The read member of struct file should be bool. In order to have the device specific part at the end of the structure move "read" ahead of that.
Signed-off-by: Juergen Gross <jgr...@suse.com> --- blkfront.c | 4 ++-- console/xencons_ring.c | 2 +- fbfront.c | 12 ++++++------ include/lib.h | 3 ++- netfront.c | 4 ++-- tpm_tis.c | 2 +- tpmfront.c | 6 +++--- 7 files changed, 17 insertions(+), 16 deletions(-) diff --git a/blkfront.c b/blkfront.c index 834a978..7c8eb74 100644 --- a/blkfront.c +++ b/blkfront.c @@ -62,7 +62,7 @@ void blkfront_handler(evtchn_port_t port, struct pt_regs *regs, void *data) int fd = dev->fd; if (fd != -1) - files[fd].read = 1; + files[fd].read = true; #endif wake_up(&blkfront_queue); } @@ -484,7 +484,7 @@ int blkfront_aio_poll(struct blkfront_dev *dev) moretodo: #ifdef HAVE_LIBC if (dev->fd != -1) { - files[dev->fd].read = 0; + files[dev->fd].read = false; mb(); /* Make sure to let the handler set read to 1 before we start looking at the ring */ } #endif diff --git a/console/xencons_ring.c b/console/xencons_ring.c index b6db74e..c348f3c 100644 --- a/console/xencons_ring.c +++ b/console/xencons_ring.c @@ -102,7 +102,7 @@ void console_handle_input(evtchn_port_t port, struct pt_regs *regs, void *data) int fd = dev ? dev->fd : -1; if (fd != -1) - files[fd].read = 1; + files[fd].read = true; wake_up(&console_queue); #else diff --git a/fbfront.c b/fbfront.c index d3b3848..6725da1 100644 --- a/fbfront.c +++ b/fbfront.c @@ -45,7 +45,7 @@ void kbdfront_handler(evtchn_port_t port, struct pt_regs *regs, void *data) int fd = dev->fd; if (fd != -1) - files[fd].read = 1; + files[fd].read = true; #endif wake_up(&kbdfront_queue); } @@ -207,7 +207,7 @@ int kbdfront_receive(struct kbdfront_dev *dev, union xenkbd_in_event *buf, int n #ifdef HAVE_LIBC if (dev->fd != -1) { - files[dev->fd].read = 0; + files[dev->fd].read = false; mb(); /* Make sure to let the handler set read to 1 before we start looking at the ring */ } #endif @@ -229,7 +229,7 @@ int kbdfront_receive(struct kbdfront_dev *dev, union xenkbd_in_event *buf, int n #ifdef HAVE_LIBC if (cons != prod && dev->fd != -1) /* still some events to read */ - files[dev->fd].read = 1; + files[dev->fd].read = true; #endif return i; @@ -349,7 +349,7 @@ void fbfront_handler(evtchn_port_t port, struct pt_regs *regs, void *data) int fd = dev->fd; if (fd != -1) - files[fd].read = 1; + files[fd].read = true; #endif wake_up(&fbfront_queue); } @@ -376,7 +376,7 @@ int fbfront_receive(struct fbfront_dev *dev, union xenfb_in_event *buf, int n) #ifdef HAVE_LIBC if (dev->fd != -1) { - files[dev->fd].read = 0; + files[dev->fd].read = false; mb(); /* Make sure to let the handler set read to 1 before we start looking at the ring */ } #endif @@ -398,7 +398,7 @@ int fbfront_receive(struct fbfront_dev *dev, union xenfb_in_event *buf, int n) #ifdef HAVE_LIBC if (cons != prod && dev->fd != -1) /* still some events to read */ - files[dev->fd].read = 1; + files[dev->fd].read = true; #endif return i; diff --git a/include/lib.h b/include/lib.h index a638bc9..df2de9e 100644 --- a/include/lib.h +++ b/include/lib.h @@ -49,6 +49,7 @@ #define _LIB_H_ #include <stdarg.h> +#include <stdbool.h> #include <stddef.h> #include <xen/xen.h> #include <xen/event_channel.h> @@ -183,6 +184,7 @@ struct evtchn_port_info { struct file { enum fd_type type; + bool read; /* maybe available for read */ union { struct { /* lwIP fd */ @@ -235,7 +237,6 @@ struct file { } xenbus; #endif }; - int read; /* maybe available for read */ }; extern struct file files[]; diff --git a/netfront.c b/netfront.c index dfe065b..a566e34 100644 --- a/netfront.c +++ b/netfront.c @@ -255,7 +255,7 @@ void netfront_select_handler(evtchn_port_t port, struct pt_regs *regs, void *dat local_irq_restore(flags); if (fd != -1) - files[fd].read = 1; + files[fd].read = true; wake_up(&netfront_queue); } #endif @@ -783,7 +783,7 @@ ssize_t netfront_receive(struct netfront_dev *dev, unsigned char *data, size_t l network_rx(dev); if (!dev->rlen && fd != -1) /* No data for us, make select stop returning */ - files[fd].read = 0; + files[fd].read = false; /* Before re-enabling the interrupts, in case a packet just arrived in the * meanwhile. */ local_irq_restore(flags); diff --git a/tpm_tis.c b/tpm_tis.c index 475ac5d..4a51027 100644 --- a/tpm_tis.c +++ b/tpm_tis.c @@ -845,7 +845,7 @@ int tpm_tis_send(struct tpm_chip* tpm, uint8_t* buf, size_t len) { } #ifdef HAVE_LIBC if(tpm->fd >= 0) { - files[tpm->fd].read = 0; + files[tpm->fd].read = false; files[tpm->fd].tpm_tis.respgot = 0; files[tpm->fd].tpm_tis.offset = 0; } diff --git a/tpmfront.c b/tpmfront.c index 6049244..d825b49 100644 --- a/tpmfront.c +++ b/tpmfront.c @@ -66,7 +66,7 @@ void tpmfront_handler(evtchn_port_t port, struct pt_regs *regs, void *data) { dev->waiting = 0; #ifdef HAVE_LIBC if(dev->fd >= 0) { - files[dev->fd].read = 1; + files[dev->fd].read = true; } #endif wake_up(&dev->waitq); @@ -438,7 +438,7 @@ int tpmfront_send(struct tpmfront_dev* dev, const uint8_t* msg, size_t length) dev->resplen = 0; #ifdef HAVE_LIBC if(dev->fd >= 0) { - files[dev->fd].read = 0; + files[dev->fd].read = false; files[dev->fd].tpmfront.respgot = 0; files[dev->fd].tpmfront.offset = 0; } @@ -611,7 +611,7 @@ int tpmfront_posix_fstat(int fd, struct stat* buf) /* If we have a response waiting, then read it now from the backend * so we can get its length*/ - if(dev->waiting || (files[dev->fd].read == 1 && !files[dev->fd].tpmfront.respgot)) { + if(dev->waiting || (files[dev->fd].read && !files[dev->fd].tpmfront.respgot)) { if ((rc = tpmfront_recv(dev, &dummybuf, &dummysz)) != 0) { errno = EIO; return -1; -- 2.26.2