/* * GPIO tools - utility helpers library for the GPIO tools * * Copyright (C) 2015 Linus Walleij * * Portions copied from iio_utils and lssio: * Copyright (c) 2010 Manuel Stahl * Copyright (c) 2008 Jonathan Cameron * * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published by * the Free Software Foundation. */ #ifndef _GPIO_UTILS_H_ #define _GPIO_UTILS_H_ #include #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0])) static inline int check_prefix(const char *str, const char *prefix) { return strlen(str) > strlen(prefix) && strncmp(str, prefix, strlen(prefix)) == 0; } int gpiotools_request_linehandle(const char *device_name, unsigned int *lines, unsigned int nlines, unsigned int flag, struct gpiohandle_data *data, const char *consumer_label); int gpiotools_set_values(const int fd, struct gpiohandle_data *data); int gpiotools_get_values(const int fd, struct gpiohandle_data *data); int gpiotools_release_linehandle(const int fd); int gpiotools_get(const char *device_name, unsigned int line); int gpiotools_gets(const char *device_name, unsigned int *lines, unsigned int nlines, struct gpiohandle_data *data); int gpiotools_set(const char *device_name, unsigned int line, unsigned int value); int gpiotools_sets(const char *device_name, unsigned int *lines, unsigned int nlines, struct gpiohandle_data *data); #endif /* _GPIO_UTILS_H_ */ lass='tabs'> summaryrefslogtreecommitdiff
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authorSriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>2017-01-09 16:00:44 +0530
committerJ. Bruce Fields <bfields@redhat.com>2017-01-12 16:14:47 -0500
commitce1ca7d2d140a1f4aaffd297ac487f246963dd2f (patch)
tree5aeab5e0cb6ef404c894a18251588278b9432a2c /include/net/caif/caif_spi.h
parent546125d1614264d26080817d0c8cddb9b25081fa (diff)
svcrdma: avoid duplicate dma unmapping during error recovery
In rdma_read_chunk_frmr() when ib_post_send() fails, the error code path invokes ib_dma_unmap_sg() to unmap the sg list. It then invokes svc_rdma_put_frmr() which in turn tries to unmap the same sg list through ib_dma_unmap_sg() again. This second unmap is invalid and could lead to problems when the iova being unmapped is subsequently reused. Remove the call to unmap in rdma_read_chunk_frmr() and let svc_rdma_put_frmr() handle it. Fixes: 412a15c0fe53 ("svcrdma: Port to new memory registration API") Cc: stable@vger.kernel.org Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'include/net/caif/caif_spi.h')