+#define RTS5261_LDO12_115		(0x03<<1)
+#define RTS5261_LDO12_120		(0x04<<1)
+#define RTS5261_LDO12_125		(0x05<<1)
+#define RTS5261_LDO12_130		(0x06<<1)
+#define RTS5261_LDO12_135		(0x07<<1)
+
+/* LDO control register */
+#define RTS5261_CARD_PWR_CTL		0xFD50
+#define RTS5261_SD_CLK_ISO		(0x01<<7)
+#define RTS5261_PAD_SD_DAT_FW_CTRL	(0x01<<6)
+#define RTS5261_PUPDC			(0x01<<5)
+#define RTS5261_SD_CMD_ISO		(0x01<<4)
+#define RTS5261_SD_DAT_ISO_MASK		(0x0F<<0)
+
+#define RTS5261_LDO1233318_POW_CTL	0xFF70
+#define RTS5261_LDO3318_POWERON		(0x01<<3)
+#define RTS5261_LDO3_POWERON		(0x01<<2)
+#define RTS5261_LDO2_POWERON		(0x01<<1)
+#define RTS5261_LDO1_POWERON		(0x01<<0)
+#define RTS5261_LDO_POWERON_MASK	(0x0F<<0)
+
+#define RTS5261_DV3318_CFG		0xFF71
+#define RTS5261_DV3318_TUNE_MASK	(0x07<<4)
+#define RTS5261_DV3318_18		(0x02<<4)
+#define RTS5261_DV3318_19		(0x04<<4)
+#define RTS5261_DV3318_33		(0x07<<4)
+
+/* CRD6603-433 190319 request changed */
+#define RTS5261_LDO1_OCP_THD_740	(0x00<<5)
+#define RTS5261_LDO1_OCP_THD_800	(0x01<<5)
+#define RTS5261_LDO1_OCP_THD_860	(0x02<<5)
+#define RTS5261_LDO1_OCP_THD_920	(0x03<<5)
+#define RTS5261_LDO1_OCP_THD_980	(0x04<<5)
+#define RTS5261_LDO1_OCP_THD_1040	(0x05<<5)
+#define RTS5261_LDO1_OCP_THD_1100	(0x06<<5)
+#define RTS5261_LDO1_OCP_THD_1160	(0x07<<5)
+
+#define RTS5261_LDO1_LMT_THD_450	(0x00<<2)
+#define RTS5261_LDO1_LMT_THD_1000	(0x01<<2)
+#define RTS5261_LDO1_LMT_THD_1500	(0x02<<2)
+#define RTS5261_LDO1_LMT_THD_2000	(0x03<<2)
+
+#define RTS5261_LDO1_CFG1		0xFF73
+#define RTS5261_LDO1_TUNE_MASK		(0x07<<1)
+#define RTS5261_LDO1_18			(0x05<<1)
+#define RTS5261_LDO1_33			(0x07<<1)
+#define RTS5261_LDO1_PWD_MASK		(0x01<<0)
+
+#define RTS5261_LDO2_CFG0		0xFF74
+#define RTS5261_LDO2_OCP_THD_MASK	(0x07<<5)
+#define RTS5261_LDO2_OCP_EN		(0x01<<4)
+#define RTS5261_LDO2_OCP_LMT_THD_MASK	(0x03<<2)
+#define RTS5261_LDO2_OCP_LMT_EN		(0x01<<1)
+
+#define RTS5261_LDO2_OCP_THD_620	(0x00<<5)
+#define RTS5261_LDO2_OCP_THD_650	(0x01<<5)
+#define RTS5261_LDO2_OCP_THD_680	(0x02<<5)
+#define RTS5261_LDO2_OCP_THD_720	(0x03<<5)
+#define RTS5261_LDO2_OCP_THD_750	(0x04<<5)
+#define RTS5261_LDO2_OCP_THD_780	(0x05<<5)
+#define RTS5261_LDO2_OCP_THD_810	(0x06<<5)
+#define RTS5261_LDO2_OCP_THD_840	(0x07<<5)
+
+#define RTS5261_LDO2_CFG1		0xFF75
+#define RTS5261_LDO2_TUNE_MASK		(0x07<<1)
+#define RTS5261_LDO2_18			(0x05<<1)
+#define RTS5261_LDO2_33			(0x07<<1)
+#define RTS5261_LDO2_PWD_MASK		(0x01<<0)
+
+#define RTS5261_LDO3_CFG0		0xFF76
+#define RTS5261_LDO3_OCP_THD_MASK	(0x07<<5)
+#define RTS5261_LDO3_OCP_EN		(0x01<<4)
+#define RTS5261_LDO3_OCP_LMT_THD_MASK	(0x03<<2)
+#define RTS5261_LDO3_OCP_LMT_EN		(0x01<<1)
+
+#define RTS5261_LDO3_OCP_THD_620	(0x00<<5)
+#define RTS5261_LDO3_OCP_THD_650	(0x01<<5)
+#define RTS5261_LDO3_OCP_THD_680	(0x02<<5)
+#define RTS5261_LDO3_OCP_THD_720	(0x03<<5)
+#define RTS5261_LDO3_OCP_THD_750	(0x04<<5)
+#define RTS5261_LDO3_OCP_THD_780	(0x05<<5)
+#define RTS5261_LDO3_OCP_THD_810	(0x06<<5)
+#define RTS5261_LDO3_OCP_THD_840	(0x07<<5)
+
+#define RTS5261_LDO3_CFG1		0xFF77
+#define RTS5261_LDO3_TUNE_MASK		(0x07<<1)
+#define RTS5261_LDO3_18			(0x05<<1)
+#define RTS5261_LDO3_33			(0x07<<1)
+#define RTS5261_LDO3_PWD_MASK		(0x01<<0)
+
+#define RTS5261_REG_PME_FORCE_CTL	0xFF78
+#define FORCE_PM_CONTROL		0x20
+#define FORCE_PM_VALUE			0x10
+#define REG_EFUSE_BYPASS		0x08
+#define REG_EFUSE_POR			0x04
+#define REG_EFUSE_POWER_MASK		0x03
+#define REG_EFUSE_POWERON		0x03
+#define REG_EFUSE_POWEROFF		0x00
+
+
+/* Single LUN, support SD/SD EXPRESS */
+#define DEFAULT_SINGLE		0
+#define SD_LUN			1
+#define SD_EXPRESS_LUN		2
+
+/* For Change_FPGA_SSCClock Function */
+#define MULTIPLY_BY_1    0x00
+#define MULTIPLY_BY_2    0x01
+#define MULTIPLY_BY_3    0x02
+#define MULTIPLY_BY_4    0x03
+#define MULTIPLY_BY_5    0x04
+#define MULTIPLY_BY_6    0x05
+#define MULTIPLY_BY_7    0x06
+#define MULTIPLY_BY_8    0x07
+#define MULTIPLY_BY_9    0x08
+#define MULTIPLY_BY_10   0x09
+
+#define DIVIDE_BY_2      0x01
+#define DIVIDE_BY_3      0x02
+#define DIVIDE_BY_4      0x03
+#define DIVIDE_BY_5      0x04
+#define DIVIDE_BY_6      0x05
+#define DIVIDE_BY_7      0x06
+#define DIVIDE_BY_8      0x07
+#define DIVIDE_BY_9      0x08
+#define DIVIDE_BY_10     0x09
+
+int rts5261_pci_switch_clock(struct rtsx_pcr *pcr, unsigned int card_clock,
+		u8 ssc_depth, bool initial_mode, bool double_clk, bool vpclk);
+
+#endif /* RTS5261_H */